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Machinery (General / Rotated) Expert Witnesses

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4015 Watters Lane
Gibsonia PA 15044
USA
phone: 724-255-7176
fax: 484-991-1952
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Al Vangura, Jr., MS, CPS, holds an MS in Bioengineering, a BS in Exercise and Sports Science - Biomechanics, and an AS in Mechanical Engineering Technology. Mr. Vangura has over 30 years of product development experience of class I, II, and III medical devices, sports equipment, playgrounds, motor vehicles, appliances, etc. He holds multiple patents and has worked as a machinist for over 10 years.

Mr. Vangura is a seasoned, hands-on executive engineer with an extensive background and experience in the product development cycle in a variety of settings. He has led cross-functional teams developing Medical Devices for Respironics, Hill-Rom, Alung and CardiacAssist, athletic products for Reebok, Adidas, and the U.S. Olympic Biathlon team. He has also developed Military Aircraft for Sikorsky Aircraft, Boeing Defense and Space and the International Space Station for NASA.

Litigation Support - Mr. Vangura has participated in forensic engineering evaluations for over 11 years with extensive courtroom experience. He provides forensic evaluations during legal proceedings involving product-related injuries, motor vehicle crashes, and other incidents requiring independent injury evaluation and review. Mr. Vangura has been involved in over 400 biomechanics cases.

Areas of Specialization:
  • Occupant Biomechanics
  • Walking / Running Biomechanics
  • Trip / Fall Biomechanics
  • Playground Accidents and Safety
  • Sports Equipment Design / Safety
  • Machine Accidents
  • Child Abuse
  • Altercations
  • Medical Devices
  • OSHA, MSHA, FDA, and ADA
  • View Al Vangura's Consulting Profile.
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    Dr. Irving Ojalvo
    Managing Partner
    137 E. 36th Street, Suite 7K
    New York NY 10016
    USA
    phone: 800-358-9909
    fax: 888-358-9901
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    Additional Locations
    New England Offices:
    1011 High Ridge Road
    Stamford, CT 06905
    Southeast Offices:
    22808 Marbella Circle
    Boca Raton, FL 33433


    Forensic Engineering: We have a highly qualified team of Mechanical, Biomechanical, Electrical and Civil engineers, most of whom hold doctorates or other advanced engineering degrees from top universities. Our engineers have hundreds of publications, and are active in safety and accident research. Over the past decades, our engineers have helped thousands of attorneys and others pursue their cases.

    Selected Areas of Expertise:Degrees/Licenses: BS, MS, MA, PhD, ScD, PE
    Airbags are credited with reducing numerous injuries and saving many lives during vehicle accidents. However, there have been incidents where they do not function as intended, and have even caused injuries such as explosive powder burns, detached eye retinas, child suffocation and impact deaths.

    Animations are useful visual tools that can help jurors understand how an incident could, or could not, have occurred. Simply describing an event in court, or showing still pictures, may be insufficient to explain a complex sequence of events.

    Biomechanics is the application of mechanics to the interaction of biological systems with their external environment. When investigating an accident, biomechanical analysis can be used to reconstruct a victim’s motion and relate it to his injuries.

    When an understanding of complex motions associated with various accidents is required, computer simulation is an invaluable tool, which allows the modeling and visualization of rollovers and collisions. In addition to vehicle accidents, computer simulation can also be used to create many other systems of masses and contacting surfaces, such as a toppling light pole after it has been struck.

    Construction sites and equipment present many hazards if proper care is not taken. The space in and around a construction site is often filled with potentially dangerous, high-powered equipment capable of delivering high forces.

    Doors and gates, whether automated or manual, can pose a serious hazard to users if not designed, manufactured, installed and maintained properly. The different types include automatic doors, overhead garage doors, elevator doors, sliding doors, swinging doors, and automatic gates.

    Electric fires are becoming more common as appliances and electric feeds are used more and more in our daily lives. Like other fires, the root cause of an electric fire is the introduction of heat, oxygen, and fuel.

    Electric power and electronic appliances are so integrated with modern life that there is a high degree of likelihood that everyone will receive one or more electric shocks in a lifetime. In many cases, only trivial power levels are involved.

    Second only to automobile accidents, falls are the leading cause of injury and deaths. Of these, accidents due to slipping or tripping form a large proportion. Slips and trips occur on floors, streets, walkways, stairs, etc.

    Forklifts, industrial trucks, skid steer loaders, bobcats and other similar material-handling machines are often difficult to maneuver and susceptible to a wide range of accidents. Their nature exposes operators and nearby co-workers to falling loads, crushing hazards and lading dock falls.

    There are roughly 9,000 golf cart related accidents requiring emergency room treatment in the United States each year. The majority of these accidents are related to either braking, cart rollover or passenger ejection. These problems are common to golf carts due to their open design, lack of seatbelts, poor braking capabilities and the uneven terrains they are driven on.

    The primary function of all guarding is to prevent an operator or bystander from being injured by a potentially dangerous portion of a machine. Often the hazard involves moving parts with the potential to cut, crush or draw-in body parts, although barrier guards may also be necessary when electrical, thermal or chemical dangers are present.

    Human Factors and Ergonomics (HFE) is a branch of science, which is concerned with man’s interaction with his universe. Thus, it is not simply the study of pure science (e.g. sound or light), but rather man’s understanding and reactions (e.g. to hear and see).

    There are over 100,000 ladder accidents annually in the U.S. requiring hospital emergency room treatment. Although many of these result from user misuse, such as an improper extension ladder lean angle against a wall causing it to slip outward, use of a damaged ladder, or failing to lock a step ladder’s spreaders, many ladders fail due to design or manufacturing defects.

    Motorcycles, like passenger cars, are capable of high speeds and must share the road with other vehicles. However, unlike passenger cars, motorcycles are capable of rapid accelerations, offer little protection to the operator during a collision and require special skills to maneuver effectively.

    In many vehicle accident investigations, it is necessary to know not only the speeds and motions of the vehicles involved, but the causes of injuries suffered by their occupants as well. Such investigations seek to answer questions regarding occupant ejection, effects of seatbelt use, airbag deployment and body-interior impacts.

    Parking lots are the scene of many pedestrian accidents because of the close proximity of people and cars and the confusing traffic patterns that sometimes exist. In addition to pedestrian-vehicle collisions, many trip and fall accidents occur in parking lots as well.

    Though swimming pool accidents are sometimes the result of reckless participant behavior, they can also be caused by inadequate supervision, warnings, structures, or defective pool design. Structures commonly found in or near swimming pools include slides, ladders, diving surfaces and fencing.

    Approximately 125,000 serious injuries occur in the US each year related to the use of portable and fixed power saws. Lacerations and similar injuries, such as abrasions and avulsions, account for over 90% of these, which generally occur to males and result in losses in the tens of millions of dollars annually.

    An end user of a product expects that a given product will not only function as intended, but will be safe from non-obvious hazards. Based upon decades of experience with mishaps during use of common and specialized equipment, thousands of standards have been developed for many consumer products and industrial equipment. Numerous organizations exist, e.g., ANSI, ASTM, SAE, and ASME, that regularly review and update these standards.

    Places of business, residences, parking and recreational areas contain potential accident sources such as slippery floors and stairs, product displays, automatic doors, ledges, railings, elevators, escalators and other hazardous items. To prevent such items from causing injury to the public, premises owners and their agents have a responsibility to recognize unsafe conditions and exercise reasonable care to maintain or make conditions safe, or warn the public of the risks involved.

    Supermarkets, pharmacies, home improvement, and department stores expose their customers to many potential accident sources such as floors and aisles, which can become unsafe, and display merchandize that can topple or cause tripping. To prevent such accidents from occurring, these establishments should maintain routine scheduled inspections to insure that unsafe conditions are detected and corrected before accidents occur.

    In many vehicle rollover investigations, it is necessary to know not only the speeds and motions of the vehicles involved, but the causes of injuries suffered by their occupants as well. Such investigations seek to answer questions regarding occupant ejection, effects of seatbelt use, roof crush and body-interior impacts.

    Motor vehicle seatbelt use provides highly effective protection in frontal collisions for impact angles up to 30 degrees off-center (i.e. between 11 and 1 o’clock). All states have laws requiring their use for front seat passengers, as they have been shown to reduce moderate to severe injuries by 50%. They are less effective when your car is hit in the rear or side and sometimes their locking devices malfunction or the anchorage gives way.

    Recreation, sports, and gym equipment are subjected to large dynamic forces and must be designed to support these loads and protect users from unintentional hazards. Adequate instructions and warnings may be required if their assembly and proper use are not obvious.

    Codes and standards specify criteria necessary to ensure that a product, material or process will consistently and safely perform its intended function. Although standards provide minimum design requirements, conforming to a standard is not always sufficient in preventing an accident.

    Structural failure can often produce catastrophic results. In many cases, the damage seen after the accident is not indicative of the cause of the initial failure. Fortunately, based on physical evidence, an investigator can frequently determine how and why a structure failed.

    Heavy trucks, whether tractor-trailers, construction vehicles or garbage haulers, are involved in many serious traffic accidents due to their large weight, high centers of gravity, decreased visibility, poor handling and reduced braking efficiency. In addition, articulated tractor-trailers are subject to additional problems such as jack-knife and trailer sway instabilities.

    Motor vehicle accidents are the most common type of incidents producing injury in the US. The main issues in litigating automotive accidents involve vehicle speeds, seatbelt usage, airbag deployment, vehicle component failure (e.g. steering, braking), roadway design, occupant biomechanics, rollover, visibility, etc.

    A person’s interaction with his environment comes largely from visual cues. Without this information, a pedestrian can trip over an unseen object or a driver might not detect a dangerous situation. In order to avoid these hazards, a person requires adequate lighting and should be provided with appropriate illumination for a given task.

    A warning must inform individuals of a danger, which would not be obvious to them. It must tell them how to avoid the danger, and be easily understood. It should also provide them with the consequences of not heading the warning.

    A car is stopped for a light when it is unexpectedly rear-ended causing little or no damage to either vehicle. Nevertheless, the passengers of the struck vehicle complain of neck, shoulder and back pain. Insurance claim representatives, attorneys, medical, engineering and biomedical experts are then brought in and various conflicting allegations, testimony and opinions are expressed.

    Pedestrian and bicycle accidents in the United States result in approximately 80,000 and 50,000 injuries each year, respectively. Though pedestrians and bicycles move differently, they share important characteristics as both have little protection during a roadway collision with a motor vehicle.

    7/14/2009 · Human Factors
    A standard can be defined as a document issued by a recognized agency, and dealing with design and/or safety requirements relating to a specific product or type of activity. Such agencies include the U.S. Occupational Safety and Health Administration (051-IA) and the American National Standards Institute (ANSI). OSHA standards are generally legally binding for an employer, while ANSI standards are generally of an advisory nature. The term "industry standard," however, is ordinarily taken to have a broader meaning, including formal standards as just defined, and also including designs and procedures not required in formal standards, though prevailing in a specific industry, and which represent generally accepted custom and practice.

    7/14/2009 · Forensic Analysis
    Persons with no training in engineering are generally unaware of the nature of engineering analysis, and so tend to assume that testing, as a means of determining the causation of accidents, is a dominant tool of the engineer. In the following examples, we shall undertake to explain the nature of engineering analysis, and to show that it is more basic than testing because testing without analysis is meaningless. Further, while analysis is always necessary in accident reconstruction, testing is only sometimes necessary.

    There are approximately 180,000 lawnmower accidents per year. In this introductory presentation, we undertake to describe the various ways in which these accidents occur.

    7/14/2009 · Forensic Analysis
    Second to automobile accidents, accidents due to falls are the leading cause of injury and death. Of these, accidents due to slipping (not tripping) form a large proportion. Slipping may occur on floors, walkways, and stairs or steps. For Introductory purposes, however, the present discussion will be limited to slipping on flat surfaces such as a floor or sidewalk.

    7/14/2009 · Human Factors
    When a person becomes aware of a dangerous situation, a time-interval must elapse before he can take defensive action against it. This time interval, commonly called the reaction time, has been found to be about 0.7 second for all normal persons, regardless of their background and training. This suggests that the reaction time depends on some basic aspect of the human physiology-involving the brain, nervous system, and muscles-which does not vary much from person to person.

    A car is stopped for a light when it is unexpectedly rear-ended by a vehicle from behind. It is not a hard impact and there is little or no damage to either vehicle, because the energy absorbing bumpers have protected them. Nevertheless, the passengers of the struck vehicle complain of neck, shoulder and back pain. The next day they allegedly experience even greater pain and visit a medical person who claims that they have been injured. Insurance claim representatives, attorneys, medical, engineering and biomedical experts are then brought in and various conflicting allegations, testimony and opinions are expressed. Do we have a legitimate injury claim on our hands or a situation of fraud?

    7/14/2009 · Forensic Analysis
    Accident reconstructionists are often called on to determine the distance that a car, covers while being braked to a stop. Conversely, the reconstructionist may be given information as to the length of the skidmarks left by a car on the roadway, and may be asked to determine how fast the car must have been going at the beginning of the skid. An expert can accomplish this with considerable accuracy, based on a knowledge of the physical principles that are involved, plus available information relating to the friction of tires on various types of road surfaces.

    7/14/2009 · Forensic Analysis
    According to the Consumer Products Safety Commission (CPSC), there are approximately 10,000 golf car related injuries requiring emergency room treatment in the US each year. One significant mode of injury in golf car accidents is passenger ejection, which can lead to serious injuries, especially of the head. Based on CPSC statistics, roughly 35% of golf car accidents involve a person falling out of the car. In addition to ejection accidents, at least 10% of golf car accidents involve a rollover and statistics indicate that such accidents are roughly twice as likely to lead to injuries requiring a hospital stay as non-rollover accidents.

    7/14/2009 · Forensic Analysis
    According to Consumer Product Safety Commission (CPSC) accident estimates, tens of thousands of stepladder accidents requiring emergency room treatment occurred annually in the United States. Approximately 85-90% of these accidents involve the user falling from the ladder and 8-9% of these injuries are serious enough to require that the victim be admitted to a hospital. In addition to posing a severe health concern, these accidents have significant loss-of-wages and high medical expense implications.

    11/30/2005 · Expert Witnessing
    Participation of the proper automotive expert in a personal injury lawsuit can govern its success. This article develops four basic principles to optimize their use, while minimizing their cost, and describes some important techniques used by the accident reconstructionist

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    Bransford Pickett, PE
    PE Mechanical Engineering
    1356 Santa Olivia Road
    Chula Vista CA 91913
    USA
    phone: 619-977-7693
    fax: 619-781-8752
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    Bransford Pickett, PE, DFE, BSc, MScBA, has over 25 years of experience as a Mechanical Engineer. SEFS expertise includes design and review of material handling equipment, material handling management, and ship board systems. SEFS offers litigation support services for Accident Investigation and Reconstruction covering failure analysis, process simulation, regulatory compliance, equipment reliability, and personal injury / safety. His materials handling and engineering services are offered to attorneys, insurance and end user companies nationally and internationally.

    Mr. Pickett is a member on the American Society of Mechanical Engineers B30 committee on Safety Codes and Standards for cranes and rigging as well as a member of several subcommittees. He is also a member of American Society of Mechanical Engineers P30 Committee- Planning for the Use of Cranes, Derricks, Hoists, Cableways and Lifting Accessories. ASME BTH Standards Committee.

    Mr. Pickett is a Professional Engineer, and holds a BSE from the University of Michigan, Ann Arbor, and a MScBA in Finance from San Diego State University, as well as a board certified Diplomate Forensic Engineer. He has qualified as an expert witness in the State of New York Supreme Court and the State of California Supreme Court.

    Accident Investigation:
    • Man baskets, Forklifts, Scissors Lifts, Aerial Lifts, Rigging Gear, Hydraulic Jacks, and Hydraulic / pneumatic Lift Systems, Automotive Lift Systems, Conveyors, Pallet and Packages Conveyors, Pneumatic Systems, Machine tools, Boats, Barges, and Elevators
    • Tower, Mobile, Bridge, Truck, Portal, Container, Jib and Floating Barge Cranes, and Derricks
    • Operator training compliance to National Commission for the Certification of Crane Operators, NCCCO, requirements for tower crane, mobile crane, overhead crane, articulating crane operator training and certification, signal person, and rigger certification
    • Compliance covers applicable national and international standards that include the ABS, ASTM, ASM, ASME, ANSI, WSTDA, ALI, etc. and DIN, EN, FEM to list a few. National regulations include state and federal OSHA requirements as well as DOE, military specifications and standards
    View Bransford Pickett's Consulting Profile.
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    Neil R. Temple
    11300 Lilting Lane
    Fairfax Station VA 22039-1718
    USA
    phone: 703-978-3000
    fax: 703-978-3000
    Neil R. Temple, P.E., C.S.P. is a Registered Professional Engineer in Safety (P.E.) and a Board Certified Safety Professional (C.S.P.) in Comprehensive Practice. He has over 30 years of diverse safety and human factors experience and is Certified by four additional safety competency boards.

    During his career he has managed the OSH Safety Compliance and Inspection Program in the Mayor's Office of Safety in the City of Baltimore and served as Project Safety Director for one of the largest construction projects in the world in Jubail, Saudi Arabia. Upon numerous requests, Mr. Temple has provided expert testimony or technical litigation support to Plaintiff or Defense attorneys in accident/injury cases.

    Areas of Expertise:
  • Accident Causal Determination
  • Machine Guarding
  • Product Design Safety Analysis
  • Slip and Fall Dynamics
  • Stair Design & Code Compliance
  • Walking Surface Characteristics & Measurement
  • Electrical Safety
  • Warning & instruction adequacy
  • Building & Safety Code Compliance
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    Greg Gerganoff, ASP, CSP, Esq.
    Certified Safety Professional

    Denver, CO
    All States USA
    phone: 303-330-4616
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    Greg Gerganoff OSHA Safety Expert PhotoGreg Gerganoff, ASP, CSP, Esq., is an OSHA / MSHA Safety field and compliance expert with experience in the heavy construction, manufacturing, light rail construction, power plant outages, public schools, oil and gas, mining, pipeline, and trenching and excavation industries.

    As OSHA and MSHA are not mere “guidelines to safety” but federal laws enforceable in administrate hearings and federal courts, Mr. Gerganoff's 12 years of experience as a Licensed Attorney, and additional 17 years as a safety professional (CSP), make him uniquely qualified to research and interpret OSHA regulatory laws (29 CFR 1910 & 1926) and MSHA (30 CFR Part 46). He maintains his license to practice law in the state of Colorado.

    Litigation Support - Understanding the role of case assessment and the value of discovery, Mr. Gerganoff's field safety expertise and legal experience can assist legal counsel at any stage of a safety related case or claim. His services are available to counsel looking to a safety professional as a subject matter expert expecting solid, well researched, sited, and substantiated opinions. No advocacy, just plain, unbiased, well-reasoned and supported opinions. Mr. Gerganoff is retained by attorneys for both Plaintiff and Defendant.

    Safety Training includes but not limited to:
    • PEC SafeLand Core and Basic
    • OSHA 10 & 30 Hour Outreach Trainer Gen Industry
    • H2S Training (in accord with ANSI Z390.1-2006)
    • MSHA New Miner (Surface Metal and Nonmetal)
    • Aerial / Man Lift Operator Training
    • Power Tool Safety and Inspection
  • Hazard Communication
  • Lockout / Tagout
  • Confined Space
  • Trench and Excavation
  • Fork Lift Operator Training / Lifting
  • Fall Protection
  • View Greg Gerganoff's Consulting Profile.
    10/26/2016 · Construction
    During a recent conversation with a friend who had purchased a small construction company he mentioned in passing that one of his employees had injured his ankle on the job but didn't report it to his work comp carrier as it was a minor incident, no days off work, didn't want his rates to go up, why bother. All is good. Right?

    8/18/2016 · OSHA
    Electricity is a vital source of energy in our daily lives. It powers tools, provides light and heat. Our working lives are much improved and efficiency greatly increased thanks to electricity. But what about those situations where power from the grid is unavailable. Well, portable generators are an excellent tool for such a scenario.

    6/24/2016 · OSHA
    Safety culture is a term frequently bandied about in today's business world and sounds as trendy as "mission statements" were years ago. (Let's not forget "best in class". First time I heard this at a company meeting I looked around to make sure I hadn't mistakenly wandered into a dog show. Really?)

    Use fall protection; Use trench boxes when excavating; Lock out Tag Out any time repair or maintenance of equipment involving stored energy is performed; Slips, Trips and Falls are one of the most expensive types of injury. For my sixteen years in safety these safety hazards were always in the forefront of safety concerns for businesses and safety professionals. Guess what? Work related road way crashes is the number one serious/fatal injury cause for U.S. workers. OSHA recognizes this. CDC/NIOSH has generated a white paper studying this fact. Who knew? So here is some info on this number one safety hazard in the US work place.

    4/11/2016 · OSHA
    In the safety world hazard recognition plays a vital role in keeping your people safe from unsafe behaviors and/or conditions. Some hazards are easily recognized, for example an employee climbing up a 20 foot ladder with tools held in both hands. (This is a fall hazard by the way.) Common sense right? The safety guy who taught me safety had a great response to this attitude, "Few people have any sense (read knowledge) in common (read shared alike)". So while some safety hazards are immediately recognizable others require training to spot and avoid. Training is a key method in avoiding the "Ostrich Zone". One such hazard is Hydrogen Sulfide. You don't want to bury your head facing this hazard. (Won't do much good anyway, Hydrogen Sulfide is heavier then air!)

    3/7/2016 · OSHA
    "If you don't know where you are going, you will probably end up somewhere else.", so said Laurence J. Peter, a professor at the University of Southern California whose works touched the business world. (He is well known for the "Peter Principal".) Peter's above quote essentially points out that action lacking a clear objective will likely lead to unwanted or unintended consequences.

    2/19/2016 · OSHA
    Hazard recognition plays a vital role in keeping employees safe. Some hazards are easily recognized, for example an employee climbing up a 20-ft ladder while holding tools in both hands is an obvious fall hazard. While some safety hazards are immediately recognizable, others require training to spot and avoid. One such hazard is hydrogen sulfide (H2S). Training is a key method to avoid the "ostrich zone." You do not want to bury your head when facing this hazard.

    1/29/2016 · OSHA
    When personal injury events occur legal negligence actions may arise. Common law negligence is established by plaintiff showing defendant owed plaintiff a legal duty, to conform to a standard of care, defendant breached that duty, plaintiff suffered injury and there is a causal relationship between the breach and injury. FN 1 But what sources of standard of care proofs are available? How does a litigant go about proving standard of care?

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    Dr. J. Rasty, PE, MBA
    President & CEO
    1500 Broadway, Ste. 503
    Lubbock TX 79401
    USA
    phone: Cell:806-773-7787 or Ofc: 806-368-9811
    fax: 214-614-4955
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    Since 1988, Real-World Forensic Engineering, LLC ("RWFE") has provided engineering services to industries and government labs, as well as litigation support to both plaintiff and defense attorneys practicing in many areas.

    RWFE Expertise Includes:

    Components & Machinery
    Metallurgy & Corrosion
    Dynamics of Impact & Collisions
    Friction Analysis / Slips, Trips and Falls
    Intellectual Property & Patent Review
    Accident Reconstruction / Animation
    Computer Aided Design
    Education & Training
    Electrocution & Switch Malfunction
    Grounding & Lightning Protection
    Lightning Impulse Testing
    Products and Premises Liability & Safety
    High-Voltage & Current Power Systems
    Bridge Design and Safety
    Fire & Explosion Cause and Origin
    And Much More...


    At RWFE, we proudly distinguish ourselves by our Four C's:

    CREDENTIALS. COMPETENCE. CREDIBILITY. COMMUNICATION.

    Credentials:B.S., M.S., M.Eng., M.B.A., J.D., and Ph.D. Degreed
    Licensed Professional Engineers in Mechanical, Electrical, and Civil Engineering
    Tenured University Professors and Professionals
    NAFI Certified Fire and Explosion Investigators (CFEI)
    Licensed Master Electricians
    Competence:Over 80 Combined Years of Experience in Engineering R&D, Industry, Academia, Consulting, and Expert Witness Litigation Support
    Over 120 Combined Deposition and Court Testimonies
    Credibility:Internationally Recognized in Our Areas of Expertise
    More Than $19 Million in Peer-reviewed and Funded Research Grants
    Over 200 Combined Scientific Publications and Journal Articles
    Communication:Over 20 Different Undergraduate and Graduate-level University Courses
    Over 30 Invited Short Courses, Talks, and Lectures

    Design Evaluation – Accident Investigation – Intellectual Property
    Failure Analysis – Fire Cause & Origin – Component Testing
    Computer Aided Drafting – Accident Animation
    Expert Witness & Litigation Support

    www.ExpertEngineering.com
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    Daniel Rapperport
    8 Wallis Court
    Lexington MA 02421
    USA
    phone: 781-862-9001 or 339-222-2822
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    Rapperport Associates, Inc., provides exceptional capability in Failure Analysis, Fire and Explosion Investigation, Accident Reconstruction, Structural Analysis, Mechanical and Electrical Engineering, Metallurgy and Materials Science.

    We have provided superior technical support for litigation since 1974, and possess an extraordinarily talented technical team with impeccable academic and industrial credentials and proven analysis capability. Our team of distinguished scientists and engineers is drawn principally from Massachusetts Institute of Technology (M.I.T.) and Stanford University.

    AREAS OF EXPERTISE:

    Failure Analysis
  • Structural Design Analysis
  • Metallurgical Failures
  • Finite Element Stress Analysis
  • Fracture and Fatigue Analysis
  • Scanning Electron Microscopy
  • Corrosion

  • Accident Reconstruction
  • Automobiles / Trucks
  • Biomechanics / Injury Mechanism
  • Off-Road Vehicles
  • Occupant Motion
  • Aircraft
  • Animation

  • Fire & Explosion Analysis
  • Cause and Origin
  • Electrical
  • Gases, Liquids and Dust
  • Industrial Processes
  • ........Safety
  • Machine and Industrial Safety
  • Machine Guarding
  • Construction Failures
  • Slips, Trips, Falls


  • Engineering
  • Mechanical
  • Structural / Civil
  • Metallurgy
  • Materials Science
  • Aeronautics and Astronautics
  • Electrical
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    Dr. J.P Purswell, PhD, PE, CPE
    Ergonomics & Safety Expert
    2035 Mulligan Drive
    Colorado Springs CO 80920
    USA
    phone: 719-330-0126
    fax: 719-265-6905
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    Dr. J. P. Purswell, PhD, PE, CPE has extensive experience in Human Factors, Ergonomics and Safety Engineering. He holds a doctorate in Industrial & Systems Engineering from Virginia Tech. A member of the Human Factors and Ergonomics Society and the American Industrial Hygiene Association, Dr. Purswell served as the past Chair of the Industrial Engineers PE exam from 2005 to 2009. He continues to serve on the committee which is responsible for the preparation of the national professional engineering examination in industrial engineering.

    Dr. Purswell is the author of more than 20 publications and presentations on Product Safety, Occupational Safety, Printed Warnings, and Auditory Warnings. Examples of products addressed include silica, asbestos, cleaning chemicals, gasoline containers, and recreational equipment. Dr. Purswell maintains NIST-calibrated equipment for the measurement of light, sound, force, and whole-body and hand-arm vibration in addition to standard photo and video equipment.

    Dr. Purswell has been an Expert Witness in the legal industry since 1997. He has been qualified as an expert in state and federal courts across the nation in safety engineering, including safety analysis techniques such as Fault Tree Analysis and FMEA as well as product warnings / instructions and OSHA compliance issues. Dr. Purswell's services include site inspections, document review, drafting Rule 26-compliant reports, deposition, and trial testimony. He has been retained by attorneys for both Plaintiff (40%) and Defense (60%) more than 100 times, has been deposed approximately 50 times, and has testified at trial over 20 times.

    Areas of Expertise:
    • Warning and Safety Instructions
    • OSHA Compliance
    • Chemical Accident Prevention
    • Product Safety
    • Lockout / Tagout & Machine Guarding
    • Trucks and Forklift Accidents
  • Power Tools Safety
  • Hazard Communication - Audible Alarms
  • Employer Safety Training and Supervision
  • Perception / Reaction Time
  • Ergonomic Work Practices
  • Working and Walking Surfaces - Slip, Trip and Fall
  • View Dr. Purswell's Consulting Profile.
    10/10/2013 · Ergonomics
    In 2005 a summary of "General Duty Clause" citations issued for ergonomic hazards was published (Purswell & Purswell, 2005). That summary showed that the primary area of ergonomics citation activity under the "General Duty Clause" (paragraph (5)(a)(1) of the OSHAct of 1970) by OSHA to that point had been concentrated in nursing homes, peaking in 2002 and 2003.

    The purpose of the current study was to update and expand upon an earlier study performed to review and categorize OSHA accident investigation records for pedestrian-backing vehicle accidents according to whether the backing vehicle had a backup alarm and whether the alarm was installed and functioning as intended. The current study includes an analysis of additional records as well as the business type (SIC code) of the employer.

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    Sandra Whitaker, CSHO
    691 Caribou
    Spring Branch TX 78070
    USA
    phone: 210-216-3566
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    Sandra Whitaker, CSHO retired in 2013 after over 40 years in the Corporate Safety Environment. Credentialed through United States Department of Labor OSHA Training Institute as a Certified Safety and Health Official, her experience has included warehouse operations, manufacturing, food & beverage, and construction.

    Litigation Support - Under the business name On-going Safety & Health Advice, Ms. Whitaker provides expert witness services for plaintiff or defense attorneys. Her proficiency in litigation support and consulting is in case analysis, accident investigation, written programs, US-DOL-OSHA 29 CFR 1910, audits, regulation compliance, record-keeping, and response to citation and inspections.

    Ms. Whitaker has served as an Expert Witness since 2013, with a 99% record on the prevailing side. Her services include deposition, arbitration, and trial testimony as needed.

    Areas of Expertise:
    • Aerial lift / Scissorlift Operation
    • Back Injury / Manual Material Handling
    • Confined Space Entry
    • Fall Protection
    • Fire Protection / Portable Extinguishers
    • Forklift / Powered Industrial Truck Operation
    • Hazard Communication Programs
    • Injury and Illness Recordkeeping
    • Ladders
    • Lockout / Tagout
    • Machine Guarding
  • Noise / Hearing Conservation
  • OSHA Competent Person Requirements
  • OSHA Multi-employer Worksite Inspection Policy
  • Personal Protective Equipment (PPE)
  • Respiratory Protection
  • Safety Inspections
  • Slips and Falls
  • Signs and Signals
  • Stairways
  • Tool and Equipment Safety
  • Warehouse Safety
  • View Sandra Whitaker's Consulting Profile.
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    David K. Merrifield, CSP
    4515 Stonecrest Terrace
    St. Joseph MO 64506
    USA
    phone: 816-364-1540
    David-Merrifield-Equipment-Machinery-Safety-Expert-Photo.jpg
    David K. Merrifield, CSP, has over 40 years of experience in Manufacturing and Manufacturing Management. A Certified Safety Professional, he has 23 years of experience in Safety Management, Risk Management, and Litigation.

    Mr. Merrifield is knowledgeable in a broad range of construction, industrial and maintenance tools, machinery, and equipment. He has served as Chairman of the American National Standards Institute’s (ANSI) A92 main committee for Aerial Work Platforms and Chairman of ANSI Z535.6 Safety messages in collateral materials.

    Litigation Support - Mr. Merrifield provides expert testimony and consultation involving Expert witness testimony concerning government and industry standards, warnings, instructions, maintenance and inspections, misuse, hazards and hazard control, duties of parties, fall protection, safety devices, product recalls, and service bulletins. His expertise is available to counsel representing both the Plaintiff and the Defense.

    Areas of Expertise:
    • Warnings and Instructions
    • Standards, Regulations, and Industry Practice
    • Safe Design Process
    • Training
    • Maintenance and Inspections
    • Modifications to Machinery, Equipment
    • Misuse
    • Hazard Analysis
    • Hazards in the Workplace
    • Duty of Owners, Users, Operators
    • Fall Protection
    • Safety Devices
    • Product Recalls and Service Bulletins
    • Safety Policies and Procedures
    • Document Creation and Retention
    • Accident Investigation
  • Product Safety
  • Products Liability
  • Construction Machinery
  • Scissor Lifts
  • Boom Lifts
  • Personnel Lifts
  • Cherry Pickers
  • Fork Trucks
  • Telescopic Material Handlers
  • Skid Steer Loaders
  • Mast Climbers
  • ANSI Standards
  • OSHA
  • Industry Practice
  • Electrocution
  • Tip Over
  • View David Merrifield's Consulting Profile.
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    Robert A. McNeese
    Conveyor Consultant
    ALL STATES USA
    phone: 228-623-5131
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    Robert A. (Bob) McNeese is a Professional Conveyor S.M.E. Subject Mater Expert with close to 40 years of conveyor system experience in most every aspect of conveying systems. Mr. McNeese offers his services to the conveying industry to enhance operations, maintenance, and overall safety performance as well as providing 3rd party factually based non- partial overviews and opinions to legal counsel as an expert witness for the purpose of fair litigation.

    Consulting - Bob McNeese has worked to improve efficiency and safety with companies such as Chevron, Southern Company, International paper, DuPont, and various shipping bulk terminals. He offers his unique services to alert customers to the ever changing OSHA, MSHA, ASME, regulations surrounding industrial conveying equipment. Several delivery methods are available to insure the new information and changes are introduced to the jobsite at the core of the workforce (site safety audits, safety topics, banners, labels, safety seminars)

    Litigation Support - Mr. McNeese is an expert in all industrial areas of Conveyors and Bulk Handling Systems. He provides expert witness services to attorneys representing both plaintiff and defendant. Mr. McNeese provides expertise on issues concerning industrial conveyor system accidents and safety concerns as a result of manufacturing, installation, operation, or maintenance.

    Specific Areas of Expertise:
    • Refineries
    • Port Facilities
    • Storage Transfer Facilities
    • Power Plants
    • Mines
    • Chemical Plants
    • Grain Elevators
    • Fertilizer Plants
    • Paper Mills
    • Food Processing
    • Coal Handling
    • Cement
    • Pet Coke
  • Wood Chips
  • Iron Ore
  • Lignite
  • Steel
  • Aluminum
  • Salt
  • Plastics
  • Grain
  • Fertilizer
  • Aggregate
  • Tire Shredding
  • Waste
  • Various Dry Chemicals
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    Marc H. Richman, ScD, PE
    One Richmond Square, Ste. 105C
    Providence RI 02906
    USA
    phone: 401-751-9656
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    Marc H. Richman, ScD, PE, has been actively engaged in Forensic and Consulting Engineering for over 45 years. He has personally supervised and conducted over 3,000 investigations for individuals, attorneys, insurance carriers, industrial firms, state and federal agencies and commission, and police and fire departments.

    Dr. Richman's educational background at MIT was physical metallurgy and failure analysis. He taught as an instructor at MIT and ran the analytical Metallography laboratory there as well as set up the electron microscopy laboratory at MIT. At Brown, he was director of the Central Electron Microscopy Lab and was very active in Failure Analysis and Fractography as well as Analytical Metallography.

    Dr. Richman has investigated failures of offshore drilling rigs and propeller shaft failures(Bethlehem Steel Shipbuilding), helicopter crashes on the Pan Am building and at Newark Airport (NY Airways and Lloyds of London), construction elevator failures (Gilbane Construction and Aetna), bridge failures (Mystic River Bridge upper deck - MassPort Authority), hydroelectric plant shaft failures (McCallum Enterprises), pressure vessel and machinery failures, military equipment and weapons failures, building failures and collapses (US Navy and others), and steel mill production (Italy).

    Litigation Support - Marc H. Richman has testified for both plaintiff and defense in about 175 trials in civil and criminal courts. He has served as Technical Advisor to the US District Court (RI) on patent cases (Hon. Raymond Pettine) and has been a consultant for the US Naval Applied Science Laboratory, the US Army Materials and Mechanics Research Center, Battelle, Texas Instruments, etc.).

    Dr. Richman has provided expert testimony from product malfunctions, to fatal car accidents, to peeling paint on the Pell Bridge, to the Pan Am Building helicopter crash, to water and gas main failures, to metallurgical examinations of murder weapons.

    Areas of Expertise:
    • Forensic Engineering Investigations
    • Failure Analysis
    • Fire Cause and Origin
    • Product Liability
    • Accident Reconstruction
    • Gas Explosions
  • Structural Failures
  • Metallurgy
  • Orthopedic Device Failure
  • Product Liability
  • Machine Guarding
  • Instructions and Warnings
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    Brian Huber
    8595 Columbus Pike, #222
    Lewis Center OH 43035
    USA
    phone: 740-816-9178
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    Brian Huber is a Machine Safety Expert with over 20 years of experience designing control reliable systems and risk assessment programs. He has attended OSHA Machine Guarding Schools 204 and 204A, OSHA Electrical Safety School 309A, OSHA 501, and the ASSE Workshops for ASP certification, NPFA 79 and 70E.

    A member of ASSE, Mr. Huber has been authorized by OSHA to conduct General Industry 10 and 30 Hour Training and has also been certified as a PMMI trainer. His expertise with machine guarding products has been recognized by major manufacturers of machine guarding products and he has advised on new product development and applications. Since 1996, he has been deeply involved in machine safety and has consulted with many companies to improve their machine safety programs.

    Litigation Support - Mr. Huber has a strong background in automation and control with additional experience in machine safety can provide the depth of knowledge needed to prevail in court. He provides expert witness services to help interpret ANSI and NFPA safety standard issues as well as OSHA regulations in Subpart O.

    Mr. Huber's services include advice, training, depositions, or court testimony. Training can be provided to law firm staff regarding Control Reliability, how circuits should work, and the frequent deficiencies of installed machine control circuits. Working examples of Control Reliable circuits, examples of proper and deficient products can be shown to interested parties.

    View Brian Huber's Consulting Profile.
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    Frank J. Loeffler Jr.
    P.E.
    20511 Highland Lake Drive
    Lago Vista TX 78645
    USA
    phone: 512-267-8700
    fax: 512-267-2547
    Design and Forensic Engineering for Conveyors and Bulk Materials Handling Systems, We specialize in the design of materials handling systems and conveyors of various types including: belt, roller, slider, overland, pipe, steep angle, screw, drag, bucket elevators and pneumatic. We also design the specialty mobile machines, (track, rail, and wheel mounted) such as: stackers, reclaimers, snow loaders, mobile screening plants, self-unloading trains, self-unloading ships, ship unloaders and shiploaders. Our clients are both Plaintiffs and Defendants.

    Some of the standards considered are: Belt Conveyor Manufacturers Association – CEMA, Safety Standard for Conveyors ASME B20.1,OSHA & MSHA

    Areas of Expertise:
    • Conveyor Fires and Explosions
    • Conveyor Guarding
    • Conveyor Injuries
    • Conveyor Product Liability
    • Restraint of Trade
    • Patent Infringement
    • Real Estate Asset Appraisal Conveyor Systems
    • Antitrust
    8/24/2011 · Mining
    BELT CONVEYORS ARE BEING USED TO HANDLE TOP SOIL, overburden and ore within many of today's strip mines. In addition, belt systems are being used more frequently in connecting the pit limits to the process point or rail loading area.

    7/6/2011 · Mining
    This paper discusses how bed blending systems can be applied to the utilization of fossil fuels. The subjects of quality control and available stacking and reclaiming equipment are also explored along with a case history of bed blending at Utah International Corporation's Navajo Mine.

    2/6/2010 · Conveyor Belts
    For more than 100 years the troughed belt conveyor has been used to transport bulk materials. Its success has been attributed to its relatively low capital cost, high degree of reliability and availability, and low operating and maintenance costs. The only significant problems with conventional conveyors have occurred at transfer points when

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    David A Cooper
    Eric A. Lee, CFE, Principal of Consulting
    Kestrel House
    Marine Road
    Eastbourne East Sussex BN22 7AU
    GBR
    phone: 01323-431325
    fax: 01323-431309
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    LECS (UK) Limited is an International Engineering Firm specializing in Lifts, Escalators, Facade Access and Funiculars (cable cars). With over 20 years of trading history, their specialized engineers are qualified, experienced and carry full professional insurances. Members of the engineering team have all worked for major contractors and have held positions including Senior Engineer, Project Manager and Commissioning / Test Engineers. As a result, LECS has over 150 years of accumulated experience within the key staff of the engineering team and currently employs 10% of the world’s graduates of the MSc in Lift Engineering from the University of Northampton.

    LECS (UK) Limited is a member of independent bodies such as ACE, BSI and ConstructionLine. They have an accredited Quality Assurance scheme to ISO 9001 (2008) and are regularly audited. They provide services for many market sectors including overseas projects, hotels, retail, commercial health, local authority and heritage.

    The engineers at LECS (UK) have extensive experience as Expert Witnesses and Consultants in litigation involving lifts and escalators. Their services include preparing expert reports in accordance with Regulation 35 of the Civil Procedure Rules and also in Criminal cases. They are also available for adjudication and arbitration cases. LECS (UK) expert witness services have been called on in overseas situations including Gran Canaria, Dubai, Hong Kong, Spain and Turkey.

    Services Include:
  • Expert Witness - Litigation Support
  • Statutory Inspections
  • Maintenance Audits
  • Acquisition & Condition Surveys
  • Project Management
  • Traffic Analysis
  • Risk Assessments
  • New Installations & Modernization Specifications
  • Maintenance Specifications
  • Training
  • Portfolio Management
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