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Manufacturing Expert Witnesses

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Gerald O. Davis, PE
4723 Squaw Valley Court
Glen Allen, VA
23060
VA, DC, MD, WV, NC USA
phone: 804-967-9129
fax: 804-967-9130
jerry-davis-photo.jpg
Gerald O. Davis, PE, President and co-owner of DM&ME, has over 40 years experience in Materials Engineering and Business. Mr. Davis is a Forensic Expert in Materials Usage, Corrosion, Metallurgy, Mechanical Failure, & Root-Cause Failure Analysis. His recent background includes work as a corrosion researcher, senior engineer, and program manager for Battelle Memorial Institute, DNV, Inc., Henkels & McCoy, Inc., respectively and, since 2004, as president of DM&ME.

Mr. Davis has been offering Expert Witness Services for the past 10 years for product liability and personal injury evaluations. He is retained for his knowledge of Forensic Engineering and Root-Cause Failure Analysis. Mr. Davis is experienced with depositions and trial testimony. His services include specification and interpretation of metallurgical lab tests plus review of physical evidence and its meaning. His findings are presented in clear oral and written reports which can be communicated to judges and juries in non-technical language.

Areas of Expertise:
  • Root Cause Failure Analysis
  • Laboratory Testing and Interpretation
  • Corrosion Analysis & Control Methods
  • Objective Comminucations
View Consulting Profile.
11/16/2015 · Corrosion
A common cause of failures in various types of equipment is fatigue failure of bolts that secure parts together. Fatigue in any type of dynamically loaded mechanical component accounts for more than 80% of all failures. This post reviews some important factors in fatigue failure of metallic bolts.

The working relationship between the attorney and their expert witness in a case can be more effective if a few simple guidelines are followed. These are common sense things but one or more can be overlooked in the frequent day-to-day rush that busy attorneys face. When that happens some of the potential contributions from the expert may be compromised or lost to the detriment of the attorney's client.

6/30/2015 · Engineering
Too frequently an attorney will begin to seek a potential expert witness only after having done considerable initial work. Often there is a last minute rush to locate and select specialized technical assistance. These approaches can have expensive consequences. Alternatively, securing a suitable expert early in the litigation process offers the following advantages for the retaining attorney:

6/2/2015 · Engineering
Many negative consequences can result from failures of a range of different products that often lead to property & casualty insurance disputes or product liability legal actions. The products may include consumer or industrial goods. Typically the private user or worker is injured or a business incurs significant financial loss. The injured individual, insurance carrier, attorney(s) or industrial manufacturer and user are all interested to confirm what went wrong – and who is liable. Resolution often depends on engineering analysis.

5/7/2015 · Corrosion
Clearly it is advantageous to know when corrosion is occurring in operating equipment to avoid future failure. There is extensive literature on this topic. This post is a brief summary of information selected from the four references cited below. Each source includes several other references.

4/7/2015 · Manufacturing
"3D printing" or the more descriptive term - additive manufacturing (AM) - has received much publicity in recent years. What is this technology and what are some of its practical features? This blog is a summary of AM and its on-going development to make actual service components using metal alloys. Presented are selected portions of information provided in the two references cited.

3/3/2015 · Corrosion
Most engineers know about the danger of galvanic corrosion caused by physical contact between dissimilar metals exposed to a corrosive liquid. However, this possibility is often overlooked and other features of this type of corrosion may not be widely known.

1/21/2015 · Failure Analysis
It is essential when beginning a root-cause failure analysis involving metallic materials to collect and maintain the as-found physical evidence properly prior to detailed examinations. This has two objectives. In all cases collecting and protecting the evidence in its undisturbed condition provides the best opportunity to derive meaningful good results from the subsequent analyses. Secondly, in a legal proceeding lack of attention to these matters can produce the accusation of spoilation of evidence. As a minimum this will cause presentation problems for the offending party in the suit. At worst such deficiencies by that party may cause the case to be thrown out.

12/12/2014 · Corrosion
Aluminum alloy materials are well known for their light weight and strength-to-weight ratios. They are also susceptible to several forms of corrosion. Relative to other metals, their natural electrochemical potential places them adjacent to other very susceptible (active) metals such as magnesium (Mg) and zinc (Zn) in a traditional galvanic series in seawater. However, Al alloys naturally form a very thin, protective (passive) oxide film on their surface when exposed to oxygen. This film prevents corrosion as long as it is maintained over the surface. Pitting corrosion is a common form of attack on aluminum. This is typically caused by exposure to halide ions, chloride ions being the most common type found in corrosive media, that breakdown the passive film at discreet spots. This permits pits to initiate and grow.

11/7/2014 · Metallurgy
Often when engineers consider mechanical fatigue they envision cyclic, reversing stresses in a spinning shaft or possibly the up and down flex of aircraft wings. Rolling contact fatigue (RCF) or the associated mechanical wear is an important, closely related process to the traditional mechanism of fatigue but with distinct differences. RCF is also often known as spalling.

9/25/2014 · Product Liability
This term raises some vital issues that the engineer should be aware of when using it. First several definitions are available and thus it is perceived differently by different groups and individuals. From a legal standpoint, in many states, using the term to describe a product that was involved in an incident involving an injury means that the designer or manufacturer of that product may be financially liable for the injury. Engineers sometimes use the term simply to indicate an imperfection in a product without intending its frequent legal use. Further the engineer realizes that no material and no finished product is perfect. However, these variations from perfection do not necessarily mean they were cause for failure and thus the injury that may occur in a given incident. Some product liability attorneys may not readily acknowledge or understand this distinction.

8/21/2014 · Corrosion
The optimal time to make decisions and take actions to minimize potential failures of equipment, facilities and components is during their design. This two-part blog post provides an overview of the types of issues involved and specific actions that can be useful to the design engineer. Archived blog posts (at www.dmme-engineering.com) that discuss specifics are provided parenthetically.

7/15/2014 · Metallurgy
Four, tri-lobe pumps were damaged and required extensive repair during the latter stages of construction for a modification in a pharmaceutical manufacturing plant. The economic loss was significant and the general contractor for the work paid the plant's owner for the loss. The renovated units were installed and are in use. However, the general contractor then sued one of its subcontractors - a welding contractor that fabricated and completed weld joints between piping sections on the inlet side of the pumps. The general contractor claimed poor quality welds in the piping permitted loosened weld fragments to enter the pumps during the required water flow verification of the system and this caused the damage.

6/9/2014 · Corrosion
Most realize that damage due to corrosion of metals is costly - but what specifically is that cost and what is included in the total? A study completed in 2002 sponsored by the Federal Highway Administration (FHWA), the National Association of Corrosion Engineers (NACE International) and implemented by CC Technologies Laboratories (now part of DVN) addressed those questions.

5/2/2014 · Corrosion
Material selection entails picking an engineering material - either metal alloy or non-metal - that is inherently resistant to the particular corrosive environment and also meets other criteria. Variables that will affect corrosion are established along with materials that may provide suitable resistance for those conditions. Obviously other requirements such as cost and mechanical properties of the potential materials must be considered.

3/28/2014 · Corrosion
Pin-hole leaks from a fire-control sprinkler piping system just above the false ceiling of multiple rooms in an office building resulted in a suit against three parties involved with supplying the system. The plaintiff - a financial service organization that owned the building - had much computerized transaction data stored on magnetic tapes in several rooms damaged or destroyed by the incident. The monetary loss was major. The leaks occurred within two years after the system was installed. This period is clearly far short of the expected life of the system. Defendants in the case included the supplier of the piping used in the system, the engineering firm that designed it and the installation contractor.

2/26/2014 · Corrosion
A variety of low-voltage electronic devices may fail to operate properly because of exposure to certain corrosive, gaseous environments. Susceptible items include consumer products such as microwave ovens, audio equipment, TV's and personal computers as well as many types of industrial sensors and automatic control devices. Failure generally occurs because of specific application factors. These include the severity of the environment, the presence or absence of atmospheric sealing of components within the device and the metals used at critical internal locations. Frequently complete failure doesn't occur but normal operation is erratic.

A full size, cylindrical tank trailer pulled by a truck tractor/ cab split open on its lower section at mid-span and released hundreds of gallons of hydrochloric acid (HCl) onto a secondary highway in a northeastern state. When this occurred the truck driver jumped out of the truck's cab and sustained acid burns to his ankles because he was wearing low-quarter shoes.

12/20/2013 · Failure Analysis
A severe personal injury incident occurred as a recreational fishing boat was approaching a dock at approximately 20 mph after a day on the water. The large outboard engine (75 HP) on the stern of the boat struck a fixed underwater obstruction, flipped into the boat while still running and amputated the hand of a passenger seated near the engine.

11/26/2013 · Engineering
A licensed professional engineer (P.E.) is required to adhere to a Code of Ethics for Engineers in all work he undertakes. However, there are some special criteria when employed as an expert witness.

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Edward E. Elson, MSME, MA MANGT
President
4356 E Claytor Circle
Anaheim CA 92807
USA
phone: 714-974-1264
fax: 714-974-0148
Edward E. Elson has over 40 years of Engineering Experience including research and development, design, manufacturing and management activities in the Medical Device, Packaging, Toy, Consumer Product, and Aerospace Industries. He holds 30 U.S. Patents, 27 in the medical device field.

EDUCATION:
  • Adobe Illustrator: North Orange County Regional Occupational Program
  • SolidWorks 3D Design: Orange Coast College, Costa Mesa, CA
  • Graphics Design: University of California, Irvine, C
  • MA Management Peter Drucker School of Management: Claremont Graduate School, Claremont, CA
  • MS Mechanical Engineering: (Bio-Medical Minor) University of Southern California, Los Angeles, CA
  • BS Mechanical Engineering (Deans List): Drexel University Philadelphia, PA
ORGANIZATIONS:
  • Member, Society of Plastic Engineers
  • Institute of Packaging Professiona
  • Member and former Board Member, Forensic Expert Witness Association (Orange County, CA)
  • Former member of AAMI Standards Sub-Committees: Human Factors for Medical Devices, IV Catheters, Humidifiers & Nebulizers
AREAS of EXPERTISE:
  • Product Design
  • Patent Infringement, Validity, Trade Marks
  • GMPS, Labeling, Packaging for Medical Devices
  • Syringes, Needles, Catheters
  • Thermal Heating, Thermal Cooling Devices
  • Laser / Thermal Hair Removal Devices
  • Dermal Abrasion Equipment
  • Costume Jewelry
  • Patient Transport Gurneys
  • Patient Walkers, Gait Trainers, Design, Labeling
  • Surgical Staplers
  • Surgical Fluid Warmers
  • External and Implanted Drug Delivery Devices, IV Pumps
  • Failure of Implanted Hip and Spinal Prosthesis
  • Performance and Failure of Pedicle Screws
  • Valuation of Prototypes
  • Valuation of Medical Devices, Equipment, Consumer Products
  • Labeling and Packaging
  • Chiropractic Devices
  • Dental Burr and Drill Failures
  • Defective Seating
  • Exercise Equipment, Pilates Devices
  • Injection Molded Plastic Components
  • Drug Container Packaging
  • Defibrillator Design Issues
  • Shipping Carton Integrity
  • Manufacturing and Assembly

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    Paul D. Terpstra, PE
    Wisconsin USA
    phone: 608-346-2392
    Paul D. Terpstra, PE, is a Mechanical Engineer who provides forensic engineering litigation support services. He has over 30 years of experience in Mechanical Design, Programming, Electrical Design, and Troubleshooting of Automated Machinery. He applies his Root Cause Analysis skills to reconstruct events and mitigate the consequences of accidents and failures which give rise to insurance claims and sometimes legal action.

    Mr. Terpstra served as Director of Research & Development for Gilman Engineering & Manufacturing, a major supplier of custom assembly equipment, before founding Innalytical Solutions Inc. He has designed equipment used by major manufacturing companies such as Ford, GM, GE, Potter & Brumfield, Borg Warner, Caterpillar, Siemens, and Rolls Royce. He has been granted six United States patents, three foreign patents, and has two additional US patent applications pending.

    Mr. Terpstra's expert witness services are available to insurance companies and attorneys.

    Areas of Expertise:
    • 3D CAD (SolidWorks CSWP)
    • Machine Design
    • Finite Element Analysis (FEA)
    • Mechanical Design
    • Control System Design
    • Mechatronic Design
    • Motion Control
    • Linear Servos
    • PLC Programming
    • Motion Programming
    • Forensic Engineering
    CNC Programming
  • Vision Inspection
  • Problem solving / Trouble-shooting
  • Machinery Repair
  • Control System Upgrades
  • Control System Retrofits
  • CNC Retrofits
  • Automation
  • Assembly Processes
  • Project Management
  • Failure Analysis
  • View Paul Terpstra's Consulting Profile.
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    Allise Wachs, Ph.D.
    P.O. Box 251652
    West Bloomfield MI 48325
    USA
    phone: 248-421-7590
    fax: 248-539-3858
    Allise-Wachs-Statistics-Product-Liability-Expert-Photo.jpg
    Allise Wachs, Ph.D. has 25 years of experience in the application of Statistical Methods to optimize product designs and manufacturing processes and to assess Product Liability Risk. Dr. Wachs is an expert in the control of manufacturing systems. Her research includes the development of mathematical models to reveal optimal decision sequences.

    The President of Integral Concepts, Inc. and former managing scientist for Exponent Failure Analysis Associates in risk assessment and product litigation, she assists engineers and scientists in the application of statistical and optimization methods to reduce the time and cost to develop new products. She also helps to resolve complex engineering and manufacturing problems quickly and thoroughly.

    Dr. Wachs provides Root Cause and Process Failure expert testimony in the areas of product quality and reliability, product design, manufacturing, probability, and statistical issues. In addition to outstanding credentials and industry experience, her ability to communicate and connect with juries distinguishes her from other technical experts. She has successfully presented highly technical results to juries in a manner that they can understand and appreciate.

    Areas of Expertise:
    • Designed Experimentation
    • Reliability Analysis
    • Warranty Estimation
    • General Statistical Methods
    • Statistical Process Control
    • Measurement System Assessment
    • Stochastic Optimization
    View Dr. Wachs' Consulting Profile.
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    Kurt D. Humphrey
    Managing Director, Principal Technologist
    3780 Masters Drive
    Colorado Springs CO 80907
    USA
    phone: 719-331-9788
    Kurt-Humphrey-Intellectual-Property-Expert-Photo.jpg
    Kurt D. Humphrey has over 30 years of commercial Microelectronics and High-Tech Materials Design and Process Development, Corporate R&D Project Management, Reverse Engineering / Failure Analysis, and Patent / SME Consulting experience. With access to the best research tools, databases, labs and test equipment available, he is able to solve the most complex Intellectual Property technology issues.

    An accomplished inventor, Mr. Humphrey holds patents in the areas of oxygen sensors, MEMS, and semiconductor process technology as a result of his innovative work with General Motors Corporation, United Technologies, and Rockwell Science Center. Before launching his own IP and patent technical consulting business, he served as Director of Engineering Programs at TAEUS International managing numerous patent evaluation and product investigation projects for several Global 25 high-tech companies in the U.S., Europe, Japan, and Korea.

    Litigation Support - Kurt Humphrey offers forensic engineering and SME services to attorneys representing both Plaintiff and Defendant. His expertise is called upon for infringement litigation, IPR/PGR petitions and responses, expert reports and testimony, prior art, invalidity and FTO searches, product investigations and reverse engineering, claim charting and proof packages, and failure analysis.

    Mr. Humphrey's expert witness experience includes infringement analysis, expert reports, and testimony on behalf of Hewlett-Packard in an ITC patent infringement case, HP v. Acer, involving microprocessor architecture and operation, and failure / forensic analysis and expert trial testimony for the Houston Rockets (Plaintiff) in the LED lighting product failure / liability case, Clutch City Sports v. iLight Technologies in 2012.

    Areas of Expertise:
    • Advanced Wireless and Cellular Telecommunications Networks
    • Micro / nano-electronics, Ics, MEMS, Sensors, Imagers, Photovoltaics, LEDs, Packaging
    • Automotive Electronics and Systems, Smart Batteries
    • Flat Panel Displays: LCD / LED / OLED / E-ink, Plasma, and LED
    • Mobile Devices: Smartphones, Tablets, GPS, Wearables, etc.
    • Networks and Storage, Optical Networking, Opto-electronics /Photonics
    • Silicon and III-V Integrated Circuits/Devices: Digital, Analog, Mixed Signal, DRAM and NV Memory, Microprocessors, Smart Power
    • Biomedical Devices
    • Chemicals, Organic and Inorganic Technical Materials: Bulk, Films, and Coatings
    View Kurt Humphrey's Consulting Profile.
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    Leonard J. Backer
    President
    16463 N.E. 33rd Avenue
    North Miami Beach FL 33160
    USA
    phone: 305-409-9092
    Leonard-Backer-Furniture-Industry-Expert-Photo.jpg
    Leonard J. Backer has over 28 years of extensive and successful Seating, Tables and Furniture Industry experience in all key areas. Mr. Backer has been directly involved in the design and development of 250+ seating and table collections. He specializes in Private Label Manufacturing, Sourcing, and Product Development expertise.

    Mr. Backer provides aggressive Expert Witness and Litigation Support services to attorneys, insurers and businesses for Plaintiff or Defense. He performs site inspections, detailed product reviews and incident analyses. He has worked with law firms and insurance companies to develop and coordinate strategies for various types of legal actions and lawsuits. Very strong hospitality background.

    Mr. Backer has extensive experience with hotel, restaurant, cruise ship, retail store and senior living incidents. Personal Injury and Product Liability Cases. He provides detailed analyses, written opinions, and expert witness reports for clients throughout the U.S. Strong proven deposition and court testimony.

    Areas of Expertise:
    • Furniture Based Disputes, Claims, or Legal Actions
    • Chair Failures
    • Seating Product Liability
    • Personal Injury
    • Purchasing Disputes
    • Seating Product Design / Performance Issues
    • Design Knockoffs
  • Sales Rep. Commission Disputes
  • Designer Royalties
  • Exclusive Distribution Agreements
  • Product Evaluation
  • Warranty Issues
  • Product Launch Failures
  • Private Label Development Agreements
  • Evaluation of Management Performance
  • View Leonard Backer's Consulting Profile.
    6/4/2015 · Design
    Basic but very important points which could help minimize owners' liability and financial exposure to accident and personal injury claims on their premises.

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    James M. Miller, PE, PhD
    Founder
    2392 Fuller Court
    Ann Arbor MI 48105
    USA
    phone: 734-662-6822
    fax: 734-747-9712
    Miller-Engineering-Logo.jpg
    The experts at Miller Engineering are Ann Arbor based professional engineers celebrating 30 years of service to University, Government, Insurance, and Industry through research, publications, presentations, and testimony. Miller Engineering has a staff of engineers and experts in the Mechanical, Chemical, Agriculture, Industrial, and Human Factors fields of engineering with specific knowledge in the following areas:

    Vehicles
    • Car/Truck Accident Reconstruction
    • Crash Data Retrieval (CDR)
    • Visibility & Reaction Time Analysis
    • Tires, Trailers, Brakes & Accelerators
    • Truck/Off Road Vehicle Egress/Ingress
    • Traffic Signing and Construction Zones
    Mechanical & Electrical Safety
    • Product Safety & Analysis
    • Machinery - Metal, Wood, Plastic Molding
    • Machine Guarding & Safety, Robots, Automation
    • Hazard and Risk Analysis
    • Employee Safety Procedures – OSHA
    • Electrical Distribution & Transmission Hazards
    Warnings & Instructions
    • Warning Labels & User Manual Design
    • Hazard Analysis & Product Label Designs
    • Medical Device & Drug Warnings & Instructions
    • Inadequate Warnings Analysis
    • Standard Compliance (ANSI Z535)
    • Product Recall Information & Strategies
    Chemicals Safety & Labeling
    • NEW OSHA HAZCOM (2012) & GHS Review
    • MSDS, SDS and Product Label Compliance
    • Toxic Torts - Asbestos, Benzene, Lead, Diacetyl, Carbon Monoxide
    Chemical Exposures & Workplace Safety
    • Chemical Inhalation, Ingestion, Dermal Contact
    • Contamination - Water & Environmental
    • Manufacturing & Process Line Accidents
    • Slips, Trips, Falls & Entanglements
    Fires & Explosions
    • Cause & Origin Investigations
    • Gas, Vapor, & Electrical
    Agriculture
    • Tractor & Equipment Accidents
    • Chemical Applications & Exposures
    • Crop Storage & Harvesting Accidents
    • Pesticides
    Construction
    • Vehicle Visibility Accidents
    • Slip, Trip, & Fall Accidents
    • Power Tool Repetitive & Immediate Injuries
    • Scaffolding - Cranes - Hoisting - Fork Lifts
    Consumers/Household Safety
    • Appliances & Tools
    • Child Furniture, Choking, Playgrounds
    • Swimming Pools & Exercise Equipment
    • Recreation - ATV, Boats, Bicycles, Boards
    • Ladder, Stair, Step and Railing Accidents
    • Slip, Trip, & Fall Accidents
    Insurance Subrogation & Forensics
    • Accident Investigations
    • Electrical & Fire Causation
    • Chemical Leakage Damage
    • Defective Equipment Injuries
    • Premise and Process Damages
    James Miller Mechanical Engineering Expert PhotoJames M. Miller, PE, PhD – Founder

    Dr. Miller is an Emeritus Engineering Professor at the University of Michigan and a registered professional engineer and consultant with over 30 years of experience as an engineering expert witness. He specializes in warnings, labeling and instruction manuals, consumer product design, machine guarding, process safety, fire science, vehicle visibility, tractor egress/ingress, pedestrian and worker slip and fall prevention, COF testing, recreational vehicle safety (boats, ATVs and personal watercraft), compliance with occupational safety and consumer safety standards (OSHA, MSDS, ANSI, ASTM, UL, CPSC).


    Mark Lehto Engineering Expert PhotoMark R. Lehto, PhD – Co-Founder

    Dr. Lehto is a Professor of Engineering at Purdue University. He specializes in knowledge engineering, warnings and instructions, structuring expert systems, accident modeling, accident statistical analysis, consumer product safety, boating safety, in-field national surveys of product usage and product information effectiveness.




    Bradley Cook Mechanical Engineering Expert PhotoBradley T. Cook, PE – Managing Engineer

    Bradley is a registered professional engineer and consultant with extensive experience in accident reconstruction. He specializes in vehicular accident reconstruction and has investigated hundreds of vehicle accidents involving cars, trucks, pedestrians, bicyclists, motorcycles, etc. Bradley also has experience in product safety and hazard analysis; occupational safety and health (OSHA) compliance; pedestrian and worker slip and fall prevention; investigation and reconstruction of industrial and consumer product accidents. He holds a Bachelor of Science in Mechanical Engineering from the University of Michigan and is currently pursuing a Masters of Science in Engineering with a concentration in Biomedical from Purdue University.
    Mark R. Lehto & Steven J. Landry
    Introduction to Human Factors and Ergonomics for Engineers, Second Edition presents and integrates important methods and tools used in the fields of Industrial Engineering, Human Factors and Ergonomics to design and improve jobs, tasks and products. It presents these topics with a practical, applied orientation suitable for engineering undergraduate students.
    Mark R. Lehto, Steven J. Landry & Jim Buck
    Emphasizing customer oriented design and operation, Introduction to Human Factors and Ergonomics for Engineers explores the behavioral, physical, and mathematical foundations of the discipline and how to apply them to improve the human, societal, and economic well being of systems and organizations.
    Mark R. Lehto & James M. Miller
    James M. Miller, Mark R. Lehto & J. Paul Frantz
    James M. Miller, Mark R. Lehto
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    D. Larry Dunville
    See Multiple Addresses Below
    AZ, MI USA
    phone: 574-210-8612
    Overhead-Crane-Consulting-Logo.jpg
    Dennis Dunville Overhead Crane Expert PhotoD. Larry Dunville has over 35 years of Overhead Crane experience. Mr. Dunville has built, installed, engineered, estimated, sold and serviced overhead bridge cranes. He has sat on the industry committees that wrote the crane specs for the steel industry, written articles, and taught professional architects and engineers about the special requirements to be aware of when designing buildings that will house overhead cranes.

    In the early 90's, Mr. Dunville lead the effort to become one of the first cranes builders in the US to attain ISO9001 certification, which lead directly to Dearborn Crane and Engineering winning the Indiana Governor's Quest For Excellence Award and the Indiana University Kelly School of Business Growth 100 two consecutive years.

    Business Experience - Mr. Dunville served as the Owner/President of Dearborn Crane & Engineering Co., a builder and installer of overhead cranes and crane runway systems, from 1975-2012. He was also the former Owner/President of Xcel Computer Systems, a CAD/CAM systems integrator. Mr. Dunville is currently the Owner/President of Digital Industrial Marketing, LLC (2014 to present) and Overhead Crane Consulting, LLC (2016 to present).

    D. Larry Dunville's Video Introduction


    Litigation Support - Larry Dunville offers expert witness services in crane cases involving industrial, manufacturing, and warehousing facilities, as well and power plants. His expertise is available to counsel representing both Plaintiff and Defendant.

    Areas of Expertise:
    • Overhead Cranes
    • Bridge Cranes
    • Overhead Traveling cranes
    • Electric Overhead Traveling Cranes
    • Overhead Bridge Cranes
    • Gantry Cranes
    • Jib Cranes
    • Workstation Cranes
    • Hoists
    • Crane Operator Training
  • Monorails
  • Crane Runways
  • Crane Safety
  • Crane Inspection
  • Crane Manufacturing
  • Crane Installation
  • Crane Runway Installation
  • Crane Fabrication
  • Runway Fabrication
  • OSHA Crane Inspections
  • Corporate Crane Safety Programs
  • Overhead Crane Arizona Office
    3606 N. Larrea Lane
    Tuscon, AZ 85750
    Telephone: 574-210-8612
    Overhead Crane Michigan Office
    12666 Highland Shore Drive
    Sawyer, MI 49125
    Telephone: 574-210-8612


    View D. Larry Dunville's Consulting Profile.
    6/15/2016 · Construction
    You have a shiny new building with a shiny new crane and everything looks great. For some reason, though, the crane won't clear the building columns, even though the contractor and the crane manufacturer are saying everything is to spec and it's not their problem. Common sense says somebody is wrong and that somebody should have to pay (because it's going to cost a bundle).

    5/10/2016 · Construction
    It is absolutely critical in the evaluation of a legal case involving cranes, to determine what type crane is involved. The word "Crane" is a generic term that covers virtually anything that lifts with a hook, but each crane type is a whole different industry with different industry associations (which compile the industry product specifications), different governing specification and different OSHA requirements. As a matter of fact, some cranes don't even have hooks!

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    Matthew Roetter
    President
    PO Box 1506
    Hayden ID 83835
    USA
    phone: 208-704-4339
    fax: 208-772-4650
    Matthew-Roetter-Window-Door-Expert-Photo.jpg
    Matthew Roetter has approximately 16 years of experience working in the Fenestration Industry. He provides services nationally and internationally to consumers, attorneys, insurance companies, architects, contractors, and manufacturers.

    Mr. Roetter's fenestration work history includes sales, manufacturing, installation, marketing and service of Pella windows, Hurd windows, Kolbe & Kolbe windows and custom wood curved windows and moldings. He spent much time in the field working closely with architects, building contractors and consumers regarding the proper installation and service of fenestration products. He also has a very unique experience in that he designed and manufactured custom curved wood windows and curved wood moldings, therefore he has a perspective of correct design, manufacture and installation of fenestration products.

    Litigation Support - Mr. Roetter is the foremost fenestration expert in the United States based on the number of his class action cases and his 19 years of experience as an expert witness. He has been retained as an expert or consultant for counsel representing both Plaintiff and Defendant and has never been disqualified.

    Typically he is hired to determine if design, manufacturing, installation, or maintenance defects are the causation of damages.

    Mr. Roetter provides product liability and fraud investigations, forensic analysis of fenestration components, personal injury investigations, and criminal and civil investigations. His services include site inspection, report writing, destructive analysis of fenestration components, case investigation, and expert witness testimony when necessary. Mr. Roetter employs university laboratories to support his opinions.

    For over three years, Mr. Roetter has served as a member of the Idaho Board of Medicine Medical Malpractice Prelitigation Panel. Before a doctor or medical care provider can be sued in an Idaho Civil Court, the case must first be heard by the Prelitigation Panel.

    Recent Cases:
    • Water Infiltration
    • Premature Wood Rot
    • Sealant Failure
    • Seal Failure
    • Personal Injury
  • Inert Gas Loss
  • Manufacturing Defects
  • Design Defects
  • Installation Defects
  • Maintenance Defects
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    Robert Adams, PhD, PE
    48597 Hayes Rd
    Shelby Twp. MI 48315
    USA
    phone: 866-931-8568
    Tribis-Engineering-Logo.jpg
    Robert Adams Mechanical Engineering Expert PhotoRobert Adams, PhD, PE is a Mechanical Engineering professional with extensive experience in Plane Bearing Technology and the design of Automated Test Systems. Dr. Adams has broad and in-depth knowledge of automated transfer systems design, R&D procedures and quality manufacturing processes. He has particular skill with Tribology, analytical testing, and CAD systems.

    Dr. Adams is noted for the creation of Tribis’ TS-01D which incorporates a state of the art, ultra-sensitive in-situ measurement system coupled with proprietary machine automation and control logic. The prototype for this machine was used successfully in his research, usually completing up to 100 PV test permutations within a 24 hour period.

    Prior to founding Tribis, Dr. Adams was an accomplished machine automation engineer. He focused on designing, building, and installing custom production machinery before retiring in 2008 from his senior leadership position at Welker Bearing Company.

    Dr. Adams provides litigation support services to attorneys for both Plaintiff and Defense. He has broad experience with technological writing, public speaking, and delivering complicated presentations to lay persons in a clear and concise manner. Presently, an Adjunct Professor of Engineering at Oakland University in Rochester, MI, where he teaches both a graduate and undergraduate course: "Introduction to Lubrication, Friction, and Wear: Tribology."

    Areas of Expertise:
    • Tribology
    • Machine Design
    • Bearing Design
    • Hydraulic Circuit Design
    • Pneumatic Circuit Design
    • Experimental Stress Analysis
  • Digital Speckle Pattern Interferography
  • Shearography
  • Digital Holography
  • Plastics & Plastics Processing
  • Bearing Composites
  • Tribological Nano-Composites
  • Major Achievements and Patents:
    • Professional Engineer, State of Michigan, License No. 3763
    • Professional Engineer, State of Florida, License No. 77351
    • NCEES Record No. 56277
    • Certified Open PLC Engineer
    • Inventor, Tribometer, US and European Patents Pending
    • Co-Inventor, Synchronizing Cylinder, US Pat. No. 6,408,736
    • Co-Inventor, Three Position Cylinder, US Pat. No. 6,408,740
    • Co-Inventor, Pin Clamping Device, US Pat. No. 6,786,478 & 6,913,254
    • Inventor, Rod Locking Device, US Pat. No. 7,594,565
    • Tribometer, US Patent Pending
    • STLE Detroit Section Scholarship 2008
    • SAE E. Wayne Kay Graduate Scholarship 2007
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