Jeffery H. Warren, PhD, PE, CSP is Chief Engineer and CEO of The Warren Group. A licensed professional engineer in 14 states, he holds a Bachelor of Science in Mechanical Engineering from the University of North Carolina as well as a Master of Science and a Doctorate in Mechanical Engineering from Virginia Polytechnic Institute and State University — all with machine design emphasis.
Background Experience - A former research engineer for DuPont at the Savannah River Laboratory, Dr. Warren designed, patented, and built an incinerator to burn radioactive waste. He also taught mathematics and engineering at the University of South Carolina in Aiken. Later, Dr. Warren was chief machine designer and owner of Warren Engineering Company, Inc., which designed and built special machinery for manufacturing automation. He combined his passion for keeping people safe with his knowledge of mechanical engineering, machine design, risk assessment, and safety to pursue a career in forensic engineering.
Dr. Warren is a Certified Safety Professional in engineering aspects and a Certified Fire and Explosion Investigator. He has investigated more than 2,000 claims involving property damage and injuries related to machinery, equipment, and products since 1987. Dr. Warren is a court-qualified expert in mechanical engineering, machine design, risk assessment, and safety. He’s also testified in several hundred depositions and more than 75 trials in state and federal court. He has successfully passed Daubert challenges. Dr. Warren was on the committee that authored the ANSI Technical Report, ANSI B11.TR3-2000 entitled, “Risk Assessment and Risk Reduction – A Guide to Estimate, Evaluate and Reduce Risks Associated with Machine Tools.” He regularly investigates personal injury and wrongful death product liability claims as well as property damage claims involving machinery and equipment in both manufacturing and construction workplaces for both the plaintiff and the defense. He has a reputation for thoroughly analyzing each case to provide precise, understandable, fact-based opinions.
Dr. Warren has a way of making complicated mechanical engineering, machine design, risk assessment and safety concepts understandable to the ordinary person. He also presents classes and seminars on topics ranging from investigation of machinery and equipment, unintentional injury claims, subrogation and SAFETYTHROUGHDESIGN®.
Areas of Expertise:
John Phillips, PE, CFEI, Senior Consulting Engineer, has more than 30 years of Crane and Heavy Equipment experience and more than 20 years of experience in forensic engineering. In addition to holding a Bachelor of Science degree in Mechanical Engineering from the University of South Carolina, Mr. Phillips is a Licensed Professional Engineer in South Carolina, North Carolina, Georgia, Louisiana, Ohio and Minnesota. He is NCEES registered both as a model engineer and with The United States Council for International Engineering Practice. During his career, Mr. Phillips has designed crane systems, supervised installation, tested and certified lifting equipment even serving as a project engineer for maintenance and certification of nuclear weapon lifting and handling systems. His extensive experience helps him determine the cause and scope of damage for crane, hoist, and other lift equipment incidents. In addition, he’s a certified Fire and Explosion Investigator and a certified Fire Investigator Instructor by the National Association of Fire Investigators.
Mr. Phillips is adept at determining the origin, cause, and scope of damage for equipment and structural fires. He also evaluates consumer and industrial equipment for product defects, guarding, and safety issues. He has testified in depositions and trials in state and federal court. Mr. Phillips is a member of the International Code Council (ICC), American Society of Materials (ASM) and the American Society of Testing and Materials (ASTM), as well as a voting member of the ASTM Performance of Buildings, Forensic Sciences, Forensic Engineering, and Ships & Marine committees.
Areas of Expertise:
|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...
|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
Overhead Crane Consults, LLC, is an overhead crane consulting company. Although they do not build cranes or have any affiliation with crane builders, they help level the playing field between an inexperienced buyer and a very experienced seller. Overhead Crane Consults has extensive experience with Overhead Bridge Cranes, Gantry Cranes, Jib Cranes, Hoists, Monorails, and Crane Runway Systems. Services Include:
D. 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.
D. Larry Dunville's Video Introduction
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). Dennis Dunville is a regular public speaker for training sessions to professional and trade groups. He taught the overhead crane portion of the OSHA 10 & 30 hour course for Northern Indiana NIOSHA office and overhead crane design classes to dozens of architect, engineer, and contracting firms. Mr. Dunville is a member of the AISE/AIST committee's #6 & #13 that wrote the overhead crane specs and the specs for metal buildings with cranes, for the US Steel industry and currently publishes crane installation, crane safety, and crane control articles for industry trade journals.
Larry is the former Executive Director of the Crane Certification Associaiton of America and a member of ASME/ANSI B30.2 Overhead and Gantry Cranes Committee that writes the specs for the US crane industry.
|Overhead Crane Arizona Office|
3606 N. Larrea Lane
Tuscon, AZ 85750
|Overhead Crane Michigan Office|
12666 Highland Shore Drive
Sawyer, MI 49125
Joseph Quinn, MS, PE, is a Forensic Metallurgy and Metallurgical Engineering consultant. Mr. Quinn is a Registered Professional Engineer in 5 states and has provided over 1,000 Failure Analysis investigations on metallic and non-metallic (glass, plastic, rubber, and composite) materials or products. Mr. Quinn provides metallurgical and materials consultation, expert witness testimony, and forensic failure analysis for civil litigation with retentions by defendants and plaintiffs, insurance claims, and industrial failures. He has received awards in the International Metallographic Contest and has conducted several presentations on metallurgical engineering and failure analysis subjects at universities, ASM meetings, and industry events; and is active in technical societies and committees.
Product Area Failure Expertise:
A Registered Professional Engineer, Mr. Terpstra has more than 35 years of experience in engineering designs and solutions. Mr. Terpstra has extensive experience in automated equipment. As president of Klover Products, he oversees the development of products for the broadcast industry and beyond. As president of Innalytical Solutions, he focuses on consulting service relating to industrial equipment. Mr. Terpstra has been awarded 11 U.S. patents for industrial equipment, manufacturing processes, and broadcast equipment. His designs have been used by many major manufacturers, including GM, GE, Ford, Rolls Royce and Caterpillar. These designs have been featured in Machine Design, Design News, Automotive News, Production and HD Pro Guide magazines. Mr. Terpstra has served as an expert witness on multiple cases as well as provided forensic engineering services. He is an experienced report writer, a certified SolidWorks Professional, and certified in fire investigation.