expert witnesses
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Power Tools Accidents Expert Witnesses: 7
Parent Category:
Patent Mechanical Engineer Product Liability Expert Witness David Smith
David Smith
Vice President
111 W. Canyon Crest Road
Alpine UT
84004
USA
phone: 801-763-8484
fax: 801-763-5755

David Smith is an experienced mechanical engineer (MS, PE) with seven issued patents. Award-winning inventor. Vice President of Alpine Engineering and Design, a mechanical engineering consulting company with clients around the United States ranging from individual inventors to Fortune 500 companies. Worked on the development of multiple successful products including among other things: aerial lifts, garbage trucks, thrill rides, ziplines, trailers, oil and gas equipment, exercise equipment, manufacturing equipment, and multiple consumer products.
Graduated Cum Laude with a bachelor's degree in mechanical engineering. Completed a master's of science degree in mechanical engineering and an MBA with an emphasis in product development. Licensed professional engineer (PE) and certified safety professional in comprehensive practice (CSP). Certified trainer for boom lifts, scissor lifts, rough terrain, and counterbalanced forklifts. Over 10 years of experience in product development, patents, equipment safety, and risk assessments.
Experienced expert witness having drafted over 200 reports/declarations in patent cases and catastrophic injury and death cases. Designed and built multiple custom testing devices to obtain data and evaluate opinions. Created multiple demonstratives to explain the mechanics and circumstances of accident sequences and patented devices. Testified in deposition 11 times and in trial once.
Expert Witness Services
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Mechanical Engineering Product Liability Expert Witness John Ryan
John L. Ryan, BSME, PE
Business Headquarters:
PO Box 7
Poncha Springs, CO 8142
Offices in: CO, AR
81242
USA
phone: 855-627-6273

John L. Ryan, BSME, P.E. is a Mechanical Engineer who provides general Mechanical and Structural Engineering expertise. Mechanical and Safety Engineering (MASE) provides full service analysis and accident reconstruction of products involved in accidents.
Mr. Ryan's services have been requested for attorneys and insurance companies needing forensic engineering expert witness testimony to determine whether machinery and products involved in injury cases were adequately designed or whether they have a Design, Manufacturing, or Material Defect. All products are lab-tested on site to determine adherence to industry standards and engineering design protocol. Alternate preventative designs are developed when none exist commercially.
Mr. Ryan is available for both Plaintiff and Defense, depending on the individual case. His services include producing high quality reports and visual aids in the courtroom such as scale models to help explain accident scenarios and alternate designs to judges and juries.
Areas of Expertise:
- Accident Investigation and Reconstruction
- Machine Guarding Accident Investigation
- Climbing Gym Accidents
- Belay Device Failure
- Rock Climbing Accidents
- Fall Protection Failures
- Ladder Failure Investigation
- Tree Stand Failures
- Industrial Accidents
- Power Press Accidents
- Connection Failures
- Bolt Failures
- Weld Failures
- Testing Products to Industry Standards to Determine Compliance
- Design Defect Analysis
- Structural Analysis of Buildings
- Product Liability Investigations
- General Engineering Injuries and Issues
- Industrial safety
- Engineering Continuing Education
- Product Certification
Forensic Engineer Expert Dr Rasty
Prof. J. Rasty, Ph.D., PE, MBA, CFEI, CFII
Founding President & CEO
2309 19th Street
Lubbock TX
79401
USA
phone: (806) 368-9811
fax: (806) 368-9812

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 Areas of Expertise Include:
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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. Degrees 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
OSHA Safety Construction Expert Witness Greg Gerganoff
Greg Gerganoff, CSP, Esq.
Certified Safety Professional
Denver, CO
All States USA
phone: 303-330-4616

Greg Gerganoff, CSP, Esq., possesses extensive experience in safety compliance and practice involving OSHA and MSHA. He obtained is law degree from Western Michigan University, Cooley Law School and practiced general civil law for approximately 12 years in Colorado prior to entering the safety profession. Mr. Gerganoff earned a Certified Safety Professional certification and has 18 years of field safety experience in mining, oil and gas, construction, manufacturing, power plant outages, and light rail construction.
His professional safety experience includes OSHA / MSHA Safety field work and compliance 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.
- Authorized Outreach Trainer for OSHA General Industry.
- PEC Safeland Basic and Core instructor (Oil and gas).
- MSHA Approved Instructor (Blue Card) for Surface, Metal/nonmetal.
- Member of the American Society of Safety Professionals.
Litigation Support: Mr. Gerganoff assists with discovery questions regarding safety matters. Safety opinions based upon statutory, administrative, judicial rulings and related industry association safety policies ancillary to OSHA and MSHA. Mr. Gerganoff is retained by attorneys for both Plaintiff and Defendant. Some of the subject matter litigation he has handled include:
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Construction Safety Expert Witness Michael Lawler
Michael P. Lawler, MS, CSP, CHST
PO Box 733
Orland Park IL
60462-1482
USA
phone: 312-254-6553

Michael P. Lawler, MS, CSP, ASP, CHST, is a Construction Safety Expert with over 30 years of experience. He offers a unique combination of formal education and "project based" technical experience working on some of the largest construction projects in the United States.
Litigation Support - Mr. Lawler's experience includes over 50 OSHA inspections and associated negotiation and defense preparation related to OSHA citations. His background allows him to opine on OSHA Standards and Contract Responsibility with a demeanor of care and confidence.
Mr. Lawler is an expert at applying OSH Act of 1970 standards, CFR 1926 & 1910 regulations, policies, construction industry practices, contract responsibility, incident investigation, and accident reconstruction. Mr. Lawler analyzes how post incident details and investigations should be completed and who is responsible per the OSHA Standard and construction industry practices. He is experienced in personal injury, catastrophic injury, and fatality cases.
Areas of Expertise:
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Metallurgy Design Engineering Expert Witness Thomas Caldwell
Thomas W. Caldwell, PE
Bedford NH
03110
USA
phone: 608-345-3050
fax: 603-488-1765

Mr. Caldwell has designed and manufactured components for consumer and industrial products, including safety-critical applications such as aircraft landing gear brakes, seat belt lockup devices, windshield wiper, and window lift motor systems. He has experience creating and guiding technology development and manufacturing partnerships in Europe and Asia, licensing and selling intellectual property and creating supply chains in China.
Mr. Caldwell has lectured in the USA, Germany, Switzerland, and India on manufacturing premium quality metal products and manufacturing processes, and was a technical paper peer reviewer for 20 years for the Society of Automotive Engineers. A United States patent holder, he has published peer reviewed research in electrochemistry and materials processing, and has written and spoken numerous times on the subject of Materials Selection.
Litigation Support - Thomas W. Caldwell, PE, is a testifying and consulting expert for both plaintiff and defense counsel. His cases involve product failure for ferrous and non-ferrous alloy products such as hand tools, recreational and exercise equipment, fire fighting apparatus, rotating industrial machinery, construction hardware, piping, and lighting fixtures. Mr. Caldwell utilizes destructive and non-destructive methods for insuring product integrity.
Areas of Expertise:
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Mechanical Engineering Expert Witness Bransford Pickett
Bransford Pickett, PE
PE Mechanical Engineering
1356 Santa Olivia Road
Chula Vista CA
91913
USA
phone: 619-977-7693
fax: 619-781-8752

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
Featured resources
by Ray Turner, EdD
by Harry A. Milman, PhD
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