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Tree Accidents (Stands) Expert Witnesses: 3
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
- Design Defect Analysis
- Structural Analysis of Buildings
- Product Liability Investigations
- General Engineering Injuries and Issues
- Industrial safety
- Engineering Continuing Education
- Product Certification
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. He has taught Safety Engineering and Ergonomics in the Industrial Engineering Department at CSU-Pueblo since 1999.
A member of the Human Factors and Ergonomics Society and the American Industrial Hygiene Association, Dr. Purswell also served as the 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.
Litigation Support - An Expert Witness in the legal industry since 1997, Dr. Purswell 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. His 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:
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:
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