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Featured researches published by David A. Weitzenhof.


1974 Automotive Engineering Congress and Exposition | 1974

The Production HELP Bumper: Evolution, Testing, and Evaluation

Jack E. Gieck; David A. Weitzenhof; Mark S. Prichard; Floyd M. Smith

A High Energy Level Pneumatic (HELP) bumper system, designed to fit all transit coaches presently made by prime bus manufacturers is presented. It is adaptable for retrofit to older coaches. Vehicle tests have demonstrated 6 mph barrier crash capability and 10 mph collisions into pre-1973 passenger cars with no damage to bus or HELP bumper. Collisions with a 1974 passenger car at speeds to 8.5 mph resulted in no damage to either vehicle.


Archive | 1987

Ultrasonic air spring system

Wayne H. Geno; David A. Weitzenhof


Archive | 1988

Air spring suspension system with dual path isolation

David A. Weitzenhof


Archive | 1987

Air spring suspension system

Wayne H. Geno; David A. Weitzenhof


Archive | 1989

Clamp ring assembly for air spring

Keith E. Hoffman; Wayne H. Geno; David A. Weitzenhof


Journal of the Acoustical Society of America | 1983

Semi-pneumatic energy absorbing bumper system for motor vehicles

Thomas A Bank; Jack E. Gieck; David A. Weitzenhof


Archive | 1999

Device to encapsulate a substrate containing sensitive electronic components and a pressure sensor pack

Russell W. Koch; Walter Tomaszewski; David A. Weitzenhof


Archive | 1996

Vibration damping device using ER fluids having multiple electrodes

John D. Rensel; David A. Weitzenhof


Archive | 1996

Splined vibration damping device using ER fluids

David A. Weitzenhof; Isao Watanabe; Carmen S. Santa Maria; William S. Niaura; Gareth H Mckinley


Archive | 1984

Dual trailing arm vehicle suspension system

David A. Weitzenhof; Charles F. Sayre

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