Spring devices – Resilient shock or vibration absorber – Including energy absorbing means or feature
Patent
1976-01-29
1980-02-05
Marmor, Charles A.
Spring devices
Resilient shock or vibration absorber
Including energy absorbing means or feature
293122, B60R 908
Patent
active
041869150
ABSTRACT:
Soft face bumper for vehicles incorporating a resilient energy absorbing cellular matrix molded from a plastic material and having walls of longitudinally extending cells stepped in thickness to provide at least two serially arranged working zones to form a staged energy absorber.
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patent: 3721433 (1973-03-01), Sobel
patent: 3822909 (1974-07-01), Livingstone et al.
patent: 3901543 (1975-08-01), Norlin
patent: 3926462 (1975-12-01), Burns et al.
patent: 3944271 (1976-03-01), Eggert, Jr.
Landwehr Dewayne A.
Zeller Gary P.
General Motors Corporation
Marmor Charles A.
White Charles R.
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