Energy absorbing bumper

Details Energy absorbing bumper Energy absorbing bumper

1975-12-08

1978-03-14

Peters, Jr., Joseph F.

Vehicle fenders

Double-ender interconnected

213 1A, B61F 1904

Patent

active

040788377

ABSTRACT:
An energy absorbing bumper for attachment to vehicles, such as automobiles, is disclosed. The energy absorbing bumper includes a low density foamed plastic having a semi-rigid cellular structure, so that upon impact greater than a pre-determined minimum impact the energy absorbing material collapses, and absorbs substantially the entire impact, without any increase in its density. In particular, low density foamed plastics, such as urethane, are empolyed, having a density of less than 7 pounds per cubic foot. The bumper disclosed includes means for permitting collapse of the foamed plastic without any substantial increase in its density, so that the plastic itself absorbs substantially the entire force of impact upon the bumper.

REFERENCES:
patent: 2732040 (1956-01-01), DeVost et al.
patent: 3284122 (1966-11-01), Rich
patent: 3494607 (1970-02-01), Rusch
patent: 3610609 (1971-10-01), Sobel
patent: 3724833 (1971-03-01), Sergay
patent: 3752462 (1973-08-01), Wight, Jr.

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