Impact kinetic energy absorber

Details Impact kinetic energy absorber Impact kinetic energy absorber

1975-01-17

1976-08-17

Marbert, James B.

Spring devices

Resilient shock or vibration absorber

Bumper

293 70, 188 1C, F16F 712

Patent

active

039750060

ABSTRACT:
An impact kinetic energy absorber with automatic return in which the kinetic energy of impact is applied to an impact receiving container having a movable wall and substantially filled with plastic material which on impact is forced to be extruded through an orifice into a second plastic receiving container also substantially filled with plastic material so that on impact plastic material is extruded through said orifice to absorb kinetic energy and plastic material is compressed in said second container, which compressed plastic, after said impact forces plastic material to be extruded back through said orifice to return said impact receiving container and movable wall to the original position. In one embodiment a spring returns the plastic material to its pre-impact receiving position so that the plastic material is under a pressure below its yield point except only for that portion of the plastic that is being forced back through the orifice to return to its original pre-impact position.

REFERENCES:
patent: 3494607 (1970-02-01), Rusch
patent: 3588159 (1971-06-01), Duckett
patent: 3659835 (1972-05-01), Peterson
patent: 3695665 (1972-10-01), Matsuura

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