Title: Impact kinetic energy absorber

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.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Peterson, Gerald H.

Application Number: 542131
Filing Date: 1975-01-17
Publication_date: 1976-08-17
Assignee:
Primary Class(es): 267/139 188/374, 293/133, 293/136, 293/137
Other Classes:
US Patent Ref:

3494607	Feb, 1970	Rusch	267/116.
3588159	Jun, 1971	Duckett	293/70.
3659835	May, 1972	Peterson	267/136.
3695665	Oct, 1972	Matsuura	293/70.

Other Refs:
Primary Examiner: Marbert, James B.
Assistant Examiner:
Attorney: Beveridge, Degrandi, Kline & Lunsford