Impact absorption devices and valve structure

Details Impact absorption devices and valve structure Impact absorption devices and valve structure

1974-09-06

1976-04-06

Halvosa, George E. A.

Spring devices

Vehicle

Comprising compressible fluid

137494, 188282, 188315, 188322, 267 34, 293DIG2, F16F 910

Patent

active

039484998

ABSTRACT:
An impact absorber, particularly for automobile fenders, comprising a cylinder, a piston on one end of a piston rod and slidable in the cylinder, an annular partition slidable on the piston rod, and a valve carried by the piston and allowing, on compression of the impact absorber, flow from the chamber beyond the piston to the annular chamber between the piston and the partition. The valve is biased in the closing direction by a spring and has a valve member with opposed differential areas which are exposed to the pressure in the said chamber and are selected to bias the valve in the opening direction.

REFERENCES:
patent: 2537491 (1951-01-01), Thornhill
patent: 2825427 (1958-02-01), Steibel
patent: 3534870 (1970-10-01), Daugherty, Jr.
patent: 3570635 (1971-03-01), Takagi

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