Shock absorbers with improved compressible cushions

Details Shock absorbers with improved compressible cushions Shock absorbers with improved compressible cushions

1980-02-04

1982-01-12

Nozick, Bernard

Brakes

Internal-resistance motion retarder

Resistance alters relative to direction of thrust member

188269, 188315, F16F 950

Patent

active

043100775

ABSTRACT:
A direct acting hydraulic shock absorber of the twin tube type including inner and outer tubular members, having an improvement which comprises forming an opening in the inner tubular member adjacent an end thereof, mounting a sleeve of elastomeric material in surrounding relation to the exterior periphery of the inner tubular member in covering relation to the opening, and providing a rigid tube having a pair of axially spaced radially inwardly deformed annular beads disposed in spaced relation between the interior periphery of the inner tubular member and the exterior periphery of the outer tubular member in surrounding relation to the sleeve with the beads sealingly compressing the elastomeric material of the sleeve into sealing relation with the adjacent exterior periphery of the inner tubular member at annular positions spaced longitudinally on opposite sides of the opening so that hydraulic fluid within the adjacent space of the cylindrical chamber subjected to pressure can pass through the opening for confinement by the portions of the exterior periphery of the inner tubular member and the interior periphery of the sleeve between the annular positions.

REFERENCES:
patent: 2507267 (1950-05-01), Patriquin
patent: 2815829 (1957-12-01), Boehm et al.
patent: 3213973 (1965-10-01), Damon
patent: 3771626 (1973-11-01), Palmer
patent: 4109767 (1978-08-01), Nandyal et al.
patent: 4182438 (1980-01-01), Pepi

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