Hydraulic shock absorber

Details Hydraulic shock absorber Hydraulic shock absorber

1975-10-20

1977-11-29

Blix, Trygve M.

Brakes

Internal-resistance motion retarder

Resistance alters relative to direction of thrust member

1374931, 188317, F16F 950

Patent

active

040601552

ABSTRACT:
A telescopic hydraulic shock absorber in which a valve for controlling downward flow through the piston is formed by a spring disc valve sealing against a seat on the underside of the piston, and a valve for controlling upward flow through the piston is formed by a spring disc valve located between the piston and the first-mentioned disc valve. Apertures are formed in the first-mentioned disc valve to permit the upward flow, and the second disc valve seals these apertures when closed. A single set of passages through the piston is provided to accommodate both upward and downward flows.

REFERENCES:
patent: 2546051 (1951-02-01), Whisler, Jr.
patent: 3043404 (1962-07-01), Peras
patent: 3447644 (1969-06-01), Duckett
patent: 3605801 (1971-09-01), De Carbon
patent: 3756357 (1973-09-01), Graff et al.

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