Cushioning device for fluid jacks

Details Cushioning device for fluid jacks Cushioning device for fluid jacks

1978-11-20

1981-02-17

Maslousky, Paul E.

Motors: expansible chamber type

Working member position responsive motive fluid control

Exhaust control

92 85B, 188287, F15B 1522, F01B 1102

Patent

active

042507936

ABSTRACT:
A fluid jack (10) has a cushioning device (21) positioned within a cylinder (11) between a piston means (12) and a closed end (13) with the cushioning device (21) being a self-contained unit independent of any major components of the fluid jack (10). A variable volume chamber (24) is formed between a pair of members (22,23) with the cushioning taking place by metering the fluid expelled from the variable volume chamber (24) in response to the piston means (12) engaging and moving one of the members (22,23) in a direction for decreasing the volume of the variable volume chamber (24).

REFERENCES:
patent: 2935051 (1960-05-01), Fuller et al.
patent: 3162092 (1964-12-01), Corwin
patent: 3605409 (1971-09-01), Heese et al.
patent: 3877344 (1975-04-01), Langland
patent: 4043254 (1977-08-01), Jaeger
patent: 4065112 (1977-12-01), Leskovec et al.

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