Gas spring suitable as a lifting aid for hatchbacks or trunk lid

Details Gas spring suitable as a lifting aid for hatchbacks or trunk lid Gas spring suitable as a lifting aid for hatchbacks or trunk lid

1977-11-23

1979-05-29

Mitchell, David M.

Spring devices

Fluid

Expansible-contractible chamber device

267 65R, 296146, F16F 902

Patent

active

041565231

ABSTRACT:
A gas spring suitable as a lifting means for a car hatchback includes a device to hold the gas spring piston rod in its extended position with the hatchback fully open. Such holding device comprises a pair of check valves associated with the guide piston of the gas spring whereby one such check valve is spring-biased closed so that a substantial closing force is required to initiate closing of the hatchback.

REFERENCES:
patent: 3851867 (1974-12-01), Fricko
patent: 3947006 (1976-03-01), Bauer et al.
patent: 4045008 (1977-08-01), Bauer

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