Redundant high-pressure seal for fluid spring

Details Redundant high-pressure seal for fluid spring Redundant high-pressure seal for fluid spring

1983-09-16

1985-10-22

Butler, Douglas C.

Spring devices

Vehicle

Comprising compressible fluid

18832216, 267124, 267129, 277 61, 277 62, 277123, F16F 300, F16F 500, F16F 1300

Patent

active

045483892

ABSTRACT:
A seal between a piston rod and a housing in which the piston reciprocates for preventing the escape of compressed fluid from the housing. A fixed sealing member engages the piston rod adjacent the housing wall, and a floating sealing member engages the piston rod at a location spaced from the fixed sealing member. A liquid is in the space between the sealing members.

REFERENCES:
patent: 3207498 (1965-09-01), Wustenhagen et al.
patent: 3804217 (1974-04-01), Keijzer et al.
patent: 3856287 (1976-12-01), Freitag
patent: 3919509 (1975-11-01), Schnitzius
patent: 4030716 (1977-06-01), Freitag
patent: 4108423 (1978-08-01), Skubal
patent: 4230309 (1980-10-01), Schnitzius
patent: 4263488 (1981-04-01), Freitag et al.
patent: 4270635 (1981-06-01), Wossner

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