Automatic seal depressurization system

Details Automatic seal depressurization system Automatic seal depressurization system

1992-02-28

1994-01-25

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 15, 277 29, 277 59, 277 71, 220205, 220367, F16J 1510

Patent

active

052809242

ABSTRACT:
A method and apparatus for protecting spaced high pressure seals in a high pressure chamber from damage caused by retained high pressure between the seals after the high pressure in the chamber has been released. A one-way check valve is coupled to the area between the seals and to the interior of the high pressure chamber to automatically vent the area between the seals only when the high pressure in the chamber has been released or removed.

REFERENCES:
patent: 2394364 (1946-02-01), Christensen
patent: 2774619 (1956-12-01), Mercier
patent: 3144035 (1964-08-01), Hablanian et al.
patent: 3181873 (1965-05-01), Reed
patent: 3293994 (1966-12-01), Napolitano
patent: 3328039 (1967-06-01), McKeough
patent: 3582088 (1971-06-01), Matsuzaki et al.
patent: 4430048 (1984-02-01), Fritsch
patent: 5028205 (1991-07-01), Kapadia et al.
patent: 5031509 (1991-07-01), Cowan

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