O-ring seal in channel with fluid pressure equalization means

Details O-ring seal in channel with fluid pressure equalization means O-ring seal in channel with fluid pressure equalization means

1984-02-13

1986-03-25

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 78, 277 27, 277177, 277176, 13762569, F16J 1548, F15B 13042

Patent

active

045778701

ABSTRACT:
An apparatus to improve the sealing capabilities of a sealing member. The apparatus comprises a first member having a channel formed therein for receiving the sealing member in sealing engagement with the bottom of the channel. A second member forms a second seal with the sealing member. A number of fluid pressure zones are provided in addition to two fluid passageways to communicate fluid on opposed sides of the sealing member. A means is provided on at least one side of the sealing member to communicate a portion of at least one of the fluids communicated into the pressure zones between two of such pressure zones. A method for using the apparatus to improve the sealing capabilities of a sealing member is also disclosed.

REFERENCES:
patent: 2614793 (1952-10-01), Storm
patent: 2652298 (1953-09-01), Estey
patent: 2892645 (1959-06-01), Tydeman
patent: 3023014 (1962-02-01), Donner
patent: 3359999 (1967-12-01), Mueller
patent: 3462159 (1969-08-01), Baumann et al.
patent: 3727925 (1973-04-01), Jones
patent: 4034993 (1977-07-01), Okada et al.
patent: 4155557 (1979-05-01), Grebert
patent: 4165622 (1979-08-01), Brown
patent: 4277031 (1981-07-01), Moumaneix et al.
patent: 4418711 (1983-12-01), Stoll et al.

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