Rotary mechanical fluid face seal with rigid restraint ring mean

Details Rotary mechanical fluid face seal with rigid restraint ring mean Rotary mechanical fluid face seal with rigid restraint ring mean

1986-09-26

1987-06-02

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 87, 277 93SD, F16J 1536, F16J 1538

Patent

active

046697390

ABSTRACT:
A seal assembly for sealing a rotatable shaft to a housing includes a flexible bellows member and a removeable insert which are sealed against each other along complementary tapered sealing surfaces. A rigid restraint is located in the flexible bellows member so as to be isolated from corrosive fluid contained by the bellows to stabilize the sealing area of the sealing surfaces and prevent expansion in that area.

REFERENCES:
patent: 2758856 (1956-08-01), Payne et al.
patent: 2984505 (1961-05-01), Andresen et al.
patent: 3194569 (1965-07-01), Utvitch
patent: 3391942 (1968-07-01), Wilson

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