Seal with a compensating thrust ring

Details Seal with a compensating thrust ring Seal with a compensating thrust ring

1978-04-20

1979-01-02

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 84, 277 92, 277 95, 277 961, 305 11, B62D 5500, F16J 1538

Patent

active

041324188

ABSTRACT:
Disclosed herein is a seal with a compensating thrust ring which is able to exercise an efficient sealing action between the opposite flat surfaces of two members of an articulation spaced axially one from the other and subjected to undergoing, in addition to relative rotation around a common axis, minor relative axial displacements.
The seal in question consists essentially of a sealing ring made of material highly resistant to wear, and a compensating thrust ring with high elastic deformation characteristics, positioned so that it is pressed into contact with the two walls of a cylindrical housing provided in the flat surface of the first of the two articulation members.
The front of the sealing ring is provided with an edge designed to seal onto the flat surface of the second member, while the back is profiled to form a particular convex surface in contact with the compensating ring and under the thrust action thereof.
The said convex surface is designed so that the compensating ring can exercise a sufficiently constant thrust on the sealing ring in an axial direction, to suit the variations in the distance between the opposite flat surfaces of the two members.

REFERENCES:
patent: 2881015 (1959-04-01), Wahl
patent: 3275334 (1966-09-01), Voitik
patent: 3336086 (1967-08-01), Reinsma
patent: 3838862 (1974-10-01), Fern
patent: 3841718 (1974-10-01), Reinsma
patent: 3905607 (1975-09-01), Maguire et al.

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