Sealing apparatus

Details Sealing apparatus Sealing apparatus

1975-11-19

1977-07-12

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277176, 285113, F16J 1524

Patent

active

040349934

ABSTRACT:
Sealing apparatus used for sealing the gap between flanges which comprises an O-ring engaged with a circular groove formed in the coupling surface of one of the flanges and two backup rings engaged with the groove and the O-ring, each of the backup rings having an inclined surface to be axially urged by the O-ring whereby the upper backup ring is moved according to the gap to close it.

REFERENCES:
patent: 2614793 (1952-10-01), Storm
patent: 3329447 (1967-07-01), Hitz
patent: 3716245 (1973-02-01), Turolla
patent: 3833227 (1974-09-01), Nillson
patent: 3927891 (1975-12-01), Larker et al.

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