Devices for making fluid-tight joints between two relatively rot

Details Devices for making fluid-tight joints between two relatively rot Devices for making fluid-tight joints between two relatively rot

1973-06-19

1976-02-17

Rothberg, Samuel B.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 36, 277 92, 277 84, F16J 900

Patent

active

039388123

ABSTRACT:
A gland for making a fluid tight seal between a casing and a sleeve which were rotatable with respect to each other is disclosed. The gland comprises a rubbing ring mounted in a casing, a floating ring keyed to said sleeve, and a spring acting between said sleeve and said floating ring to urge said floating ring into engagement with said rubbing ring. A first part of a sealing ring of fluid-resistant elastomeric material is mounted in a recess of one of said sleeve and floating ring and forms a seal with at least one wall surface of said recess. A second part of said sealing ring forms a sliding seal with the surface of the other of said sleeve and floating. An L-shaped rubbing ring has a first surface abutting said floating ring, a second surface substantially parallel to said first surface and adapted to abut a step in said casing and a third surface substantially perpendicular to and intersecting said second surface. A cuff, positioned between said casing and rubbing ring and spaced from said second surface of said rubbing ring forms a seal with said third surface of said rubbing ring. The outer diameter of said floating ring where it abuts the said first surface of said rubbing ring is greater than the inner diameter of said cuff where it forms said seal with said rubbing ring.

REFERENCES:
patent: 2395095 (1946-02-01), Brady, Jr.
patent: 2912265 (1959-11-01), Brummer
patent: 2984506 (1961-05-01), Andresen
patent: 3588127 (1971-06-01), Coleman
patent: 3788650 (1974-01-01), Place

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