Liquid-filled radial seal

Details Liquid-filled radial seal Liquid-filled radial seal

1979-08-13

1981-11-17

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277226, F16J 1546

Patent

active

043007759

ABSTRACT:
A liquid-filled radial seal (12) includes an annular seal portion (36) and an annular body portion (34) connected thereto and defining an internal chamber (44) with an incompressible liquid (56) therein. The seal portion (36) has a sealing surface (64) and a cross sectional configuration tapering divergingly away from the sealing surface (64) to a cylindrical reference boundary (38) located between the portions (34,36). The chamber is spaced radially away from the reference boundary (38) and the free radial distance between the chamber (44) and the sealing surface (64) is preferably a preselected proportion of the overall radial height of the seal.

REFERENCES:
patent: 2099722 (1937-11-01), Byers
patent: 2647778 (1953-08-01), Shields
patent: 3074129 (1963-01-01), Peterson
patent: 3149848 (1964-09-01), Galloway
patent: 3330563 (1967-07-01), De Putdt et al.
patent: 3385604 (1968-05-01), Traufler
patent: 3520543 (1970-07-01), Etter et al.
patent: 3642291 (1972-02-01), Zeffer et al.
patent: 3642295 (1972-02-01), Cohen
patent: 3788651 (1974-01-01), Brown

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