Integral seal

Details Integral seal Integral seal

1977-10-25

1983-08-09

Schwadron, Martin P.

Valves and valve actuation

Rotary valves

Plug

251317, F16K 518

Patent

active

043974465

ABSTRACT:
A sealing sleeve for a rotary type valve is disclosed. The sealing sleeve is formed into a generally circular configuration and is disposed between the housing and the rotor of the valve to provide a firm seal therebetween. Apertures are provided in the periphery of the sleeve and are positioned therein to align with the rotor bores. The inner surface of the sleeve has a thin layer of elastomeric material chemically bonded thereto which terminates in a bead-like configuration about each aperture and on the interior thereof. This bead-like configuration provides a firm seal between the rotor bore and the housing ports eliminating the necessity of O-rings therebetween.

REFERENCES:
patent: 2290349 (1942-07-01), Ohls
patent: 2310583 (1943-02-01), Johnson
patent: 2547116 (1951-04-01), Gould
patent: 2943838 (1960-07-01), Skei
patent: 3108779 (1963-10-01), Anderson
patent: 3184215 (1965-05-01), Anderson
patent: 3325141 (1967-06-01), Skendrovic
patent: 3360236 (1967-12-01), Hulslander
patent: 3426795 (1969-02-01), Muller
patent: 3497179 (1970-02-01), Smyers, Jr.

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