Composite valve seal

Details Composite valve seal Composite valve seal

1997-09-30

1999-05-11

Fox, John

Valves and valve actuation

Rotary valves

251309, 251358, F16K5/02

Patent

active

059019441

ABSTRACT:
A composite sealing unit for sealing between moving parts in a valve is disclosed. The sealing unit has a sealing portion that interfaces with the moving parts and is adapted to isolate a reinforcing portion from media within the valve. The reinforcing portion, which can be encapsulated within the sealing unit, is operative to enhance the resiliency of the sealing unit.

REFERENCES:
patent: 3133722 (1964-05-01), McGuire et al.
patent: 3423067 (1969-01-01), Foster
patent: 3526386 (1970-09-01), Gachot
patent: 3825030 (1974-07-01), Kalsi
patent: 4175578 (1979-11-01), Priese
patent: 4289296 (1981-09-01), Krause
patent: 4494730 (1985-01-01), George
patent: 4817662 (1989-04-01), Skibowski
Xomo--.Tufline Fully Lined Buterfly Valves., 1992.
Xomox--.Tuflin Easi-Sleeve Valves.
Flowseal--A Unit of Mark Controls Corporation, .Soft Seat Valve.
Has-Mor Industries, Inc., .Teflon Encapsulated O-Rings.
Row, Inc., Specialists in Chemically-Resistant, Resilient Teflon* O-Rings.

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