Seat for air valves

Details Seat for air valves Seat for air valves

1996-09-30

1998-06-23

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Circumferential contact seal for other than piston

277644, 277910, 137202, F16J 1510, F16J 1532

Patent

active

057694290

ABSTRACT:
An improved seat for air valves and combination air release and air valves is provided. The improved seal for an air valve has a resilient member with a top surface and a bottom surface and a through hole therebetween; a circular raised bead positioned on the top surface having a diameter larger than that of the through hole and a circumferential slot arranged in the through hole; and having a diameter larger than that of the through hole so that a lip is formed between the bottom surface and the circumferential slot. In addition, a seal for an air valve having a resilient member with a top surface and a bottom surface and a through hole therebetween; a circular raised bead positioned on the bottom surface, the circular raised bead having a diameter larger than that of the through hole; and a notch circumscribing the through hole and having a diameter larger than that of the through hole so that contact surface is formed between the notch and the through holes is also provided. The seal is preferably a hard elastomer of up to approximately 90 durometer.

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Val-Matic, "Swing-Flex.RTM. Check Valve", Bulletin 500, Jan. 15, 1994.
Val-Matic, "Combination Air Valves", Bulletin No. 200, Revised Aug. 1, 1989.
Val-Matic, "Air and Vacuum Valves", Bulletin No. 100, Revised Aug. 1, 1989.
Val-Matic, Air and Vaccum Valves, Drwg. No. VM-100, Revised Feb. 1, 1985.
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Val-Matic, Combination Air Release, Air & Vacuum Valve, Drwg. No. VM-201C, Revised Aug. 15, 1990.

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