Peripheral knife gate seal

Details Peripheral knife gate seal Peripheral knife gate seal

1991-05-20

1992-10-13

Walton, George L.

Valves and valve actuation

Reciprocating valve

Gate

251170, 251171, 251214, 251360, 137375, F16K 302

Patent

active

051543974

ABSTRACT:
A trapezoidal shaped peripheral seal is inserted in a trapezoidal cast peripheral groove in the valve body. A relief cut-out is disposed beneath the peripheral groove. The sealing function is effected by loading the peripheral seal with the gate so as to deflect the seal into the groove a relief cut out which places the seal in a shear mode.

REFERENCES:
patent: 3033517 (1962-05-01), Rovang et al.
patent: 4051863 (1977-10-01), Still
patent: 4206905 (1980-06-01), Dobler
patent: 4377274 (1983-03-01), Mayhew, Jr.
patent: 4679770 (1987-07-01), Liberman
patent: 4703915 (1987-11-01), King
patent: 4773627 (1988-09-01), King et al.
patent: 4798365 (1989-01-01), Mayhew

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