Valves and valve actuation – Rotary valves – Seat or interface seal
Patent
1976-04-14
1979-03-06
Cline, William R.
Valves and valve actuation
Rotary valves
Seat or interface seal
251309, 137246, 2771895, F16K 500
Patent
active
041427084
ABSTRACT:
There is disclosed herein a valve and seal assembly comprising a valve body having a movable core housed therein adapted to allow the flow of material through the valve to be interrupted, and means for sealing the core and body so as to prevent leakage. The valve is sealed against leakage through the cooperation of a pair of O rings disposed at opposite ends of the rotatable member and metal bars extending axially between these O rings and engaging portions of the core and body. The metal bars are retained in grooves provided in either the core or body and are surrounded by a layer of resilient material on three sides thereof which urge the exposed metal portion out of these grooves and into a sealing engagement with the opposing core or body surface and also prevent material flowing through the valve from entering the grooves. A similar seal in the form of a ring is also contemplated for use in sealing a rotating shaft.
REFERENCES:
patent: 1534386 (1925-04-01), Heslewood
patent: 2282455 (1942-05-01), Church et al.
patent: 2547116 (1951-04-01), Gould
patent: 2728620 (1955-12-01), Krueger
patent: 2760794 (1956-08-01), Hartranft
patent: 3552407 (1971-01-01), Hirano
patent: 5400940 (1968-09-01), Conrad et al.
Cline William R.
Spiegel H. Jay
Sprayton Equipment Company
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