Self sealing gate valve

Details Self sealing gate valve Self sealing gate valve

1976-11-22

1977-07-12

Schwadron, Martin P.

Fluid handling

With cleaner, lubrication added to fluid or liquid sealing...

Liquid supplied at valve interface

F16K 336

Patent

active

RE0292990

ABSTRACT:
A gate valve structure having a slab gate member and a pair of opposed seat assemblies on opposite sides of the gate member. The seat assemblies loosely fit in recesses in the housing and the dimensions of the gate member, seat assemblies and housing recesses are such that there is controlled interference between all sealing surfaces on assembly. An emergency sealant system provides emergency sealant to the face of the seat assemblies.

REFERENCES:
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patent: 2063655 (1936-12-01), Barner
patent: 2529412 (1950-11-01), Parker
patent: 2628060 (1953-02-01), Parker
patent: 2674436 (1954-04-01), Jones
patent: 2796230 (1957-06-01), Grove et al.
patent: 2810543 (1957-10-01), Bryant
patent: 2861771 (1958-11-01), Bryant
patent: 2868497 (1959-01-01), Graham
patent: 2868498 (1959-01-01), Kaiser
patent: 2882009 (1959-04-01), Bryant
patent: 2916254 (1959-12-01), Wendell
patent: 2925993 (1960-02-01), Downs et al.
patent: 2925994 (1960-02-01), Downs et al.
patent: 2957492 (1960-10-01), Volpin
patent: 3006599 (1961-10-01), Eckert
patent: 3026084 (1962-03-01), Bryant
patent: 3135285 (1964-06-01), Volpin

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