Reduced height double flap dust valve

Details Reduced height double flap dust valve Reduced height double flap dust valve

1992-11-20

1993-09-07

Fox, John C.

Fluid handling

Systems

Flow path with serial valves and/or closures

251212, 137242, F16K 118

Patent

active

052419894

ABSTRACT:
A reduced height dust valve is described which is used in a trap which utilizes a pair of said valves to remove dust from, for example, a vacuum line, is described. The valve includes a body having a longitudinal flow path, a valve seat detachably mounted in the upper portion of the body and opposed flapper plates which seat against each other to close the valve or are rotated downwardly by actuator shafts to open the valve. The flapper plates define adjacent edges which seat against each other by a sliding action permitted by movement of one of the two actuator arms.

REFERENCES:
patent: 1051872 (1913-02-01), Eirich
patent: 2157554 (1939-05-01), McFarlin
patent: 2721678 (1955-10-01), Gill
patent: 2852036 (1958-09-01), Riza
patent: 3410422 (1608-11-01), Carpenter
patent: 3417961 (1968-12-01), Shorrock
patent: 3544045 (1970-12-01), Butscher
patent: 3799502 (1974-03-01), Baum

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