Fluid handling – With repair – tapping – assembly – or disassembly means – Assembling – disassembling – or removing cartridge type valve
Patent
1982-03-25
1985-02-12
Schwadron, Martin P.
Fluid handling
With repair, tapping, assembly, or disassembly means
Assembling, disassembling, or removing cartridge type valve
251118, 251298, 137613, F16K 116
Patent
active
044984928
ABSTRACT:
A dust trap is disclosed including a pair of coaxially mounted dust valves. Each valve has a valve body with a flow path therethrough. A cylindrical seat is mounted in each body and a frustro conical flapper is provided having an angled surface which seats against a beveled internal surface of the seat. The flapper is mounted on an actuator shaft and rotates from a seated position to an open position substantially parallel to the flow path. A deflector is mounted in the seat and a wear plate is provided along an internal wall of the body opposite the actuator shaft so that dust passing through the valve does not impinge on the open flapper. An access door is also provided to inspect, clear or replace the flapper and seat.
REFERENCES:
patent: 599099 (1898-02-01), Hibbard
patent: 3283772 (1966-11-01), Ensign
patent: 3410422 (1968-11-01), Carpentier
patent: 3937441 (1976-02-01), Baumann
patent: 4033549 (1977-07-01), Stamer
patent: 4121607 (1978-10-01), Bader
patent: 4190074 (1980-02-01), Mailliet et al.
patent: 4253485 (1981-03-01), Legille
Hepperle Stephen M.
Plattsburgh Foundry, Inc.
Schwadron Martin P.
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