Valves and valve actuation – Fluid actuated or retarded – Piston type expansible chamber reciprocating valve actuator
Patent
1981-08-03
1983-11-15
Rosenthal, Arnold
Valves and valve actuation
Fluid actuated or retarded
Piston type expansible chamber reciprocating valve actuator
251159, 251172, 251329, 251328, F16K 2500
Patent
active
044151390
ABSTRACT:
An automatic sliding gate valve for connection to the ingress or egress opening of a vibrating dryer or other structure operable under either vacuum or pressure, the gate valve having a flat slide plate slidably movable by fluid powered cylinders and dampened, held rigid in its guides and held against pressure or vacuum by pneumatic seal members.
REFERENCES:
patent: 4292992 (1981-10-01), Bhide'
patent: 4335733 (1982-06-01), Richards
Dunn Malcolm G.
Eastman Kodak Company
Reece III Daniel B.
Rosenthal Arnold
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