Valves and valve actuation – Fluid actuated or retarded – Flexible wall expansible chamber reciprocating valve actuator
Patent
1988-02-11
1989-07-18
Rosenthal, Arnold
Valves and valve actuation
Fluid actuated or retarded
Flexible wall expansible chamber reciprocating valve actuator
137884, 137885, F16K 712
Patent
active
048487228
ABSTRACT:
A valve is disclosed comprising a first body portion (2) having a first surface (16), a second body portion (4) having a second surface (51) facing the first surface, a flexible sheet (8) positioned between the first and second surfaces, a void (4) in the first body portion created and defined by a concave surface (46) formed in the first surface and one side (18) of the flexible sheet.
There are at least two fluid passageways (20) (22) in the first body portion communicating with the void at spaced locations, at least one of the fluid passageways being a channel formed in the first surface and terminating at the void.
A source of pressure and vacuum (50) (54) is provided for flexing the sheet against and away from the first body portion in order that when the flexible sheet is flexed against the first body portion, the passageways are sealed from each other, and when the flexible sheet is flexed away from the first body portion the fluid passageways are placed in communication with each other by way of the void.
REFERENCES:
patent: 3083943 (1963-04-01), Stewart, Jr. et al.
patent: 4119120 (1978-10-01), Mehaffy et al.
patent: 4168724 (1979-09-01), Graffunder et al.
patent: 4304257 (1981-12-01), Webster
patent: 4353243 (1982-10-01), Martin
patent: 4516604 (1985-05-01), Taplin
Integrated Fluidics, Inc.
Rosenthal Arnold
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