Valve closing actuator

Details Valve closing actuator Valve closing actuator

1994-05-17

1995-08-15

Schwadron, Martin P.

Valves and valve actuation

Tube compressors

Fluid pressure actuated

251 7, 251 61, F16K 707

Patent

active

054412315

ABSTRACT:
There is provided a valve for use in regulating flow of fluid through a conduit having a deformably resilient valve sleeve, in which the valve includes a housing, and at least first and second opposing jaw members disposed transversely to the conduit for deforming the valve sleeve with the conduit sandwiched between the first and second opposing jaw members. The jaw members are movable between an open position, with the first and second jaw members spaced apart a distance sufficient to permit flow of liquid through the conduit, and a closed position, with the jaw members pinched together sufficiently to restrict or shut off the flow of fluid through the conduit. Inflatable diaphragms are provided to control movement of the jaw members between the open position, when the diaphragms are in a deflated configuration, and the closed position, when the diaphragms are in an inflated configuration.

REFERENCES:
patent: 3695576 (1972-10-01), Kane et al.
patent: 3737139 (1973-06-01), Watts
patent: 4135550 (1979-01-01), Andersson

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