Valves and valve actuation – Fluid actuated or retarded – Pilot or servo type motor
Patent
1998-07-21
2000-03-07
Lee, Kevin
Valves and valve actuation
Fluid actuated or retarded
Pilot or servo type motor
13759617, F16K 3102
Patent
active
06032919&
ABSTRACT:
A gas flow proportioning and controlling valve system includes a pressurized air flow source, a flow control valve, first and second latching valves and a control mechanism. The control valve is capable of pneumatic actuation between fully opened and closed positions permitting and preventing gas flow through it and to selected intermediate positions to provide proportionately greater and lesser opening of the control valve and magnitude of pressure and velocity of gas flow through it. The first latching valve is connected to the source, control valve and a vent line and is switchable between an opened condition in which communication of pressurized air flow is only provided therethrough from the source to the control valve and a closed condition in which communication of pressurized air flow is only provided therethrough from the control valve to the vent line. The second latching valve is connected to the vent line from the first latching valve and to atmosphere and is switchable between an opened condition in which communication of pressurized air flow is only provided therethrough from the vent line to atmosphere and a closed condition wherein communication of pressurized air flow is not provided therethrough. The control mechanism is operable to cause selective and separate switching of the latching valves between their respective opened and closed conditions in a coordinated manner which causes pneumatic actuation of the control valve to any selected intermediate position between fully opened and closed positions.
REFERENCES:
patent: 2662542 (1953-12-01), Logan et al.
patent: 3036585 (1962-05-01), Shawhan
patent: 3219046 (1965-11-01), Waugh
patent: 3415264 (1968-12-01), Brown et al.
patent: 3437312 (1969-04-01), Jenny
patent: 3474815 (1969-10-01), Beahm et al.
patent: 3581759 (1971-06-01), Veale
patent: 3705792 (1972-12-01), Peters
patent: 4183384 (1980-01-01), Ervin et al.
patent: 4241750 (1980-12-01), Furuse et al.
patent: 4961441 (1990-10-01), Salter
patent: 5042775 (1991-08-01), Willemsen
Kimray, Inc., 1"& 2" High Pressure Motor Valve, p.E1:10.1 dated Jan. 1994.
EEMCO, Division of Datron Systems Inc., Two and Three-Way Latching Valves, 2 pages, No Date.
Giacomino Jeff L.
Victor Bruce M.
Flanagan John K.
Flanagan John R.
Lee Kevin
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