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Class Information
Number: 137/870
Name: Fluid handling > Systems > With flow control means for branched passages > With common valve operator > With electrical actuation
Description: System wherein the coordinating means includes means utilizing electrical energy to effect actuation of a flow control means.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
4460015 Three-way control valve Jul. 17, 1984
4436148 Chemical treatment for oil wells Mar. 13, 1984
4422475 Variable gain servo controlled directional valve Dec. 27, 1983
4391292 Fast-response three-way solenoid valve Jul. 5, 1983
4386625 Fuel transfer valve Jun. 7, 1983
4373552 Electromagnetic flow control valve assembly Feb. 15, 1983
4368759 Electromagnetic flow control valve unit Jan. 18, 1983
4338966 Direct solenoid operated directional control valve Jul. 13, 1982
4285363 Control valve construction Aug. 25, 1981
4281682 Proportional control type remote-control direction switching control valve device Aug. 4, 1981
4269229 Solar heat system May. 26, 1981
4259985 Three-way solenoid-operated pinch valve assembly Apr. 7, 1981
4250924 Electromagnetic control valve assembly Feb. 17, 1981
4237923 Solenoid non return valve Dec. 9, 1980
4230151 Pinch valve Oct. 28, 1980
4223698 Solenoid operated bipropellant valve Sep. 23, 1980
4191215 Digital fluid flow rate controller Mar. 4, 1980
4181154 Deflector valve for fluids Jan. 1, 1980
4177774 Control valves Dec. 11, 1979
4151860 Electromagnetically actuated hydraulic control valve May. 1, 1979
4082117 Manually operated lawn sprinkling or irrigating system Apr. 4, 1978
4038817 Fuel jettison system Aug. 2, 1977
3996964 Control apparatus particularly for a plurality of compressor bleed valves of a gas turbine engine Dec. 14, 1976
3991788 Fluid flow distributor for multi-choice vending machine Nov. 16, 1976
3982562 Pressure control apparatus Sep. 28, 1976
3972349 Variable ratio bypass gas turbine engine with flow diverter Aug. 3, 1976
3948286 Rotary valve for an oxygen generator Apr. 6, 1976

1 2 3










 
 
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