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Class Information
Number: 137/83
Name: Fluid handling > Pressure modulating relays or followers > Jet control type
Description: Apparatus which utilize a fluid jet and one or more jet receiving orifices with the control condition varying the pressure in the orifices by varying the amount of jet fluid entering the orifices.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8317154 Method for operation of a position regulator Nov. 27, 2012
7802585 Transducer of an electrical input signal into pneumatic output signals Sep. 28, 2010
7485163 Nozzle and filter-type dust collector Feb. 3, 2009
6344702 Simplified torque motor Feb. 5, 2002
6158969 Hydrostatic pump and disable control therefor Dec. 12, 2000
5768883 Flowrate control sytem and method Jun. 23, 1998
5651385 Servo drive operated by a pressure medium Jul. 29, 1997
5533935 Toy motion simulator Jul. 9, 1996
5522301 Pressure control valve for a hydraulic actuator Jun. 4, 1996
5443089 Hydraulic amplifiers with reduced leakage at null Aug. 22, 1995
5392809 Hyper-reset pressure controller Feb. 28, 1995
5333637 Pneumatic instrument particle trap Aug. 2, 1994
5303727 Fluidic deflector jet servovalve Apr. 19, 1994
5215111 Method of performance improvement for an I/P servo Jun. 1, 1993
5133379 Servovalve apparatus for use in fluid systems Jul. 28, 1992
5133380 Pneumatic control valve Jul. 28, 1992
5088383 Multiplexed hydraulic control system with multiplexing valve having planar port array Feb. 18, 1992
5070898 Metering valve Dec. 10, 1991
5067512 Servovalve apparatus for use in fluid systems Nov. 26, 1991
5031653 Differential cylinder pressure gain compensation for single stage servovalve Jul. 16, 1991
5012836 Servovalve apparatus for use in fluid systems May. 7, 1991
5005600 Servovalve apparatus for use in fluid systems Apr. 9, 1991
4855659 Electropneumatic position regulator Aug. 8, 1989
4796655 Fluid control devices Jan. 10, 1989
4743419 On-line film fluorination method May. 10, 1988
4660589 Optical feedback loop system for a hydraulic servovalve Apr. 28, 1987
4638830 High sensitivity magnetic actuator Jan. 27, 1987
4614560 Pneumatic adhesive control system Sep. 30, 1986
4534376 Electric signal to pressure signal transducer Aug. 13, 1985
4503875 Gas high-low pressure control apparatus Mar. 12, 1985
4442855 Fail-safe single-stage servovalve Apr. 17, 1984
4441525 Fluidic stabilization control Apr. 10, 1984
4425509 Turboflapper nozzle systems Jan. 10, 1984
4378031 Electrohydraulic servovalve Mar. 29, 1983
4368750 Ball-type feedback motor for servovalves Jan. 18, 1983
4291716 Pilot stage valve Sep. 29, 1981
4273149 Blind pressure pilot Jun. 16, 1981
4170244 Pressure tight valve seat for valves consisting of two opposing tubes Oct. 9, 1979
4141376 Digital servovalve drive Feb. 27, 1979
4112960 Variable-gradient spring sub-assembly Sep. 12, 1978
4029979 Fluidic to electric transducer and method Jun. 14, 1977
4010767 Fuel supply and distribution system Mar. 8, 1977
4003396 Proportional control closed circuit gas admission system Jan. 18, 1977
3999381 Position control of jet pipe in missile attitude control system Dec. 28, 1976
3993101 Tristable fluidic device Nov. 23, 1976
3990824 Film size control apparatus for the blown film process Nov. 9, 1976
3986856 Blowing apparatus having individual control of nozzles Oct. 19, 1976
3976089 Sensing device Aug. 24, 1976
3965918 Electro-fluidic signal converter Jun. 29, 1976
3962903 Method and system for sensing an identifying means Jun. 15, 1976

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