Patents
Sitemap › F15 - Fluid-pressure actuators; Hydraulics or pneumatics in general › F15C - Fluid-circuit elements predominantly used for computing or control purposes › F15C 1 - Circuit elements having no moving parts
Patents for F15C 1 - Circuit elements having no moving parts (1,509)
11/1993
11/11/1993CA2110804A1 Fluidic oscillator and flow meter comprising same
09/1993
09/29/1993CN1022230C Coanda spiral flow unit
05/1993
05/25/1993US5213270 Low cost, low pressure fluidic oscillator which is free of feedback
05/25/1993US5213269 Low cost, low pressure, feedback passage-free fluidic oscillator with interconnect
04/1993
04/01/1993WO1993005885A1 Low cost, low pressure, feedback passage-free fluidic oscillator with interconnect
03/1993
03/30/1993US5197517 Valve devices
03/23/1993US5195560 Adjustable low frequency hydrofluidic oscillator
03/10/1993EP0530967A2 An improved flow control system
02/1993
02/16/1993US5186001 For providing motion at a high repetitive rate
01/1993
01/27/1993EP0524852A1 Fluidic oscillator and flowmeter incorporating the same
01/26/1993US5181660 Low cost, low pressure, feedback passage-free fluidic oscillator with stabilizer
01/10/1993CA2073368A1 Fluidic oscillator and flowmeter incorporating said oscillator
11/1992
11/25/1992EP0299977B1 Fluidic oscillator
11/24/1992US5165438 Fluidic oscillator
07/1992
07/15/1992EP0494531A2 Valve devices
07/14/1992US5129585 Spray-forming output device for fluidic oscillators
06/1992
06/25/1992WO1992010686A1 Method and apparatus to modify fluid flow
06/09/1992CA1303100C Fluidic oscillating nozzle
06/02/1992US5117794 Fuel injection system
05/1992
05/12/1992US5111847 Pneumatic actuator
04/1992
04/30/1992WO1992008059A1 Vortex valves
04/30/1992CA2095246A1 Vortex valves
04/28/1992CA1299496C Fluidic apparatus
01/1992
01/14/1992US5080137 Vortex flow regulators for storm sewer catch basins
12/1991
12/31/1991US5076327 Electro-fluid converter for controlling a fluid-operated adjusting member
12/18/1991EP0461115A1 Method for improving signal-to-noise ratios in fluidic circuits and apparatus adapted for use therewith
12/04/1991CN1056738A Coanda spiral flow unit
11/1991
11/21/1991EP0456931A1 Coanda spiral flow device
11/14/1991DE4015083A1 Pulsation-generating equipment - has throttles in fluidic switch outlets after junctions with throttles and accumulator units
10/1991
10/16/1991EP0452056A1 Pneumatic actuator
09/1991
09/03/1991CA1288403C Fluidic oscillator
08/1991
08/20/1991US5040560 Method and apparatus for controlled modification of fluid flow
07/1991
07/31/1991EP0438599A1 Nozzle for jetting a self-vibratory fluid stream
07/30/1991US5035361 Fluid dispersal device and method
06/1991
06/25/1991US5025835 Laminar flow acoustic sensor-amplifier
06/04/1991USRE33605 Fluidic oscillator and spray-forming output chamber
06/04/1991US5020857 Hydraulic lift mechanism
05/1991
05/08/1991EP0135588B1 Fluidic transducer for switsching fluid flow
03/1991
03/07/1991WO1991002594A1 Nozzle for jetting self-vibratory fluid stream exhibiting high cleaning efficiency by varying the shape of output port
11/1990
11/20/1990USRE33448 Fluidic oscillator and spray-forming output chamber
10/1990
10/30/1990CA1275611C Silicon valve
10/17/1990EP0392713A1 An improved ventilation system
09/1990
09/18/1990CA1274130A1 Fuel injection system
09/11/1990US4955547 Fluidic oscillating nozzle
09/07/1990WO1990010158A1 Method for improving signal-to-noise ratios in fluidic circuits and apparatus adapted for use therewith
07/1990
07/04/1990EP0376877A1 Enhanced output opto-fluidic device
06/1990
06/19/1990US4934409 T junction interconnected multistage fluidic gainblock
05/1990
05/30/1990EP0370195A1 Fluidic set point amplifier apparatus and method, and uses thereof
05/15/1990US4924912 Electrofluidic pin transducer with stable null setting
04/1990
04/17/1990US4917151 Fluidic apparatus
03/1990
03/27/1990US4911007 For measuring fluid flow through a pipeline
03/06/1990US4905909 Fluidic oscillating nozzle
02/1990
02/06/1990USRE33159 Fluidic oscillator with resonant inertance and dynamic compliance circuit
02/06/1990USRE33158 Fluidic oscillator with resonant inertance and dynamic compliance circuit
01/1990
01/09/1990CA1264310A1 Air sweep defroster
01/08/1990EP0299977A4 Fluidic oscillator.
12/1989
12/19/1989US4887628 Fluidic apparatus
10/1989
10/17/1989US4874016 Method for improving signal-to-noise ratios in fluidic circuits and apparatus adapted for use therewith
09/1989
09/19/1989US4867041 Vortex amplifier driven actuator spool
08/1989
08/08/1989US4854219 Optical control system
08/02/1989EP0326257A1 Fluidic apparatus
07/1989
07/11/1989US4846224 Vortex generator for flow control
07/04/1989US4844128 For bounding an interaction passage
06/1989
06/14/1989EP0319594A1 Fluidic oscillator with resonant inertance and dynamic compliance circuit
05/1989
05/30/1989US4833880 Fluidic set point amplifier apparatus and method, and uses thereof
05/16/1989US4830053 Fluidic devices
04/1989
04/11/1989US4819431 Controlling the flow of gas
03/1989
03/08/1989EP0305996A1 Fluidic oscillating nozzle
03/01/1989EP0305163A1 A method of controlling flow
01/1989
01/25/1989EP0299977A1 Fluidic oscillator.
12/1988
12/21/1988EP0295845A1 Fluidic oscillator
10/1988
10/05/1988EP0285336A2 Improvements relating to operating control arrangements for fluidic devices
07/1988
07/05/1988CA1238836A1 Fluidic level control system
06/1988
06/28/1988CA1238617A1 Product liquid operated pilot and operating valves for filling systems
03/1988
03/29/1988US4733695 Fluidic set-point pressure sensor
03/15/1988CA1234054A1 Inertance loop construction for air sweep fluidic oscillator
02/1988
02/02/1988US4722365 Fluidic device
01/1988
01/26/1988US4721251 Fluid dispersal device
01/05/1988US4716935 Fluidic rectifier
12/1987
12/01/1987US4709622 In a motor vehicle windshield defrost/defog system
10/1987
10/22/1987WO1987006201A1 Fluidic oscillator
09/1987
09/22/1987US4694992 Novel inertance loop construction for air sweep fluidic oscillator
07/1987
07/07/1987US4678009 Fluidic complementary gain changing circuit
06/1987
06/30/1987CA1223498A1 Liquid level control device
05/1987
05/05/1987US4662568 Jet break-up device for spray nozzle applications
05/05/1987US4662401 High pressure choke assembly
04/1987
04/28/1987CA1221033A1 High flow oscillator
03/1987
03/11/1987EP0213808A2 Fluidic device
03/03/1987US4647013 Silicon valve
02/1987
02/24/1987US4645126 Cold weather fluidic windshield washer method
02/24/1987US4644854 Air sweep defroster
01/1987
01/14/1987EP0208386A1 Silicon valve
01/14/1987EP0208174A2 Novel inertance loop construction for air sweep fluidic oscillator
12/1986
12/30/1986CA1216046A1 Liquid metering and fluidic transducer for electronic computers
11/1986
11/05/1986EP0200063A1 Fuel injection system
10/1986
10/15/1986EP0197346A2 Air sweep defroster
09/1986
09/09/1986US4610274 Fluidic device
08/1986
08/19/1986US4606375 Fluidic device
07/1986
07/24/1986EP0135588A4 Fluidic transducer for switsching fluid flow.
07/01/1986US4597285 For determining the moisture content of a sample of gas
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