Patents for F16K 31 - Operating means; Releasing devices (69,292)
01/1991
01/22/1991CA2021370A1 Ultra precision pressure regulator
01/16/1991EP0407743A1 Thermoelectric multiple valve
01/16/1991CN2069511U Combined valve
01/16/1991CN2069508U Automatic exhaust valve for heating radiator
01/16/1991CN1048515A Countergravity casting apparatus and method with magnetically actuated valve to prevent molten metal run-out
01/15/1991US4984766 Flow-control valve
01/15/1991US4984744 Fuel injection systems
01/15/1991US4984601 Unit apt to act upon the flow
01/15/1991US4984541 Valve stepping drive apparatus
01/15/1991CA1279121C Method for controlling the flow rate of a gas in a valve, and flow generatingdevice for use in said method
01/15/1991CA1279057C Low leakage solenoid valve
01/10/1991WO1991000458A1 Butterfly valve method and apparatus employing variably positionable pivot shaft
01/10/1991WO1991000456A1 Butterfly valve method and apparatus
01/10/1991WO1991000455A1 Butterfly valve method and apparatus
01/10/1991WO1991000453A1 Butterfly valve with intra-shaft actuator means
01/10/1991WO1991000452A1 Butterfly valves with actuators carried on valve plate
01/10/1991WO1990013795A3 Enhanced pressure measurement flow control system
01/10/1991DE3920893A1 Magnetic valve for heating medium flow of vehicle - provides linear flow with valve and seat supported at housing across pressure spring
01/10/1991CA2019088A1 Servo-controlled expansion valve for a volatile fluid
01/09/1991EP0406559A2 Countergravity casting apparatus and method with magnetically actuated valve to prevent molten metal run-out
01/09/1991EP0406444A1 Electromagnetic valve actuator
01/09/1991EP0406443A1 Electromagnetic valve actuator
01/09/1991CN2069059U Tap being able to controlling water level automatically
01/09/1991CN2069058U Electric valve for discharging ash
01/08/1991US4982902 Internal combustion engine
01/08/1991US4982803 Modulator and power-assisted steering circuit comprising such a modulator
01/08/1991CA1278843C Flow control system using boyle's law
01/08/1991CA1278691C Temperature sensitive solenoid valve in a scroll compressor
01/06/1991CA2016810A1 Countergravity casting apparatus and method with magnetically actuated valve to prevent molten metal run-out
01/03/1991DE4003227C1 EM fuel injection valve for IC engine - has two overlapping parts welded together as narrowed section of one part
01/03/1991DE4002619C1 Remote actuator for motor vehicle air conditioning - has fastening unit with sleeve or bush through which cable passes and which possesses two spaced apart attaching eyes
01/03/1991DE3920064A1 Schaltungsanordnung zum betrieb von elektromagnetischen verbrauchern Circuitry for operation of electromagnetic sumers
01/02/1991EP0405339A2 Diaphragm controlled differential pressure control valve
01/02/1991EP0405189A1 Electromagnetic positioning device
01/02/1991EP0404965A1 Device for step-driving valves
01/02/1991EP0404892A1 Controllable driving mechanism with actuator, and seal for this driving mechanism
01/02/1991CN2068631U Cover type automatic water gate
01/02/1991CN2068630U Hydraulic piston valve
01/02/1991CN2068622U Shape memory alloy self-controlling thermostatic switch valve
01/02/1991CN1048256A Electro-magnetic valve for controlling flow of fluid in pipe
01/02/1991CN1048255A Motor-driven valve
01/01/1991US4981282 Magnetically actuatable valve
01/01/1991US4981281 Solenoid controlled fluid flow valve
01/01/1991US4981280 Solenoid actuated fluid valve
01/01/1991US4981261 Shut-off valve for scald prevention
01/01/1991US4981155 Electrically operated valve assembly
12/1990
12/31/1990WO1991000459A1 Flight craft with fluid systems which incorporate butterfly valves, and butterfly valve methods and apparatus
12/31/1990CA2060311A1 Flight craft with fluid systems which incorporate butterfly valves, and butterfly valve methods and apparatus
12/31/1990CA2001627A1 Pilot operated water valve for livestock trough
12/27/1990WO1990015933A1 Microvalve
12/27/1990WO1990015922A1 Circuit for operating electromagnetic users
12/27/1990WO1990015742A2 Solenoid valve
12/27/1990WO1990015736A1 Solenoid valve
12/27/1990EP0404618A1 Electromagnetic valve for the flow control of a fluid in a pipe
12/27/1990EP0404082A2 Piezoelectric bending transducer and its usage
12/27/1990EP0389480A4 Pilot valve cartridge assembly
12/26/1990CN2068184U Jaw opening-adjustable magnetic valve with hand device
12/26/1990CN2068177U 定时阀 Valve timing
12/26/1990CN2068176U Multi-functional water-saving tap
12/26/1990CN2068174U Water-cutting self-stop valve
12/26/1990CN2068173U Automati switching feedwater valve
12/25/1990US4979542 Pulse modulated hydraulic valve
12/25/1990US4979529 Valves
12/25/1990US4979528 For shutting off fluid flow in a fluid conduit
12/22/1990CA2016421A1 Solenoid valve
12/22/1990CA2016420A1 Solenoid valve
12/20/1990DE4017382A1 Heat-engine plant for air-conditioning valve operation - opens and closes flaps by selective heating of wax in opposed piston engines controlled by thermostat
12/19/1990EP0403255A2 Automotive oil level control valve apparatus
12/19/1990EP0403144A2 Improvements in fluid flow valve assemblies
12/19/1990EP0402557A1 Improved handwheel for operating valves, gate valves and the like
12/19/1990EP0210254B1 Normally closed fluid switching logic element
12/19/1990CN2067784U Electromagnetic switching valve for instrument
12/18/1990US4978101 Solenoid controlled valve ofr liquid preparation
12/18/1990US4977923 Pilot-controlled water pressure-operated diaphragm shut-off valve
12/18/1990US4977922 Reversible poppet valve cartridge with single piece stem
12/18/1990US4977641 Lever handle assembly for sanitary fixtures
12/18/1990CA1278075C2 Ultrasonic flow-control system
12/13/1990WO1990015280A1 Quick opening solenoid actuated valve
12/13/1990WO1990015278A1 Apparatus comprising a valve
12/13/1990WO1990015277A1 Shutoff valve
12/13/1990WO1990014990A1 Diving regulator demand valve
12/13/1990DE3918499A1 Safety valve squeezing elastic tube - has memory metal wire with heat source to pull valve open
12/12/1990EP0401876A1 Hydraulically actuated valve
12/12/1990EP0401607A1 Method for manufacturing a microvalve and microvalve
12/12/1990EP0401468A2 Valve arrangement for the simultaneous opening and closing of two separated supply pipes for liquid or gaseous agents
12/12/1990EP0401390A1 Electromagnetic valve actuator
12/12/1990EP0328543B1 A mixer valve of the single lever type incorporating means for avoiding pressure surges during the final stage of lever movement in the valve closing direction
12/12/1990CN1047726A Faucet and shutoff valve for saving water
12/11/1990US4976460 Thermostatic valves
12/11/1990US4976405 Electromagnetically actuatable valve
12/11/1990US4976404 Flow control valve
12/11/1990US4976286 Four-way slide valve
12/11/1990US4976162 Enhanced pressure measurement flow control system
12/06/1990DE3918192A1 Gas regulation valve - has ceramic control element and aperture part suitable for corrosive media at relatively high
12/05/1990EP0401061A1 Modulator and servo steering circuit with such a modulator
12/05/1990EP0400846A2 Valves for fluids
12/05/1990EP0400688A2 Ultrasonic flow-control system
12/05/1990EP0400504A1 A high-speed solenoid valve for a fluid under pressure,e.g. for pneumatic circuits
12/05/1990EP0400482A2 Microvalve
12/05/1990EP0400395A2 Shock absorber