Patents for F16K 17 - Safety valves; Equalising valves (21,027)
11/1987
11/10/1987US4704951 Ventilation system for an isolation enclosure
11/10/1987CA1229104A1 Flow check prevention mechanism
11/10/1987CA1229053A1 Plumbing test plug apparatus
11/04/1987EP0244314A1 Rapidly opening relief valve for a hydropneumatic suspension element of a heavy loads vehicle
11/04/1987CN87202687U Complete opening type spring safety valve for vapour
10/1987
10/29/1987DE3700822C1 Safety shut-off valve
10/29/1987DE3613761A1 Safety valve
10/27/1987US4702268 To permit gas flow
10/22/1987WO1987006319A1 Safety valve
10/22/1987WO1987006318A1 Check valve
10/21/1987EP0241952A1 Pressure relief valve
10/20/1987US4700750 For restricting the flow of vapors
10/20/1987US4700742 Automatic shut-off device
10/20/1987CA1228279A1 Fuel pressure regulator
10/15/1987DE3612393A1 Non-return valve
10/14/1987CN87203143U Directly acting type sylphon bellows reducing valve
10/13/1987US4699355 Fail-safe fluid piloted valve positioner with hydromechanical position lock
10/13/1987US4699171 Multiple port relief valve
10/13/1987US4699166 Hydraulic fuse valve assembly
10/08/1987WO1987005980A1 Combined shut off and check valve
10/07/1987CN86209207U Compression release valve with pressure detection device
10/06/1987US4697616 Fluid flow control apparatus
10/06/1987US4697613 Pressure compensated flow rate controllers
09/1987
09/30/1987EP0238828A2 Self-regulating deicer valve
09/29/1987US4696325 Sensing of fire installation water valves being closed
09/29/1987CA1227395A1 Modulating pressure operated pilot relief valve
09/24/1987DE3609857A1 Device for safeguarding gasline systems, in particular against fire
09/23/1987EP0238160A2 Roll-over valve
09/23/1987CN87101799A Hydraulic shock-absorber of beat and its application in valves parts
09/22/1987US4694860 Fluid-flow isolation and control apparatus and method
09/22/1987US4694847 Roll-over valve with sealing ball
09/22/1987CA1227104A1 Gas pressure regulator with reversible setting rod
09/16/1987EP0237456A1 Hydraulic vibration damper and its use in valves and the like
09/16/1987CN86207012U Deadweight type safety valve
09/11/1987WO1987005375A1 Shut-off valve and method for using same
09/10/1987DE3607516A1 Safety vacuum valve for spray cans filled with compressed air as propellent
09/09/1987EP0236018A2 Cryogenic refrigerator compressor with externally adjustable by-pass/relief valve
09/09/1987EP0235766A2 Safety valve for household appliances
09/08/1987US4691893 Fail safe gate valves and actuators therefor
09/08/1987US4691734 Valve seals
09/08/1987US4691729 Reverse-buckling rupture disk with replaceable disk and blade
09/08/1987CA1226507A1 Automatic shut off valve
09/02/1987EP0234801A2 Fluid control valve
09/02/1987CN87102179A Supply cylinder shut-off and flow control valve
09/02/1987CN87101604A Fluid-flow isolation and control apparatus and method
09/02/1987CN86206338U 压力控制阀 Pressure control valve
09/01/1987US4690170 Safety gas valve with timer
09/01/1987US4690169 Combined shut off and check valve
08/1987
08/27/1987WO1987005134A1 Modulating pressure operated pilot relief valve
08/26/1987EP0233775A2 Supply cylinder shut-off and flow control valve
08/26/1987EP0233604A2 Pressure regulator
08/25/1987US4688754 End assembly for control valves
08/25/1987US4688592 Earthquake tremor responsive shut off valve
08/19/1987EP0232478A2 Device for compensating pressure waves in closed systems such as conveying pipes or the like
08/18/1987US4687177 Device for adjusting the switching time of a valve member
08/18/1987US4687022 Pressure relief valve and regulator
08/13/1987WO1987004766A1 Fluid restricting valve
08/13/1987WO1987004745A1 Fluid-flow isolation and control apparatus and method
08/12/1987CN85109329A Precursory overflow valve
08/11/1987US4685486 Condensate separating and discharging device with apertured float cover
08/05/1987EP0230715A1 Variable rate flow controller
08/04/1987US4683910 High-speed protective check valving for pressure transducers and the like
07/1987
07/30/1987WO1987004504A1 Automatic fluid flow shutoff device
07/29/1987EP0230150A2 Diaphragm-type antidrip valve
07/29/1987EP0229841A1 Reducing valve
07/28/1987US4682759 Relief valve for hydraulic systems
07/28/1987US4682619 Reverse-buckling rupture disk
07/28/1987CA1224695A1 Fuel pressure regulator
07/28/1987CA1224692A1 Valve for high pressure fluid container
07/21/1987US4681297 Adjustable pressure regulating solenoid valve
07/21/1987US4681132 Check valve with preset cracking pressure
07/21/1987US4681130 Combined pressure regulated and check valve
07/21/1987US4681088 Freeze protection valve for solar heaters
07/21/1987CA1224446A1 Liquid flow rate controller
07/15/1987EP0228514A1 Aseptic constant flow valve
07/14/1987US4679596 Pressure relief valve
07/14/1987US4679586 Pilot operated relief valve
07/14/1987US4679581 Fuel tank vent valve
07/14/1987US4679579 Method and apparatus for controlling the pressure of gases flowing through a conduit
07/08/1987EP0228149A2 Pressure release vent
07/08/1987CN86202310U Highly sealed explosion-proof tyre valve
07/08/1987CN86107539A Pressure reducing valve with hydraulic air-operated accumulator
07/07/1987CA1223855A1 Fail-safe actuator for rotary valves
07/01/1987EP0227541A1 Pressure relief valve with integrated pilot valve
07/01/1987EP0227316A1 Dampers
07/01/1987EP0227212A1 Automatic overflow control apparatus for a pipeline
07/01/1987EP0226774A2 Pilot operated pressure control valve
06/1987
06/30/1987US4676266 Pressure relief device
06/30/1987CA1223499A1 Low pressure high temperature safety valve
06/24/1987EP0226298A1 Inertia valves
06/23/1987US4674530 Pressure relief device for vessels
06/16/1987US4672996 Self-regulating valve
06/16/1987US4672995 Redundant pilot valve control system
06/16/1987EP0225435A1 Heat sensitive valve
06/10/1987CN86206955U Control valve with range of pressure
06/10/1987CN86206815U Combined safety angle valve
06/09/1987US4671786 Overpressure safety valve
06/09/1987US4671319 Autonomous assistance device for a safety valve
06/09/1987CA1222737A1 Ball valve with emergency sealing device
06/09/1987CA1222676A1 Adjustable stop in the bore of a device