| Patents for F16K 37 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given (8,203) |
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| 12/17/1997 | CN2270863Y Magnetized filter for tap |
| 12/10/1997 | CN1167224A 阀门装置及空气检漏仪 Valve assembly and air leak |
| 12/04/1997 | WO1997045599A1 Modular valve position indicator |
| 12/02/1997 | US5694117 Alarm system for rising stem valves |
| 11/27/1997 | WO1997044645A2 Device for testing safety valves |
| 11/27/1997 | DE19620468A1 Safety valve incorporating pressure sensors linked to computer |
| 11/13/1997 | WO1997042481A1 Automatic valve test apparatus |
| 11/12/1997 | CN1164624A Flow cotnrol valve with flow meter |
| 11/11/1997 | US5687098 Device data acquisition |
| 11/11/1997 | US5685697 In the operation of a vacuum boost system in a vehicle |
| 11/11/1997 | US5685336 Device for monitoring the valve lift of a diaphragm valve |
| 11/04/1997 | US5684596 Method and apparatus for measuring axial and torsional loads on a valve stem |
| 10/30/1997 | DE19703042A1 Flow control device for hot water in vehicle heater |
| 10/28/1997 | US5680878 Method of measuring movement of an actuator valve |
| 10/23/1997 | WO1997039267A1 Hygienic valve having leakage detection |
| 10/23/1997 | DE19615176A1 Monitoring and safe-working method for motor driven valves in safety-critical situations e.g. reactor |
| 10/22/1997 | EP0802358A2 Check valve |
| 10/15/1997 | EP0800837A2 Three-way stopcock and flow rate control device in use thereof |
| 10/14/1997 | US5677500 Pressure reduction system testing |
| 10/07/1997 | US5673563 Pressure relief apparatus and method of use particularly for a refrigeration system |
| 10/01/1997 | EP0798502A1 Position or displacement sensor |
| 09/30/1997 | US5671775 Valve fluid pressure leakage signaling |
| 09/30/1997 | US5671635 Method and apparatus for monitoring of spring pack displacement of a motor-operated valve |
| 09/25/1997 | WO1997035133A1 Automatic solenoid control valve calibration |
| 09/24/1997 | EP0797080A2 Flow control valve with flowmeter |
| 09/24/1997 | EP0797035A1 Pneumatic actuator having an end-mounted control device |
| 09/23/1997 | US5669414 In a valve unit to control the flow of high-pressure fluid |
| 09/18/1997 | WO1997034309A1 Device and method for monitoring a mechanism provided with a sucking coil |
| 09/10/1997 | EP0794373A1 Process and device for the determination of a safety valve set pressure |
| 09/09/1997 | US5665898 Method and apparatus for testing solenoids in a safety system by bypassing the solenoid operated pilot valve |
| 09/09/1997 | US5664601 Relief valve with abnormal pressure indicator means |
| 09/09/1997 | CA2137172C Backflow prevention and detection system |
| 09/03/1997 | EP0793155A2 Method and equipment for determining the performance of a control valve |
| 09/03/1997 | EP0792428A1 An apparatus for controlling a valve |
| 08/26/1997 | US5660198 Flow compensated pressure control system |
| 08/21/1997 | WO1997018452A3 Process for testing the operation of fittings |
| 08/20/1997 | EP0790412A2 Hydraulic circuit selector |
| 08/13/1997 | EP0788573A1 Valves |
| 08/13/1997 | EP0646267B1 Solenoid energization indicator |
| 08/07/1997 | WO1997021984A3 Improved fluid pressure measuring system for control valves |
| 07/29/1997 | US5651284 For detecting the integrity of a bond |
| 07/22/1997 | US5650575 Method for determining the spring force of a closing spring upon the opening of a valve of a fuel injection valve and an apparatus for carrying out the method |
| 07/17/1997 | WO1997025560A1 Diaphragm valve |
| 07/16/1997 | EP0783645A1 Apparatus and method for use in testing gas pressure reduction equipment |
| 07/16/1997 | EP0783644A1 Dosing valve having seal failure detection |
| 07/15/1997 | US5647397 Diaphragm valve |
| 07/15/1997 | US5647396 Modular valve position indicator |
| 07/10/1997 | DE19600286A1 Compact control valve |
| 07/08/1997 | US5646600 Instrument for detecting potential future failures of valves in critical control systems |
| 07/03/1997 | WO1997023739A1 Flow compensated pressure control system |
| 06/19/1997 | WO1997021984A2 Improved fluid pressure measuring system for control valves |
| 06/18/1997 | CN2256498Y Built-in rod valve with open and close display device |
| 06/17/1997 | US5638862 Diaphragm valve |
| 06/11/1997 | EP0778434A1 Handle |
| 06/04/1997 | EP0746715A4 Method and apparatus for monitoring recirculation control system performance |
| 05/22/1997 | WO1997018452A2 Process for testing the operation of fittings |
| 05/09/1997 | WO1997016776A1 Acquisition of characteristic data of control device during its operation |
| 05/07/1997 | EP0771983A2 Position indicator for a valve |
| 05/02/1997 | EP0770505A1 Tire valve cap for measuring air pressure |
| 04/29/1997 | US5623963 Modular valve position indicator |
| 04/24/1997 | DE19642764A1 Measuring piston stroke in solenoid valve without taking actual inside dimension for vehicle |
| 04/17/1997 | WO1997013972A1 Combined pressurizing, flow measuring and flow splitting valve |
| 04/16/1997 | EP0643814B1 Process and device for testing a fitting operated by a medium |
| 04/15/1997 | US5620024 Relief valve operation detector |
| 04/10/1997 | WO1997013087A1 Electromagnetic valve |
| 04/09/1997 | EP0766801A1 Rotary valve position indicator and method |
| 04/09/1997 | CN1147300A Analog weighted binary absolute position encoder |
| 04/02/1997 | CN2251086Y Pipeline gas leakage closing valve |
| 04/01/1997 | US5616829 Abnormality detection/suppression system for a valve apparatus |
| 04/01/1997 | US5616824 Instrument for detecting potential future failures of valves in critical control systems |
| 03/26/1997 | EP0651868B1 Valve |
| 03/25/1997 | US5613516 Combination hydraulic pressure regulator and pressure switch |
| 03/11/1997 | US5609185 Valve indicator and handle assembly |
| 03/11/1997 | US5609183 Butterfly valve with sensing coil |
| 02/27/1997 | DE19633074A1 Automatically closable line valve for rocket |
| 02/25/1997 | US5606236 Two wire position sense and control of modulating gas valve or other electromechanical actuators |
| 02/25/1997 | US5605176 Position indicator for on/off valves |
| 02/23/1997 | CA2183949A1 Position indicator for on/off valve |
| 02/13/1997 | WO1997005417A1 Apparatus and method for use in testing gas pressure reduction equipment |
| 02/13/1997 | WO1997005002A1 Combined check valve and pressure sensor |
| 02/13/1997 | CA2317965A1 Apparatus and method for use in testing gas pressure reduction equipment |
| 02/12/1997 | EP0757808A1 Smart valve positioner |
| 02/12/1997 | EP0757780A1 Analog weighted binary absolute position encoder |
| 02/05/1997 | CN1142026A Gas timing valve |
| 01/30/1997 | WO1997003312A1 Non-return valve with operation controller |
| 01/29/1997 | CN2246226Y Heating user's valve |
| 01/14/1997 | US5594175 Apparatus and method for non-invasive diagnosis and control of motor operated valve condition |
| 01/14/1997 | US5594162 Valve stem gas leak detector |
| 01/02/1997 | EP0751326A2 Device for monitoring the lift of a diaphragm valve |
| 12/27/1996 | EP0750183A2 Strain gage method for measuring thrust and torque on valve stems that does not require calibrations against a known thrust and torque |
| 12/24/1996 | US5586576 Dosing valve having seal failure detection |
| 12/23/1996 | CA2179689A1 Strain gage method for measuring thrust and torque on valve stems that does not require calibrations against a known thrust and torque |
| 12/17/1996 | US5584319 Electro-optical valve-status supervision switch circuit for fire protection |
| 12/11/1996 | EP0746715A1 Method and apparatus for monitoring recirculation control system performance |
| 12/11/1996 | CN2242383Y Improved structure of water filtration valve |
| 12/10/1996 | US5583490 Rupture disk monitoring apparatus |
| 12/10/1996 | US5583434 Method and apparatus for monitoring armature position in direct-current solenoids |
| 12/07/1996 | CA2177431A1 Valve stem gas leak detector |
| 12/05/1996 | WO1996038687A1 Valve indicator and handle assembly |
| 12/05/1996 | CA2217337A1 Valve indicator and handle assembly |