| 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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| 06/03/1992 | CN1061650A Non-contact indicator for flow ratt of liquid |
| 05/27/1992 | CN2105605U Contactless liquid flow rate indicating device |
| 05/26/1992 | US5115672 System and method for valve monitoring using pipe-mounted ultrasonic transducers |
| 05/19/1992 | US5113901 Sewer relief valve |
| 05/14/1992 | DE4035656A1 Automatic combined control system for fluid or gas lines - uses main and auxiliary sliders with monitoring of respective displacements |
| 05/12/1992 | US5111690 Valve stem load monitoring system with means for monitoring changes in the valve yoke elongation |
| 05/06/1992 | EP0187160B1 Sensing of fire installation water valves being closed |
| 05/05/1992 | US5109692 Diagnostic apparatus and method for fluid control valves |
| 05/05/1992 | US5109675 Valve position sensing circuit |
| 04/28/1992 | US5107891 Safety device for gas welding |
| 04/08/1992 | EP0478668A1 Pneumatic operated valve data acquisitioner. |
| 04/08/1992 | CN2101153U Water tap magnetization device |
| 04/07/1992 | US5101856 Electromagnetic directional control valve |
| 04/01/1992 | EP0478100A2 Shut-off device for a gas duct |
| 03/19/1992 | WO1992004569A1 A valve equipped with a position detector and a micropump incorporating said valve |
| 03/19/1992 | WO1992002750A3 Position indicating control valve |
| 03/17/1992 | CA1297577C Monitoring of movable components |
| 03/17/1992 | CA1297378C Position detector for clapper of non-return valve |
| 03/04/1992 | CN1015736B Position detector for clapper of non-return valve |
| 03/03/1992 | US5092158 Apparatus for testing leak detectors |
| 03/01/1992 | WO1992003677A1 Combined control and regulating valve for liquids or gases |
| 03/01/1992 | CA2089364A1 Combined control and regulating valve for liquids or gases |
| 02/25/1992 | US5090447 Transparent ball valve assembly |
| 02/25/1992 | US5090239 Strain sensing valve |
| 02/12/1992 | CN2095979U Double effect valve for air flow control |
| 02/12/1992 | CN2095976U Automatic cut-off valve for combustion gas bottle leakage |
| 02/11/1992 | WO1992002750A2 Position indicating control valve |
| 02/11/1992 | CA2067143A1 Position indicating control valve |
| 02/04/1992 | US5086273 A.C. electromagnetic system for determining position of an encased movable electrically conductive element |
| 02/04/1992 | US5085241 Process for controlling a leakage cavity of a valve and an apparatus therefor |
| 01/29/1992 | CN2094661U Pressure release valve |
| 01/28/1992 | CA1295032C Monitor for testing the operating condition of a nonreturn valve |
| 01/22/1992 | EP0467555A1 Device for determining on axial loads on a cylindrical member |
| 01/22/1992 | CN2093933U Hydraulic gate valve with non-contact level-limit switch |
| 01/14/1992 | US5080120 Replaceable valve seat |
| 01/10/1992 | WO1992001185A1 Measuring and regulating valve |
| 01/01/1992 | CN2092008U Indicating valve for pressure regulation of engine oil |
| 12/31/1991 | US5076321 Flow sensitive fluid shutoff safety device |
| 12/31/1991 | US5076308 Indicator for measuring amount of valve opening |
| 12/26/1991 | WO1991019967A1 Apparatus for testing leak detectors |
| 12/25/1991 | CN2091395U Valve open angle display and self-lock device |
| 12/18/1991 | CN2090908U Digital locking equalising valve |
| 12/17/1991 | CA1293159C Auxiliary knob for gas valve to annunciate open condition |
| 12/12/1991 | WO1991019168A1 Magnetic sensing method and system |
| 11/27/1991 | CN2089554U Automatic monitoring stop valve |
| 11/13/1991 | EP0455678A1 Indicating device for rotatably mounted component parts. |
| 10/31/1991 | WO1991016562A1 Compact multi-stage pressure reducing valve |
| 10/16/1991 | CN2086835U Multifunctional valve for mixing hot with cold water in single-chamber |
| 10/16/1991 | CN1014354B Testing means for operation pressure of safety valve |
| 10/16/1991 | CN1014353B Monitor for testing operating condition of nonreturn valve |
| 10/15/1991 | US5056374 Quickly installed load measuring apparatus and associated system |
| 10/15/1991 | CA1290588C Testing device for pilot valves |
| 10/09/1991 | CN1014261B Method and apparatus for controlling leakage-chamber of valve |
| 10/08/1991 | US5056046 Pneumatic operated valve data acquisitioner |
| 09/17/1991 | US5048329 Hydraulic valve test device |
| 09/11/1991 | EP0288521A4 Check valve testing system |
| 09/10/1991 | US5046528 Stopcock valve |
| 08/28/1991 | CN2083666U Central heating inlet valve |
| 08/13/1991 | CA1287550C Process and an apparatus for the control of a leakage cavity of a valve |
| 07/31/1991 | EP0439037A1 Armature |
| 07/30/1991 | USRE33649 Butterfly valve having a function for measuring a flow rate and method of measuring a flow rate with a butterfly valve |
| 07/30/1991 | US5035195 Valve shut-off flag |
| 07/30/1991 | CA1287033C Post assembly for a buried valve |
| 07/24/1991 | EP0438065A2 Threaded valve assembly, especially for a flow control valve |
| 07/17/1991 | EP0406331A4 Mounting of alarm switches to valves |
| 07/16/1991 | US5031660 Mounting of alarm switches to valves |
| 07/09/1991 | US5029597 Controller for controlling the operation of a motor operated valve combination |
| 07/03/1991 | CN2080125U Improved mash gas safety control valve |
| 07/02/1991 | US5027853 Limit switch replacement system and universal bracket |
| 06/05/1991 | EP0430390A1 Failure indicating rupture disk assembly |
| 06/04/1991 | US5020773 Actuator assembly with permanently mounted monitoring system |
| 05/27/1991 | CA2009039A1 Rupture disk failure indicating apparatus |
| 05/15/1991 | CN2077071U Domestic pipe gas safety valve |
| 05/15/1991 | CN2077069U High magnetic energy-saving voltage regulator |
| 05/01/1991 | CN2076192U Mechanically posioning butterfly valve with lock |
| 04/23/1991 | US5009101 Method and apparatus for monitoring and measuring dynamic loads in thrust inducing systems |
| 04/17/1991 | CN2075287U Electromagnetic valve for titration |
| 04/16/1991 | US5008841 Non-invasive system and method for inspection of valves |
| 04/02/1991 | US5004011 Position indicating control valve |
| 03/27/1991 | CN1012207B Double block and vent system |
| 03/21/1991 | WO1991003671A1 Sealing arrangement for a double-seal valve |
| 03/21/1991 | DE3929431A1 Dichtungsanordnug fuer ein doppeltdichtendes ventil Dichtungsanordnug for a double-sealing valve |
| 03/19/1991 | US5000040 Method and apparatus for remote monitoring of valves and valve operators |
| 03/13/1991 | EP0270542A4 Motor operated valve analysis and testing system |
| 03/13/1991 | CN2073065U Start and stop controller of valve |
| 02/26/1991 | US4995586 Solenoid valve |
| 02/06/1991 | CN2070855U Signal valve |
| 01/30/1991 | EP0410317A2 A non-invasive system and method for inspection of valves |
| 01/23/1991 | CN2069959U Multi-functional domestic plg pressure regulator |
| 01/22/1991 | US4986303 Faucet assembly |
| 01/16/1991 | EP0252143A4 Motor operated valve analysis and testing system with monitoring of spring pack movement through torque switch post |
| 01/09/1991 | EP0406331A1 Alarm switches and mounting of alarm switches to valves. |
| 12/27/1990 | WO1990015977A1 Fluid control valve and system with leak detection and containment |
| 12/27/1990 | WO1990015948A1 Pneumatic operated valve data acquisitioner |
| 12/18/1990 | US4978947 Rupture disk assembly |
| 12/18/1990 | US4977782 Device for measuring the torque of a valve moved by an actuator |
| 12/18/1990 | US4977778 Check valve testing system |
| 12/11/1990 | US4976144 Diagnostic apparatus and method for fluid control valves |
| 12/05/1990 | EP0400818A1 Rupturable fluid flow indicator |
| 11/28/1990 | EP0399316A1 Handwheel for a gas cylinder valve |