| Patents for F16K 35 - Means to prevent accidental or unauthorised actuation (4,027) |
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| 07/30/1992 | DE4102304A1 Valve with movable slider acting as lock - has eccentric at end of slider to lock between abutment and engaging faces |
| 07/29/1992 | EP0495925A1 Stop cock for a liquid container. |
| 07/29/1992 | CN2111412U Safety tap |
| 07/14/1992 | US5129420 Cut-off valve |
| 06/28/1992 | WO1992012377A1 Low spill identical half coupling |
| 06/28/1992 | WO1992012372A1 Coupling security and safety latch system |
| 06/17/1992 | CN2107574U Gas theft-proof switch |
| 06/10/1992 | EP0489456A1 Dispensing devices with multiple-way tap |
| 05/27/1992 | EP0487215A2 Dump valve assembly |
| 05/26/1992 | US5116018 Lockout modules |
| 05/26/1992 | US5115834 Valve-locking device |
| 05/23/1992 | CA2054469A1 Dump valve construction |
| 05/13/1992 | CN2104350U 变压器用阀门 Transformer valves |
| 05/05/1992 | CA1299977C Viscous drive with variable pump action |
| 04/16/1992 | WO1991005707A3 Stop cock for a liquid container |
| 04/08/1992 | CN2101152U Autematic turn-off water tap when water cut-off |
| 03/31/1992 | US5099883 Low spill identical half coupling |
| 03/10/1992 | US5094265 Apparatus for locking a valve actuating member |
| 03/04/1992 | EP0473463A2 Valve operating handle |
| 03/03/1992 | US5092359 Handle enclosure for valves |
| 02/25/1992 | US5090449 Coupling security and safety latch system |
| 01/29/1992 | CN2094653U Duty controlling type water saving valve |
| 01/22/1992 | CN2093946U Safety cover of domestic gas pipeline switch |
| 01/22/1992 | CN2093932U Lock-control switch |
| 01/21/1992 | US5082023 Single-handle faucet |
| 12/25/1991 | CN2091395U Valve open angle display and self-lock device |
| 12/24/1991 | US5074134 Lockable adjustment mechanism |
| 12/17/1991 | US5072913 Spring loaded locking handle for angle cock or the like |
| 12/06/1991 | WO1991019121A1 Improved ported gate valves, method and apparatus |
| 12/03/1991 | US5069421 Safety device for a pneumatic tool |
| 11/19/1991 | US5065787 Choke valve safety device |
| 10/29/1991 | US5060909 Shut-off valve for fluids |
| 10/22/1991 | US5058758 Compressed gas cylinder valve and gauge protector |
| 10/22/1991 | US5058622 Valve lock assembly |
| 10/16/1991 | CN2086829U Self-closed water valve |
| 10/01/1991 | US5052655 Ball valve lock plate |
| 09/18/1991 | CN2085013U Sealed valve security device |
| 09/18/1991 | CN2085012U Valve security device with apparent rods |
| 09/10/1991 | US5046523 Lock core service valve |
| 09/08/1991 | CA2011796A1 Valve cover |
| 08/22/1991 | DE4005424A1 Shutter valves for gas in adjacent branched pipes - has each shutter controlled by single drive, opening one shutter while closing other and vice=versa |
| 08/13/1991 | US5039062 Tamper proof valve |
| 08/08/1991 | DE4002926A1 Safety valve with variable operating pressure - has adjusting screw and lock-nut enclosed in close-fitting plastics housing |
| 08/06/1991 | US5037066 Valve for cylinders of compressed or liquefied gas |
| 07/17/1991 | CN2081025U 锁式阀门 Lock valve |
| 07/09/1991 | US5029808 Lock assembly for valve |
| 07/02/1991 | US5027857 Switching microelectrovalve having a single diaphragm |
| 06/26/1991 | CN2079692U Angle type safety switch with over-current auto-closing function |
| 06/25/1991 | US5026026 Locking device for gas regulator and control apparatus |
| 06/12/1991 | EP0432070A1 Inviolable dispensing tap provided with a taxation device |
| 05/28/1991 | US5018552 Valve assembly for packing fluid under pressure and packing provided with such assembly |
| 05/22/1991 | CN1012652B Shut-off valve for fluids |
| 05/14/1991 | US5014528 Tamper-proof locking mechanism for quarter turn valves |
| 05/08/1991 | EP0426639A1 Single-handle faucet |
| 05/01/1991 | CN2076192U Mechanically posioning butterfly valve with lock |
| 04/07/1991 | WO1991005707A2 Stop cock for a liquid container |
| 04/07/1991 | CA2065360A1 Stop cock for a liquid container |
| 04/02/1991 | US5004210 Gate valve |
| 04/02/1991 | US5003797 Lockout device for valves with lever handles |
| 03/19/1991 | CA1281667C Safety cap for valve on high-pressure cylinder |
| 02/26/1991 | US4995421 Fluid control |
| 02/26/1991 | CA1280624C Interlock valve and control |
| 01/15/1991 | US4984667 Coupling device |
| 12/19/1990 | CN2067781U Self-locking safety ball valve |
| 12/18/1990 | US4977641 Lever handle assembly for sanitary fixtures |
| 12/05/1990 | EP0401072A1 Valve assembly for a packing under fluid pressure and packing provided with such an assembly |
| 11/20/1990 | US4971289 Valve assembly and locking means therefor |
| 11/20/1990 | US4971092 Pivotal control housing |
| 11/06/1990 | CA1275981C Vapor valve |
| 11/06/1990 | CA1275821C Theft-resistant valve |
| 10/31/1990 | EP0394860A1 Hydraulic valve |
| 10/16/1990 | US4962785 Safety valves |
| 09/26/1990 | CN2062776U Protective device for valve |
| 09/19/1990 | EP0387634A1 Armature with stroke limitation |
| 09/05/1990 | CN2061637U Self-closing valve for liquefied gas |
| 08/22/1990 | CN2060837U Multi-purpose valve |
| 08/16/1990 | EP0321500B1 Stop valve for fluids |
| 08/07/1990 | US4946130 Flow control device |
| 08/07/1990 | US4945940 Tamper proof backflow prevention assembly |
| 07/31/1990 | US4944484 Gate valve with locking handles |
| 06/27/1990 | EP0375475A1 Security device for assembling both parts of a tap body |
| 05/29/1990 | US4928506 Anti-theft locking valve for motor vehicles |
| 05/23/1990 | EP0369600A1 Stop valve |
| 05/22/1990 | US4926900 Valve assembly and locking means therefor |
| 04/04/1990 | CN2055558U Fire-proof regulating-valve actuator |
| 04/03/1990 | US4913190 Detent mechanism for a control valve |
| 03/27/1990 | US4911198 Securing system for automatically operated valve systems |
| 03/20/1990 | US4909275 Latching handle |
| 03/15/1990 | DE3830312A1 Handle for a sanitary fitting |
| 03/14/1990 | CN2054511U Safety throttling valve for water and gas |
| 03/07/1990 | CN2054133U Lockset |
| 03/06/1990 | US4905863 Vent for portable gas tank or the like |
| 02/28/1990 | EP0355457A2 Valve structure with key-operated lock |
| 02/28/1990 | EP0355301A2 Gate valve |
| 02/13/1990 | US4899781 Tamper indicator assembly for valves and like devices |
| 02/07/1990 | CN2052472U Controlled valve device by lock |
| 01/24/1990 | CN1039095A Pressure-controlled self-locked valve |
| 01/03/1990 | EP0349377A1 Microelectric switch valve with one single diaphragm |
| 01/03/1990 | CN2050520U Multifunction protective cover for valve |
| 01/02/1990 | US4890506 Locking hand lever for operating a valve or the like |