Patents
Patents for F16K 3 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing (13,986)
10/1989
10/04/1989CN2045447U 气动阀门 Pneumatic valves
10/03/1989US4871143 Gate valve with supplemental actuator
09/1989
09/27/1989EP0334401A2 Method and apparatus for controlling the entry of a medium into a leakage space
09/26/1989CA1260908A1 Gate valve having a secondary seal
09/26/1989CA1260261A2 Sliding gate valve
09/26/1989CA1260260A2 Well nozzle
09/26/1989CA1260259A2 Stationary plate
09/26/1989CA1259977A1 Plastic gate valve
09/20/1989EP0333015A2 Flow-control valve
09/19/1989US4867202 Curtain valve arrangement
09/19/1989US4867197 High pressure valve
09/19/1989EP0318577A4 Flow control device for intravenous administration of fluids.
09/19/1989CA1259595A1 Tap or valve
09/12/1989US4865071 Flow valve
09/07/1989DE3805764A1 Gate valve
09/06/1989CN2044025U Auto-close valve for cutting off water
09/05/1989US4863144 Plug valve
09/05/1989US4862915 Rotary actuated disc valve
08/1989
08/30/1989EP0329800A1 Valve top
08/30/1989EP0137842B1 Fire resistant gate valve
08/30/1989CN2043697U Valve for controlling liquid
08/30/1989CN2043696U Seal oil-filling device for sluice plate of gas valve
08/24/1989WO1989006764A3 Process and device for controlling the admission of a medium into at least one leakage chamber of a valve device
08/24/1989DE3812357A1 Sliding valve for foundry equipment
08/23/1989CN2043306U Mandrel type multifunctional water-saving tap
08/22/1989US4858641 Shut-off valve
08/16/1989CN2042917U Manual hydraulic gate valve
08/15/1989US4856756 Well bottom release valve
08/15/1989US4856557 Sliding metal seal valve mechanism
08/09/1989EP0326839A2 Sealing system with an annular, elastic and deformable sealing and its application
08/09/1989EP0326787A1 Gate valve
08/09/1989CN2042543U Flow adjusting valve
08/09/1989CN2042542U Simple dual-function water tap
08/09/1989CN2042541U Double functional water tap
08/03/1989DE3835363A1 Method of controlling at least one leakage space of a valve device and device for carrying it out
08/03/1989DE3801569A1 Method and device for the construction of a valve seat with a seal arranged on the housing side
08/03/1989DE3801561A1 Valve device
08/02/1989EP0325980A2 Pivoting sliding valve
08/02/1989EP0325895A1 Separable valve assembly
08/02/1989CN2042140U Leakage-proof fluid controlling valve
07/1989
07/27/1989WO1989006764A2 Process and device for controlling the admission of a medium into at least one leakage chamber of a valve device
07/27/1989WO1989006763A1 Process and device for protection and support of a seal in a valve arrangement
07/26/1989EP0325200A2 Rotary valve
07/25/1989CA1257858A1 Pre-loaded valve follower sealing apparatus
07/25/1989CA1257857A1 Globe valve having a dismountable seat for rapid maintenance
07/19/1989EP0324698A1 Valve for the transfer of powdery or liquid products under controlled air pressure
07/18/1989US4848730 Structure for sealing and affixing a cover on a valve body and method of manufacture
07/18/1989US4848403 Flow-control valve
07/12/1989CN2040975U Purge valve for oil-gas storage and transportation line of oil field
07/12/1989CN2040969U Multipurpose auto-shut-off water valve
07/11/1989US4846442 Gate valve with lock ring
07/11/1989US4846216 Fluid power valve device
07/11/1989US4845819 Method for coupling two plastic constructive parts used in valve, joint and pipe devices
07/05/1989EP0253803B1 Slide valve and coupler assembly
07/04/1989US4844292 Mechanism for actuating an opening and shut-off valve
06/1989
06/29/1989WO1989005937A1 Fluid flow control valve
06/28/1989EP0321774A2 Sliding valve with volume adjustment
06/28/1989CN2040201U Hydraulic plate-type gate valve with a build-in rod
06/28/1989CN1004646B Throttle valve
06/21/1989CN2039781U Energy-saving water valve
06/15/1989DE3546557C2 Pressure relief valve
06/14/1989CN2039372U Multi-functional valve for combustible gas
06/13/1989US4838520 Valve for a vacuum enclosure
06/13/1989US4838301 Draining valve for waste paper processing appliances
06/07/1989EP0318577A1 Flow control device for intravenous administration of fluids.
06/07/1989CN2038972U Valve rod protector for combustion-gas valve
06/07/1989CN1033311A Safety-stop valve particularly to be used between mixer and shower to prevent scalding
06/06/1989US4836245 Control valve
06/06/1989US4836243 Gate valve with hydraulic actuator
06/06/1989US4836238 Unitary valve filter combustion
05/1989
05/31/1989EP0318453A2 Sanitary valve
05/31/1989EP0318380A1 Modulating gas-feeding mechanism for a burner of an apparatus of the gas boiler kind
05/31/1989EP0174340B1 Anti-cavitation low-noise control valve cage trim for high pressure reducing service in liquid or gaseous flow
05/31/1989CN2038580U Differential leak-proof stop valve
05/30/1989US4834133 Control valve
05/30/1989CA1254918A1 Bottom sheet feeding apparatus employing a combination slide plate and vacuum valve
05/30/1989CA1254813A1 Paint circulation adapter and coupler
05/24/1989EP0137779B1 Metering slot configuration for hyraulic control valves
05/23/1989US4832081 Control valve
05/18/1989WO1989004445A1 System for conveying bulk materials
05/18/1989WO1989004433A1 A pair of seal members of hard material having a low friction coefficient
05/18/1989DE3737755A1 Locking mechanism for a vacuum slide valve
05/16/1989CA1254107A1 Straightway or multi-directional control valve of wafer construction
05/16/1989CA1254106A1 Sanitary single-lever water valve
05/11/1989DE3736806A1 Valve
05/11/1989DE3736786A1 Shut-off valve for interrupting an oil supply line in an oil burner
05/10/1989EP0315302A1 Fluid flow control valve
05/10/1989EP0314832A1 Closing mechanism for vacuum gate
05/10/1989CN1032845A Valve sealing structure of bracing type
05/03/1989CN1004095B Device for changing number of part streams of flowing medium
04/1989
04/26/1989EP0224553B1 A device for changing the number of part streams of a flowing medium
04/26/1989CN2036606U Multipurpose water-economizer
04/25/1989US4824074 Bi-directional gate valve
04/25/1989US4823832 Cartridge valve
04/19/1989EP0312364A2 Flow valve
04/19/1989CN2036229U Water-saving tap for face-washing device
04/18/1989US4821998 Mechanism for operating a metering valve
04/18/1989US4821765 Valve for faucet or the like
04/13/1989DE3744730C1 Throttle valve
04/12/1989EP0311598A2 Valve cartridge for a one-way valve