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)
01/1991
01/16/1991CN2069510U Differential pressure oil-sealing wedge type elastic brake valve
01/09/1991EP0407044A1 A shutter system
01/09/1991EP0406447A1 Valve body for non-sliding gate valve
01/09/1991EP0174354B1 Distributor valve
01/02/1991EP0406046A1 Ceramic discs for valve and valve fitted with such discs
01/02/1991CN2068625U Valve
01/02/1991CN1011056B Guarantee valve for pressurized support movement
12/1990
12/27/1990WO1990015946A1 Gate valve
12/26/1990CN2068180U Seal type gate plate serous valve
12/19/1990EP0403355A1 Gate valve
12/19/1990CN1047909A Method to make independent from piston wear fluid tight seal of inlet and outlet ports of fluid in hydraulic appliance
12/18/1990US4978102 Aligning and seal ring retracting apparatus for plug type valve
12/12/1990EP0401888A2 Hard material pair of discs for a screwed valve with extended operating field
12/12/1990EP0401634A2 Metering valve for the metered delivery of color pigments particularly in apparatuses for mixing coloring substances
12/12/1990EP0401306A1 A stop valve
12/06/1990DE3918192A1 Gas regulation valve - has ceramic control element and aperture part suitable for corrosive media at relatively high
12/05/1990EP0400482A2 Microvalve
12/05/1990EP0400229A1 Gate valve
12/05/1990EP0400152A1 Flow rate control valve device and flow force reduction structure
11/1990
11/27/1990US4972878 Firetruck valve
11/20/1990US4971098 Valve and improved seat seal therefor
11/20/1990CA1276610C Gate valve
11/15/1990DE4013424A1 Modulated flow valve esp. for domestic refrigerator coolant - has plastically deformed portion of pipe around cylindrical axial section of sliding rod attracted by electromagnet
11/15/1990DE3915584A1 Hydraulic throttle slide valve for winding gear - incorporates angled surfaces to control axial flow forces
11/07/1990EP0396350A2 Switching valve for mixing hot and cold waters using lubricant tank
11/07/1990CN1046779A Low-speed, high-torque gerotor motor and improved valving therefor
11/06/1990US4968004 Shutoff and control valve
11/06/1990US4967787 Unitized disc flow control assembly for a restrictor valve
11/06/1990CA1275882C Damper plate sealing mechanism
10/1990
10/31/1990EP0395599A1 A passively actuated valve
10/31/1990EP0394821A2 Valve for gerotor motor
10/31/1990CN1010231B Operaitng gear for measuring valve
10/30/1990US4966186 Cartridge valve
10/27/1990CA2015686A1 Switching valve for mixing hot and cold waters using lubricant tank
10/25/1990DE4011266A1 Slide valve for controlling flow of gas or liq.
10/24/1990CN1046380A Mehtod for prolonging service life of dual-plate sluice valve and improving its reliability
10/24/1990CN1046379A Cool-heat water "roving bottom" type valve with ceramic seal plate
10/23/1990US4964432 Method and means for mounting valve member on valve stem
10/23/1990CA1275396C Unitary bearing and locator assembly for rotatable valves
10/18/1990WO1990012258A1 Airflow regulating valve
10/17/1990EP0392440A1 Shut-off armature
10/17/1990EP0392383A1 Sliding valve
10/17/1990CN2063998U Sluice valve with gas spacer
10/17/1990CN2063997U Rubber-lined sluice valve
10/16/1990US4962912 Rate of flow control valve
10/16/1990US4962785 Safety valves
10/16/1990CA1275283C Gate valve
10/16/1990CA1275265C Device for occluding an opening, and sliding gate having said device
10/10/1990CN2063593U Double shut-off gate valve
10/10/1990CN2063592U Tap joint capable of self-cut-off on water supply stop
10/03/1990CN2063189U Individually auto-closed water-saving tap
09/1990
09/26/1990EP0389284A2 An isolation valve used in a single crystal pulling apparatus
09/19/1990EP0387918A2 Method and apparatus for cleaning a valve sealing arrangement under dynamic stress
09/18/1990US4957139 Low-noise nozzle valve
09/18/1990US4957018 Mechanism for selectively locking and unlocking a translatable shaft
09/18/1990CA1274087A1 Pivotal or rotary sliding gate valves
09/12/1990CN2061997U Water-saving valve for water supply
09/12/1990CN2061996U Magnetic sampling valve
09/05/1990CN1045165A Method for sealing valve port
09/04/1990US4953595 Mud pulse valve and method of valving in a mud flow for sharper rise and fall times, faster data pulse rates, and longer lifetime of the mud pulse valve
08/1990
08/29/1990EP0384607A2 Actuated gate valve with manual override
08/28/1990US4951919 Seal for gate valve liners
08/28/1990CA1273328A1 Dual stage hydraulic actuator for expanding gate valve
08/23/1990WO1990009537A1 Main shut-off valve
08/22/1990EP0383186A1 Guillotine dampers with blade sealing means accommodative of thermal expansion forces
08/22/1990EP0382970A2 Gate valve with supplemental actuator
08/22/1990CN2060836U Gate valve all-sealed and swelled in two sides
08/22/1990CN1044845A Guillotine dampers with blade sealing means accommodative of thermal expansion forces
08/21/1990US4949939 Gate valves with seat protectors
08/16/1990DE3903781A1 Valve
08/15/1990CN2060494U Plunger internal elevating valve
08/13/1990CA2009818A1 Guillotine dampers with blade sealing means accommodative of thermal expansion forces
08/11/1990WO1990009538A1 Valve
08/11/1990CA2046322A1 Valve
08/07/1990US4946134 Pair of cooperating disks to control the delivery of liquid in so-called "sc" valves
08/02/1990DE3901632A1 Duct shut-off member
08/01/1990CN1044327A Sealing & blocking method by freezing for liquid-transport pipe-line and its equipment
07/1990
07/31/1990US4944488 Gate valve
07/31/1990US4944484 Gate valve with locking handles
07/31/1990US4944330 Disk type valve
07/26/1990WO1990008276A1 Lifting valve
07/26/1990WO1990008275A1 Valve body for non-sliding gate valve
07/25/1990EP0378589A1 Valve device.
07/19/1990DE3915980C1 Shut-off slide housing - has removable lid, inlet and sealed outlet adjoined by slide plate and connected operating rod
07/18/1990CN2059473U Water-saving valve
07/17/1990CA1271673A1 Throttle valve control device
07/11/1990CN2059205U Controlling device for unloading bulk cargo
07/05/1990DE3844306A1 Hydrostatic differential lock for motor vehicles
07/04/1990EP0376502A2 Method for changing the characteristic curve of a regulation valve under pressure and a regulation valve
07/04/1990CN2058951U Safety energy-saving gate valve
07/04/1990CN2058950U Water tap with direction changable, spray, splash-proof function
07/03/1990CA1271181A1 Gate valve
06/1990
06/13/1990EP0373123A2 Pair of cooperating disks to control the delivery of liquid in so-called "screw" valves
06/13/1990DE3913990C1 Liq. stop valve with cylindrical housing - which has end inlet and outlet, hollow valve seat, guide near inlet, and hollow valve plug
06/13/1990CN2058223U Regulating valve for cinder delivery
06/13/1990CN2058221U Magnetic sluice valve
06/12/1990US4933569 Shut-off valve for sprayer
06/12/1990US4932438 Valve provided with valve bodies made of a ceramic compound
06/06/1990CN2057983U Mechanical structure automatic water-saving apparatus
05/1990
05/30/1990CN1008203B Method for coupling two plastic constructive parts