Patents for F16K 51 - Other details not peculiar to particular types of valves or cut-off apparatus (6,025)
03/1990
03/06/1990US4905863 Vent for portable gas tank or the like
02/1990
02/27/1990US4903938 Micro flow control valve
02/27/1990US4903937 Isolation valve for vacuum and non-vacuum application
02/20/1990US4901751 Fluid control valve and system with leak detection and containment
02/20/1990CA1265975A1 Waste water restrictor
01/1990
01/31/1990CN2052096U Watering head of water tap
01/10/1990EP0349816A2 Drainage valve
01/02/1990US4890814 Discharge valve with handle lock
01/02/1990US4890640 Drainage valve
12/1989
12/12/1989US4886085 Vacuum check valve and method of control
11/1989
11/21/1989US4881574 Enclosed rotary disc air pulser
11/14/1989US4880029 Drain valve
10/1989
10/12/1989DE3838410A1 Shut-off valve for vacuum pumps
09/1989
09/13/1989EP0332167A1 Filtered stop
08/1989
08/22/1989US4858641 Shut-off valve
08/02/1989EP0325732A1 Plug for closing and sealing a cylindrical bore in a housing
07/1989
07/19/1989CN1034048A Double block and vent system
07/05/1989CN2040573U Antifreeze valve
06/1989
06/15/1989DE3740708A1 Vacuum valve
06/13/1989US4838520 Valve for a vacuum enclosure
06/06/1989US4836242 Pressure reducer for pure gases
05/1989
05/23/1989US4832077 Filtered stop
05/17/1989EP0316127A1 Double block and vent valve system
03/1989
03/29/1989EP0309181A2 Isolation valve for vacuum and non-vacuum application
03/07/1989US4809950 Valve slide with slide housing
02/1989
02/28/1989US4807847 Valved oil pan plug
02/22/1989EP0303860A2 Safety valve for the outer vessel of a double wall vacuum-insulated storage tank for low boiling liquified gases
02/14/1989US4804017 Brake bleeder valve apparatus having integral check valve and method for bleeding brakes
02/01/1989CN1030821A Static high-vacuum valve
01/1989
01/17/1989US4798223 Double block and vent valve system
01/05/1989DE3720001A1 Vacuum valve
01/03/1989US4795131 Vacuum controller
12/1988
12/28/1988EP0296442A1 Valve for vacuum container
12/07/1988EP0293570A1 Cut-off valve
11/1988
11/23/1988EP0292343A1 Drain valve for a tank, especially for heat-insulated tanks
11/23/1988EP0292115A2 A valve and filter assembly
11/23/1988CN87217105U Propelling greaseless vacuum valve
11/22/1988US4785962 Vacuum chamber slit valve
11/22/1988US4785851 Vacuum security valve having a buffer volume
11/17/1988EP0291399A1 Expander for pure gases
11/01/1988US4781217 Pulse-irrigation method and apparatus
10/1988
10/27/1988DE3711293A1 Rapid-closure straight-way (straight-through) valve of a vacuum protective system
09/1988
09/28/1988CN87214855U Anti-siphon valve
09/21/1988CN87216617U Water interruption delaying device for water tap
08/1988
08/23/1988US4765365 Faucet spring
07/1988
07/19/1988CA1239329A1 Flow control valve
07/07/1988DE3643069A1 Sliding valve
06/1988
06/28/1988US4753417 Gate valve for vacuum processing apparatus
06/28/1988US4753266 Valve assembly
06/28/1988US4753260 Fluid device
05/1988
05/31/1988US4747577 Gate valve with magnetic closure for use with vacuum equipment
04/1988
04/27/1988EP0264466A1 Bellow valve
04/21/1988DE3734050A1 Gasflaschenventil Gas cylinder valve
04/20/1988CN87207424U Anticorrosive vacuum valve
04/20/1988CN87106726A Liquid gas cylinder valve device
03/1988
03/22/1988US4732193 Fluid driven device connected into a fluid supply system
03/15/1988US4730996 Rotary compressor with two discharge valves having different frequencies
03/09/1988EP0258475A1 Vacuum sliding valve
01/1988
01/26/1988US4721282 Vacuum chamber gate valve
01/20/1988CN87208437U 组合真空阀 Combination vacuum valve
01/12/1988US4718637 High vacuum gate valve having improved metal vacuum joint
01/12/1988CA1231331A1 Adaptor for wafer valves
01/06/1988CN87202705U Device for storing and replacing the clack and stuffing in the valve
11/1987
11/24/1987US4708171 Drain valve
09/1987
09/10/1987DE3606952A1 Collecting tank with sealing and draining screw for water precipitated from compressed air
07/1987
07/21/1987US4681329 High vacuum gate valve having improved metal vacuum seal joint
07/02/1987DE3643152A1 Ultra high vacuum valve
05/1987
05/07/1987WO1987002752A1 Control stop for flushing system
04/1987
04/15/1987CN85107442A Globe valve having a dismountable seat for rapid maintenance
03/1987
03/31/1987US4653525 Fluid flow control valve
03/24/1987US4651776 Fluid pressure control valve for hydraulic actuator
03/17/1987US4649955 Pulsed gas supply
03/10/1987CA1218901A1 Slide gate valve for dry bulk discharging containers
03/03/1987US4647011 Magnetic valve for use with vacuum
02/1987
02/10/1987US4641677 Coaxial operating rod and packing seal for top-operated, bottom outlet valve in railway tank car and method of aligning same
02/10/1987CA1217694A Automatic cleaning and metering device
01/1987
01/06/1987US4633908 Manually operated mode-selecting valve device
12/1986
12/16/1986US4628958 Ring valve
12/09/1986US4627599 Sealing mechanism for high vacuum valve
11/1986
11/25/1986US4624444 Control stop for flushing system
09/1986
09/23/1986US4613111 Valve which is opened by reduced pressure
08/1986
08/26/1986US4607820 Rotating gate valve
08/20/1986EP0191716A2 Pulsator device for converting fluid pressure to a pulsating pressure
07/1986
07/08/1986US4598730 Flow control valve
05/1986
05/28/1986EP0182644A1 Fluid flow control valve
04/1986
04/29/1986US4584781 Low friction vacuum valve and drying apparatus
04/23/1986EP0045785B1 A fluid device
03/1986
03/05/1986EP0173571A2 Ball-type vacuum valve for leak detection apparatus
03/05/1986EP0173115A2 Solenoid valve for vacuum application
01/1986
01/14/1986US4564040 Faucet and liquid supply tube therefor
01/07/1986US4562992 Seal device for gate valve
12/1985
12/24/1985US4560141 Vacuum gate valve
12/17/1985US4558587 Ball-type vacuum valve for leak detection apparatus
10/1985
10/29/1985US4549440 For internal combustion engines
10/16/1985EP0158440A2 Fluid sampling valve
07/1985
07/17/1985EP0148480A2 Valve opened by vacuum
07/02/1985US4526341 Pneumatic shut-off valve
06/1985
06/04/1985US4520993 Metering valve
05/1985
05/21/1985CA1187376A1 Valve assembly
05/15/1985EP0062060B1 Back-flow prevention valve
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