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