Patents
Sitemap › F16 - Engineering elements or units; General measures for producing and maintaining effective functioning of machines or installations; Thermal insulation in general › F16K - Valves; Taps; Cocks; Actuating-floats; Devices for venting or aerating › F16K 15 - Check valves
Patents for F16K 15 - Check valves (18,131)
08/1979
08/28/1979CA1061221A1 Self-contained activated slide apparatus and methods of constructing and utilizing same
08/21/1979US4164958 Swing check valve
08/14/1979US4164238 Closing plate for a ring valve
07/1979
07/17/1979US4161163 Two cycle internal combustion engine
07/10/1979CA1058130A1 Valve closure parts
06/1979
06/28/1979WO1979000364A1 Valve
06/27/1979EP0002600A1 Check valve structure
06/05/1979CA1055901A1 Closing plate for a ring valve
05/1979
05/30/1979EP0001984A1 No-return valve
05/29/1979CA1055452A1 Valve retainer
05/22/1979US4155374 Internal check ball retainer
05/22/1979CA1054899A1 Liquid dispensing and vapor recovery system and valve assembly utilized therein
05/08/1979US4153073 Liquid dispensing and vapor recovery system and valve assembly utilized therein
04/1979
04/24/1979US4150925 Fast acting check valve
04/17/1979US4149834 Delivery valve, especially for rotary piston compressors
04/17/1979US4149560 Brake bleeder valve
04/10/1979US4148438 Anti-siphon spray head
04/10/1979US4148339 Guide means for indicating check valve
04/10/1979US4148338 Check valve
04/10/1979CA1052225A1 Respirator pressure-demand exhalation valve
04/03/1979US4147180 Condition responsive valve construction
03/1979
03/27/1979US4146069 Apparatus for rapidly inflating and pressurizing a dunnage bag
03/13/1979US4143853 Valve for use with a catheter or the like
03/06/1979CA1049881A1 Gas compressor valve
02/1979
02/27/1979US4141381 Swing check valve
02/27/1979US4141379 Check valve
02/13/1979US4139469 For transporting fluids under pressure as in chromatography
02/13/1979US4138929 Pressure responsive check valve
01/1979
01/23/1979CA1046896A1 Flow control valve
01/02/1979US4132246 Backflow prevention devices
01/02/1979US4132241 Flow control device
12/1978
12/26/1978US4131235 Dual-function valve
12/26/1978US4131135 One way check valve construction
12/20/1978EP0000012A1 Bypass valve for pumps and heating installations
12/19/1978US4130131 Compressor valve
12/19/1978US4130114 Fluid pressure measuring or testing system and bleed regulator valve therefor
12/19/1978CA1044555A1 Quick acting check valve
12/12/1978US4129145 Check valve assembly
12/12/1978US4129144 Stabilizing check valve
12/12/1978US4129143 Check valve, especially for vacuum-operated installations in motor vehicles
12/05/1978US4128111 Wafer swing check valves
11/1978
11/28/1978US4127369 Pressure valve for a rotary piston compressor
11/07/1978US4124164 Tamper proof safety cut-off fluid nozzle
10/1978
10/24/1978CA1040967A1 Center hinged flapper check valve
10/17/1978US4120332 Automatic detachable charging head for pressure tank
10/17/1978US4120318 Dampening means for swing check valve
10/10/1978CA1040050A1 Automatic vacuum stabilizing valve
10/03/1978US4117860 Pressure differential flow retardant valve
10/03/1978US4117856 Frostproof backflow preventer
09/1978
09/26/1978US4117281 Combination tire pressure monitoring switch and inflation valve
09/26/1978US4116212 Unidirectional flow control valve
09/26/1978CA1039148A1 Relief valve
09/19/1978US4115043 Suction valve of the piston compressor
09/12/1978US4112959 Adjustable check valve
09/05/1978US4111228 Respiratory valve, especially for anaesthetic circuits
09/05/1978CA1037926A1 Valve plate having improved suction gas flow path
08/1978
08/22/1978US4108203 Check valve assembly
08/15/1978CA1036603A1 Tetrahydro-1,3,5-triazine-2,6-diones, processes for their production and their use as herbicides
08/08/1978US4105044 Flow check valve with bias spring removal capability
07/1978
07/25/1978US4102364 Method of dunnage bag inflation
07/18/1978US4100940 Trickle emitter for subterranean irrigation
07/18/1978US4100935 Check valve for heat pump systems
07/18/1978US4100894 Flow restrictor
07/11/1978US4099544 Vent valve of an air pump
07/04/1978US4098850 Orifice device for air flow restriction
07/04/1978US4098581 Gas release device for use with laboratory glassware
07/04/1978US4098296 Variable area reed flow restrictor
07/04/1978US4098287 Drain control device
06/1978
06/20/1978US4095615 Check valve and siphon tube assembly employing same
06/13/1978US4094336 Back draft for exhaust fans and hoods
05/1978
05/30/1978US4091839 Ball check valve
05/23/1978US4090529 Clapper seal for check valves
05/23/1978US4090527 Backflow preventer and relief valve assembly
05/16/1978US4089348 Reed valve
05/09/1978US4088428 Discharge valve assembly for a compressor
05/09/1978US4088298 Check valve assembly
05/09/1978US4088147 Air chuck
05/02/1978US4086936 Variable seat check valve
04/1978
04/18/1978US4084606 Fluid transfer device
04/11/1978US4083184 System to supply air into the exhaust conduit of an internal combustion engine
03/1978
03/28/1978US4080988 Combination employing controlled flow check valve
03/28/1978US4080981 Antisiphon check valve
03/28/1978US4080980 Backflow preventing valve construction
03/21/1978US4079751 Check valve
03/21/1978US4079750 Vacuum delay valve
02/1978
02/28/1978US4076047 Reed valve
02/28/1978US4076043 High fatigue strength check valve
02/28/1978US4076037 Safety valve cap for inflatable bodies
02/14/1978US4073389 Dunnage bag fill valve device with integral combination baffle, plug retainer, and bladder separator
02/14/1978US4073311 Flow control valve
02/07/1978US4072167 Check valve with torsion spring and method of assembly
01/1978
01/31/1978US4071045 Check valve construction
01/24/1978US4070239 Ball check valve
01/24/1978US4070237 Paper making process
01/24/1978US4069840 Ball check valve
01/17/1978US4068680 Self-contained vent valve unit and system utilizing the same
01/10/1978US4067376 Tire pressure warning system
01/10/1978US4067356 Check valve for large conduits
12/1977
12/27/1977US4065237 Valve apparatus for expansible chamber
12/27/1977US4064897 Tire filler valve arrangement
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