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)
05/1987
05/27/1987CN86201688U Automatic drain valve in sewer
05/26/1987US4668172 Compressor having discharge valve means adapted to enhance the coefficient of performance of the compressor
05/26/1987US4667697 Unitized check valve
05/26/1987US4667696 Flow valve
05/26/1987US4667570 Integral hydraulic blocking and relief valve
05/21/1987WO1987003062A1 Pressure relief and vacuum vent valve
05/21/1987DE3601403C1 Valve
05/19/1987US4665943 Poppet valve
05/13/1987EP0221825A1 Hydraulic fluid flow restrictor positioned between distributing and receiving elements
05/12/1987US4664154 Reed valve
05/07/1987WO1987002752A1 Control stop for flushing system
05/06/1987CN86205936U Valve-type valve inside
05/05/1987US4662883 Self-sealing valve for fluid fillable device
05/05/1987US4662616 Combined check and exhaust valve for high pressure gas spring
05/05/1987US4662392 Check valve
04/1987
04/30/1987DE3538384A1 Backflow safeguard for fluid lines, especially those carrying liquids
04/28/1987US4660590 Inflation pressure regulator
04/28/1987CA1221002A1 Pressure relief valve and method for modification thereof
04/23/1987WO1987002438A1 Fluid filled device and valve therefor
04/23/1987WO1987002402A1 Backflow preventer apparatus for fluid flow lines
04/23/1987DE3624503A1 Valve for a bicycle tube and a method for its manufacture
04/21/1987US4658852 Backflow preventer apparatus for fluid flow lines
04/21/1987CA1220706A1 Tire valve and low pressure indicator
04/15/1987EP0218409A2 Improvements in and relating to a non-return valve assembly
04/14/1987CA1220403A1 Gas fuse
04/07/1987US4655251 Valve having hard and soft seats
04/07/1987US4655248 Check valve
04/07/1987US4655247 Ball-type check valve assembly
04/02/1987DE3533905A1 Intermediate-flange non-return valve
03/1987
03/31/1987US4654676 Valve element for use in an ink-jet printer head
03/31/1987US4653539 Self-sealing check valve
03/31/1987US4653286 Discharge valve and baffle assembly for a refrigeration system
03/26/1987DE3532933A1 Safety-valve device for a coating system
03/17/1987US4650152 Automatic shut-off valve for welding electrode coolant systems
03/17/1987US4649952 Combined shut off and check valve
03/11/1987CN85106419A Refrigeration system with integral check valve
03/10/1987CA1218914A1 Wall mountable vacuum breaker
03/04/1987EP0212497A1 Anti-stall ball-check valve
03/04/1987EP0211910A1 A controllable air valve for an inflatable body
03/03/1987US4646783 Anti-stall ball-check valve
03/03/1987US4646782 Surge suppressing check valve
02/1987
02/26/1987DE3623837A1 Valve, particularly for a bicycle tube
02/25/1987EP0211301A2 Valve for a bicycle tube and method for its manufacture
02/25/1987EP0210993A1 Valve arrangement for unloading liquid flow at a non-return valve
02/24/1987US4644972 Floating seal valve assembly
02/19/1987DE3528468A1 Non-return valve, in particular a pipe-break valve
02/17/1987US4643719 Manually operable aspirator
02/17/1987US4643222 Check valve
02/17/1987US4643221 Vacuum check valve
02/17/1987US4643139 Reed valves for internal combustion engines
02/10/1987US4642097 Left ventrical vacuum control and pressure relief valve
02/10/1987US4642037 Reed valve for refrigeration compressor
02/04/1987EP0210287A1 Plate valve with concentrically fastened guide arms
02/03/1987US4640293 Spirometer accessory
01/1987
01/27/1987US4638832 Nonreturn piston slide valve
01/27/1987US4638831 Valve arrangement for unloading liquid flow at a non-return valve
01/21/1987CN86201223U Versatile joint for gas-filling
01/20/1987US4637430 Check valve
01/20/1987US4637426 Fill control valve
01/20/1987US4637425 Sewer check valve with cutting seat
01/20/1987CA1216833A1 Valve for fire suppression
01/17/1987CN85101566A Coolant discharge valve assembly in compressor
01/14/1987EP0208412A1 Valve assembly for pipeline
01/10/1987EP0180605A4 Pump valves.
01/06/1987US4634093 Mounting means for valve disc
01/06/1987US4633853 Hot water tank check valve
01/06/1987US4633825 Reed valve assembly
12/1986
12/31/1986CN85105127A Faucet valve with check stop
12/30/1986US4632151 Non-return valves
12/30/1986US4632141 Valve arrangement
12/30/1986US4631923 Solenoid operated check valve
12/30/1986EP0207021A2 A throttle and non-return valve
12/30/1986EP0206949A1 Valve
12/30/1986EP0206002A2 Valve for vehicle tyres and method for its manufacture
12/23/1986US4631376 Molded case circuit breaker with an improved arc gas external venting system
12/23/1986US4630643 Valve, particularly mixing valve
12/23/1986US4630642 Check valve and water injection systems and fuel systems utilizing the same
12/23/1986CA1215606A1 Valve component
12/16/1986US4628996 Full opening check valve
12/16/1986US4628963 Refrigerant compressor discharge valve
12/16/1986US4628959 Vacuum check valve
12/16/1986US4628958 Ring valve
12/16/1986US4628954 Multi-use damper
12/16/1986CA1215286A1 Gas venting valve
12/10/1986EP0204422A1 A uni-directional-flow, fluid valve assembly
12/10/1986EP0204392A1 Valve assembly
12/09/1986US4627464 Unidirectional, fluid control valve
12/03/1986EP0203126A1 Beer and process for its manufacture
12/03/1986EP0203090A1 Diverter.
12/03/1986CN85200495U Ball valve for sprinkler gun
12/02/1986US4625960 Fluid type abductor-adductor exercise device
11/1986
11/25/1986US4624444 Control stop for flushing system
11/25/1986US4624286 Degasifying valve for containers
11/18/1986US4622994 Fluid handling device
11/18/1986US4622993 Well pipe float valve
11/18/1986US4622990 Valve and coupling assemblies
11/18/1986US4622989 Check valve retainer
11/12/1986CA1213919A Inflation needle lubricating plug-insert type valve assembly
10/1986
10/29/1986EP0199538A1 Fluid flow nozzle
10/28/1986US4619287 Valves proper for valve-type fluid-flow controllers
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