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)
12/1998
12/01/1998US5842503 Integrally formed air flow valve
11/1998
11/30/1998CA2238593A1 Inflating valve
11/26/1998WO1998052802A1 Non-return valve and hydraulic anti-slip vehicle braking system with a non-return valve
11/26/1998WO1998052801A1 Hydraulic vehicle braking system with wheel slip control, and a valve for a braking system of this type
11/26/1998DE19721837A1 Hydraulische Fahrzeugbremsanlage mit Radschlupfregelung sowie Ventil für eine solche Bremsanlage Hydraulic vehicle brake system with wheel slip and valve for such a brake system
11/26/1998DE19721774A1 Hydraulische Fahrzeugbremsanlage mit Radschlupfregelung sowie Ventil für eine solche Bremsanlage Hydraulic vehicle brake system with wheel slip and valve for such a brake system
11/25/1998EP0856115A4 Control valve
11/25/1998CN2298389Y Machinery sealing device with anti-block and abrasion resistant
11/25/1998CN2298388Y One-way check valve
11/25/1998CN2298387Y Straight check valve
11/25/1998CN1200164A Variable area compensation valve
11/24/1998US5839887 Internal-combustion engine having a specific-purpose pressure storage tank
11/24/1998US5839755 Method and apparatus for restraining a vehicle occupant
11/24/1998US5839716 Device for transferring liquid under simple or accelerated gravity by means of a valve
11/24/1998US5839472 Valve mechanism of a compressor
11/24/1998US5839468 Pump valve
11/19/1998WO1998051949A1 Downhole hydrocarbon pump
11/19/1998DE19720141A1 Open end spinner
11/18/1998EP0878650A1 Check valve
11/18/1998CN2297610Y Non-return water-sealed valve
11/18/1998CN2297606Y Globe check valve
11/17/1998CA2143114C Fluid flow check valve
11/12/1998DE19734845C1 Rapid-action valve for space vehicle steering circuits
11/11/1998EP0777792A4 Toilet with magnetic check valve
11/11/1998CN2296942Y Needle valve type air valve
11/11/1998CN2296941Y Ultrashort structure type micro-resistance slowly closed check valve
11/10/1998US5833209 Device and method for influencing the periodic stroke movement of the closing element of a valve
11/07/1998CA2231040A1 Inflatable life preserver belt
11/04/1998EP0842361A4 Circulator pump check valve
11/04/1998CN2296435Y Coaxle lift check valve
11/03/1998US5829952 Check valve with a reversible valve ball and seat
11/03/1998US5829560 Valve assembly in a hydraulic control for a ratio controller in a power transmission
10/1998
10/29/1998WO1998048203A1 Container and sealing device for use in the container
10/29/1998DE19716193A1 Single or multi-path valve
10/28/1998CN2295884Y Spherical integrated bidirectional air valve
10/28/1998CN2295883Y Silencing check valve
10/28/1998CN2295882Y High and medium pressure buffered check valve
10/28/1998CN1197181A Radiator valve
10/22/1998DE19716471A1 Back-flow prevention valve
10/21/1998EP0872716A1 Compound water flow meter
10/21/1998CN2295085Y 节流阀 Throttle
10/21/1998CN2295084Y Gas pressure regulator
10/21/1998CN1196776A Scroll compressor
10/21/1998CN1196456A Spool
10/21/1998CA2226136A1 Valve connector
10/15/1998DE19714505A1 Check valve with valve part and control with passage through
10/14/1998EP0776436B1 Method and apparatus for the manufacture of duckbill valves
10/13/1998US5819791 Check valve including means to permit selective back flow
10/13/1998US5819790 Fluid check valve
10/13/1998US5819779 Tire valve cap for measuring air pressure
10/08/1998WO1998044282A1 Tyre and rim assembly valve provided with a pneumatic support membrane
10/08/1998WO1998026203A3 Valve-in-valve body, vent port and method
10/08/1998CA2284897A1 Tyre and rim assembly valve provided with a pneumatic support membrane
10/07/1998EP0868156A1 Voice prosthesis-cartridge assembly
10/07/1998CN2293687Y Non-return valve of exhaust pipe for bathing room
10/06/1998US5816430 Fuel tank vent valve for heaters
10/06/1998US5816313 Pump, and earth-testable spacecraft capillary heat transport loop using augmentation pump and check valves
10/06/1998US5816284 Tire valve extension attachment
09/1998
09/30/1998CN2292953Y Automatic air discharging valve for radiator
09/30/1998CN2292949Y Lift micro-resistance slow-closing vertical check valve
09/30/1998CN2292948Y Check valve
09/24/1998DE19711456A1 Check valve for e.g. hydraulic tensioning unit of automotive drive belt
09/23/1998EP0866252A1 Spool
09/23/1998EP0865764A2 Urinometer having a backflow-proof valve
09/23/1998EP0787285A4 Fluid sampling device
09/23/1998CN2292198Y 弹性膜型止回阀 Elastic membrane valve
09/23/1998CN2292197Y 止回阀 Check
09/22/1998US5810041 Pressure regulator
09/17/1998WO1998040629A1 Vacuum pumping apparatus
09/16/1998EP0660733B1 Fluid flow check valve
09/16/1998CN1193380A Control valve
09/15/1998CA2082953C N-shaped backflow preventor
09/11/1998WO1998039589A1 Valve apparatus and method
09/09/1998EP0863344A2 Probe and valve system
09/09/1998EP0863343A2 Non-retrun valve
09/09/1998EP0862707A1 Valve for an inflatable article
09/08/1998US5803121 Of an automotive vehicle
09/08/1998US5803112 For installation in a fluid conduit
09/08/1998US5803108 Tool and method for inserting a filter element into the valve stem of a wheel assembly
09/08/1998US5803074 Valve for resuscitator apparatus
09/03/1998WO1998037748A2 No-return valve for piping
09/02/1998CN2289922Y Non-return and stop two-use valve
09/02/1998CN2289921Y Low frection-resistance slowly stop shock ball check valve
09/01/1998US5799689 Tubular refrigerant check valve with idented outer housing portion
08/1998
08/26/1998CN2289103Y Plunger type check valve
08/26/1998CN1191286A High-level automatic water make-up check valve
08/25/1998US5797426 Check valve and trap assembly
08/20/1998WO1998036338A1 An apparatus for varying the flow area of a conduit
08/20/1998WO1998036245A1 An apparatus for indicating the flow rate of a fluid through a conduit
08/19/1998CN2288321Y Hydraulic reversing valve having valve port with self-sealer
08/18/1998US5794661 Tank isolation valve
08/18/1998US5794657 Safety check valve for fuel delivery system
08/18/1998US5794656 Ball check valve with offset open ball movement
08/18/1998US5794655 For controlling fluid flow
08/18/1998US5794408 Inerting process for packaging covers and devices for carrying out said process
08/12/1998EP0639099B1 Apparatus and method for supercritical fluid extraction
08/12/1998EP0639098B1 Apparatus for supercritical fluid extraction
08/11/1998US5791374 Check valve for the pre-combustion chamber of an internal combustion engine
08/11/1998US5791372 Relief valve
08/11/1998US5791317 Flow valve
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