| Patents for F16K 15 - Check valves (18,131) |
|---|
| 02/02/1994 | CN2154936Y Buffer check valve with double butterfly plate |
| 01/27/1994 | DE4323969A1 Carburettor for gaseous fuel used in small four stroke engines - pref. includes leaf value of polyimide, polyester flexible corrosion resistant metal or stainless steel allows low speed idling and has high efficiency over middle load range |
| 01/26/1994 | CN2154391Y Check valve |
| 01/26/1994 | CN2154390Y Efficient check valve |
| 01/26/1994 | CN2154386Y Valve base for ring-angle close valve check valve |
| 01/19/1994 | CN2153689Y Inflatable tyre gas check |
| 01/19/1994 | CN2153688Y Valve inside for non-motor driven vehicle |
| 01/19/1994 | CN2153687Y Non-return valve |
| 01/19/1994 | CN2153686Y Non-return valve with guided stem |
| 01/19/1994 | CN1080980A An annular valve for a piston compressor |
| 01/18/1994 | US5279330 One-way disc valve |
| 01/13/1994 | DE4220586A1 Non-return valve with stop and housing contg. valve seating - has valve seating consisting of permanent magnet, and stop of ferromagnetic material |
| 01/12/1994 | CN2152955Y Micro-resistant flexible back valve |
| 01/11/1994 | US5277560 Ring valve type air compressor with deformable ring valves |
| 01/11/1994 | US5277556 Valve and micropump incorporating said valve |
| 01/11/1994 | US5277171 Water heater heat trap |
| 01/04/1994 | US5275196 Pressure relief valve for tire rim |
| 12/29/1993 | CN2151335Y Safety valve for tyre overpressure |
| 12/29/1993 | CN2151334Y Check valve with rubber ball |
| 12/29/1993 | CN2151333Y Structure of one way valve for oil jack |
| 12/22/1993 | EP0574419A1 N-shaped backflow preventor |
| 12/22/1993 | CN2150410Y Multifunction energy-saving check valve |
| 12/22/1993 | CN2150409Y Multipurpose check valve |
| 12/22/1993 | CN2150408Y Locked type check valve |
| 12/21/1993 | US5271724 Valve equipped with a position detector and a micropump incorporating said valve |
| 12/21/1993 | US5271432 Adjustable valve and dispenser provided with a valve of this kind |
| 12/15/1993 | EP0573865A1 Check valve |
| 12/15/1993 | CN2149533Y Single way non-return valve |
| 12/15/1993 | CN2149532Y Slow-stop butterfly check valve |
| 12/14/1993 | US5269930 Apparatus and method for supercritical fluid extraction |
| 12/14/1993 | US5269346 Flow control valve |
| 12/09/1993 | WO1993024777A1 Serviceable check valve |
| 12/08/1993 | EP0572748A1 Annular valve for a piston compressor |
| 12/08/1993 | EP0572468A1 Waste valve fittings |
| 12/08/1993 | CN2148869Y Piston type tyre valve |
| 12/07/1993 | US5268103 Apparatus and method for supercritical fluid extraction |
| 12/07/1993 | US5268102 Apparatus and method for supercritical fluid extraction |
| 12/07/1993 | US5267363 Pneumatic support system |
| 12/01/1993 | CN2148234Y Free check valve |
| 12/01/1993 | CN2148233Y Double check valve |
| 12/01/1993 | CN2148230Y Check ball valve |
| 12/01/1993 | CN2147981Y Closed inflating connector |
| 11/24/1993 | CN2147401Y Multi-sealing one-way valve for cutting off |
| 11/24/1993 | CN2147400Y Air check valve |
| 11/24/1993 | CN2147132Y Single-way valve inside |
| 11/17/1993 | CN2146625Y Push-button intake one-way valve |
| 11/17/1993 | CN2146624Y Theft-proof valve inside of tyre |
| 11/16/1993 | US5261466 Process for continuously filling fluid into a plurality of closed bags |
| 11/16/1993 | US5261459 Miniature duckbill valve having a low cracking pressure and high flow rate |
| 11/16/1993 | US5261449 Quick change coupling for tilted disc check valve with top mounted dashpot |
| 11/10/1993 | EP0479941B1 Balanced-torque butterfly valve |
| 11/03/1993 | EP0386191B1 Device for connecting at least two supply pipes with a common drainage pipe |
| 11/03/1993 | CN2145297Y Efficiente one-way valve cabable for arbitrary putting |
| 11/03/1993 | CN1022642C Back-pressure angle-changeable welded check valve |
| 10/27/1993 | EP0566920A1 Security group for a water heater |
| 10/27/1993 | EP0390881B1 Delivery valve |
| 10/27/1993 | CN2144745Y Permanent air valve for tyre of bicycle |
| 10/26/1993 | US5255712 Check valve pull assembly |
| 10/21/1993 | DE4212781A1 Non=return valve for warm water unit - has chamber downstream of valve with venturi tube moderating pressure surge and holding valve open. |
| 10/20/1993 | EP0479940B1 Butterfly valve apparatus and method |
| 10/20/1993 | CN2144068Y Double-closed air valve |
| 10/19/1993 | US5254092 Fluid flow check valve |
| 10/19/1993 | CA1323341C Compressor valve |
| 10/13/1993 | CN2143564Y Valve inside |
| 10/13/1993 | CN1077312A Structure of pneumatic system of breaker |
| 10/12/1993 | US5251664 Quiet check valve for pulsating flow |
| 10/12/1993 | US5251657 Top-entry check valve with cartridge secured by projections |
| 10/06/1993 | CN2143280Y Air valve of wheel |
| 10/05/1993 | US5250195 For computer controlled high pressure treatment of samples before measurement of radioactivity |
| 10/05/1993 | US5249936 Downhold reciprocating pump with automatically trippable travelling valve for prevention of gas lock |
| 10/05/1993 | US5249600 Valve seat for use with pumps for handling abrasive fluids |
| 10/05/1993 | US5249598 Bi-directional vent and overpressure relief valve |
| 10/05/1993 | CA2017371C Flapper check valve |
| 09/29/1993 | EP0561920A1 A solar energy collector. |
| 09/29/1993 | CN2142908Y Inflating valve for tyre of motor vehicle |
| 09/22/1993 | CN2142518Y Shuttle type non-return valve |
| 09/21/1993 | US5246032 Fluid check valve |
| 09/21/1993 | US5245991 Apparatus for supporting deep breathing and check valve for the same |
| 09/16/1993 | WO1993018326A1 Backflow preventor with adjustable outflow direction |
| 09/16/1993 | WO1993018325A1 A mixing valve with a collared ball valve |
| 09/15/1993 | EP0560221A1 Check valve |
| 09/14/1993 | US5244184 Fluid flow control device having an obturating membrane deformable in the direction of fluid flow |
| 09/14/1993 | US5243934 Multiple stage reed valves for use in internal combustion engines |
| 09/14/1993 | CA1322145C Non-return valve for supply cocks |
| 09/09/1993 | DE4207098A1 Valve arrangement for gas or liq. transfer - has valve operation via two permanent magnets, one providing valve closure, with anti-magnetic seat |
| 09/08/1993 | EP0559131A1 Multifunction check valve |
| 09/08/1993 | CN2141858Y Plug-in leakproof type connecting assembly for inflating |
| 09/08/1993 | CN2141857Y Crack-proof valve |
| 09/07/1993 | US5242148 Upper valve part |
| 09/01/1993 | CN1075785A Enclosing sleeve for one-way valve |
| 08/31/1993 | US5240037 Gas line check valve |
| 08/31/1993 | US5240036 Check valve with poppet dashpot/frictional damping mechanism |
| 08/25/1993 | EP0428675B1 A valve unit for a reciprocating compressor for refrigerators and the like |
| 08/25/1993 | CN2141003Y Slow-cuting-off check valve |
| 08/20/1993 | WO1993016742A1 Enclosing sleeve for one-way valve |
| 08/20/1993 | CA2100967A1 Enclosing sleeve for one-way valve |
| 08/18/1993 | EP0479853B1 Butterfly valves with actuators carried on valve plate |
| 08/18/1993 | EP0479828B1 Butterfly valve method and apparatus |
| 08/18/1993 | CN2140458Y Valve inside needing no airtight ring |
| 08/18/1993 | CN2140457Y Check valve having automatic discharge |