| Patents for F04B 33 - Pumps specially adapted for elastic fluids actuated by muscle power, e.g. for inflating (2,403) |
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| 08/04/1998 | US5788463 Manual vacuum producing system having pressure indicator |
| 07/29/1998 | CN2286803Y Portable high-pressure mini-sized inflator for motoreycle |
| 07/14/1998 | US5779457 Hand pump for pumping air of lower pressure and high pressure |
| 07/08/1998 | CN2285831Y Hand oil pump |
| 07/07/1998 | US5775200 Air pump |
| 06/18/1998 | DE19651160A1 Closable air pump device for bicycle or wheelchair |
| 06/10/1998 | CN2283739Y Inflator mounted on bicycle |
| 06/09/1998 | US5762482 Combined housing and air pump |
| 06/09/1998 | US5762095 Combination pump head |
| 06/03/1998 | EP0845594A2 Air Pump |
| 06/02/1998 | US5759018 Device for creating pressure |
| 05/27/1998 | CN2282608Y Pocket multifunctional pressurizing aerator |
| 05/22/1998 | WO1998021476A1 Coaxial valve-type alternating pump especially for boats such as a rubber dinghy, manually operated or motor-driven |
| 05/22/1998 | CA2271827A1 Coaxial valve-type alternating pump especially for boats such as a rubber dinghy, manually operated or motor-driven |
| 05/20/1998 | CN1182470A Valve connector |
| 05/13/1998 | CN2281425Y Miniature aerator |
| 05/12/1998 | US5749392 Pump connector device |
| 04/22/1998 | CN2279459Y Inflator |
| 04/22/1998 | CN2279458Y Foot multi-purpose air-filling pump |
| 04/08/1998 | CN2278100Y Inflation cylinder with vehicle lock |
| 04/01/1998 | EP0832359A1 Pneumatic pump |
| 03/25/1998 | CN2276997Y 自行车充气筒 Bicycle inflatable tube |
| 03/18/1998 | CN2276569Y Locking-type inflator |
| 03/12/1998 | DE19654253C1 Hand air pump for use different types of valves e.g. used in bicycle tyres |
| 02/10/1998 | US5715554 Bicycle pump and tire repair apparatus |
| 01/28/1998 | CN2273355Y Hidden bicycle pump |
| 01/28/1998 | CN2273354Y Inflating tool for inner tube of tyre of vehicle |
| 01/21/1998 | CN2272951Y 便携式打气筒 Portable pump |
| 01/08/1998 | WO1996010903A3 Valve connector |
| 01/07/1998 | CN2272062Y Indicating pressure inflater |
| 01/07/1998 | CN2272061Y Self-locking connector for inflating tyre |
| 12/31/1997 | CN2271620Y Piston structure of increasing inflator charging effeciency |
| 12/30/1997 | US5702239 Air pump with dual air intakes |
| 12/17/1997 | CN2270824Y Lever type bicycle-mounted inflator |
| 12/10/1997 | CN2270129Y Combined cylinder type efficient inflator |
| 12/03/1997 | CN2269479Y Air storage high pressure single cylinder foot inflator |
| 12/03/1997 | CN2269478Y Inflator on cycle |
| 11/25/1997 | US5690016 Tire pump and tool box combination |
| 11/20/1997 | WO1997043570A1 Activation pin |
| 11/20/1997 | CA2254964A1 Activation pin |
| 11/19/1997 | EP0807036A1 Valve connector |
| 11/19/1997 | CN2268130Y Boosted double-stroke energy-storage type air-inflating device |
| 11/12/1997 | EP0806568A2 Dual drive compressor |
| 11/04/1997 | US5683234 Hand pump apparatus having two pumping strokes and having an attachment member for engaging with different tire valves |
| 10/28/1997 | US5681154 Air pump with dual air intakes |
| 10/22/1997 | CN2265440Y Inflator |
| 10/14/1997 | US5676529 Compact manual air pump having selectable high volume and high pressure modes |
| 10/08/1997 | CN2264260Y Dual-O shape piston dual-chamber booster inflator |
| 10/01/1997 | CN2263719Y Bicycle attached pump |
| 09/24/1997 | CN2263210Y Miniature inflator |
| 09/24/1997 | CN2263209Y Pedal air pump |
| 09/23/1997 | US5669532 Pressure pump for dispensing liquid |
| 09/10/1997 | CN2262112Y Portable pressure storage inflator |
| 09/03/1997 | CN2261518Y Hand driving plunger pump |
| 08/13/1997 | CN2259505Y Full-automatic inflating pump for motorcycle |
| 08/13/1997 | CN2259504Y Height-adjustable double-storing gas barrel type inflator |
| 08/06/1997 | CN2258920Y Inflating device |
| 07/30/1997 | CN2258546Y Portable pedal inflation tube |
| 07/16/1997 | EP0722284B1 Inflatable article, in particular an air mattress, with a part which acts as a pump and a part which is pumped up by the pump |
| 07/08/1997 | US5645100 Hand pump for engaging with different tire valves |
| 07/03/1997 | WO1997023730A1 Manual vacuum producing system having vacuum pressure indicator |
| 06/11/1997 | CN2256042Y Bicycle air pump with bidirectional aeration |
| 06/04/1997 | EP0777049A1 Pump connection device |
| 06/04/1997 | CN2255510Y Inflator |
| 06/04/1997 | CN2255509Y Automatic inflating device for bicycle |
| 06/04/1997 | CN2255508Y High-pressure tyre inflator |
| 06/04/1997 | CN2255507Y Inflator for bicycle |
| 05/28/1997 | CN2254959Y Sleeve type inflator |
| 05/21/1997 | CN2254490Y Moving inflator |
| 05/20/1997 | US5630532 Air pump for generating excess pressure in a fuel tank for liquid fuel in a portable heating device |
| 05/14/1997 | CN2254124Y Portable liquid filler |
| 05/06/1997 | US5626072 Piston assembly for use with a bicycle operated air pump |
| 04/30/1997 | CN2253406Y Hand pump |
| 04/29/1997 | US5624242 Hand air pump for different types of valves |
| 04/16/1997 | CN2252254Y Inflator valve structure |
| 04/09/1997 | CN2251632Y Pen type inflator |
| 04/02/1997 | CN2251053Y 气泵 Air pump |
| 04/02/1997 | CN2251052Y Light inflator |
| 03/26/1997 | CN2250435Y Three sleeve large capacity boosting inflator |
| 03/05/1997 | CN2248784Y Pedal two cylindes type inflator |
| 02/26/1997 | CN2248252Y Double-cylinder pocket high-pressure inflator |
| 02/05/1997 | CN2246685Y Spray barrel device of pressure water-pressuring well |
| 01/22/1997 | CN2245676Y Pedal inflator carried by bicycle and tricycle |
| 01/22/1997 | CN2245675Y High-pressure inflator |
| 01/15/1997 | CN2245131Y Air intake mechanism for inflater |
| 01/08/1997 | CN2244628Y Portable double-cylinder inflating appliance |
| 12/27/1996 | WO1996041955A1 Squeezebulb operated sports ball pump |
| 12/11/1996 | CN2242357Y Portable inflating pump with lock |
| 12/04/1996 | EP0745772A1 Pressure generating device |
| 11/27/1996 | CN2241239Y Bidirectional high-pressure inflator |
| 11/20/1996 | EP0743203A1 Adapter device |
| 11/13/1996 | CN2240059Y Air pump for compression and sorption |
| 11/06/1996 | EP0717695B1 Air-pump insert for the saddle-supporting tube of a two-wheeled vehicle |
| 10/17/1996 | WO1996032336A1 Easily-cleaned reusable lid including an evacuating pump |
| 10/16/1996 | CN2237694Y Inflator type bicycle anti-theft lock |
| 10/09/1996 | CN2237128Y Foot pedal inflator |
| 10/02/1996 | CN1132468A Inflatable article, in particular an air mattress, with a part which acts as a pump and a part which is pumped up by the pump |
| 09/25/1996 | CN2236031Y Mini-inflator |
| 09/18/1996 | CN2235514Y Portable type pedal pump |
| 09/17/1996 | US5556258 Squeezebulb operated sports ball pump |