| Patents for F04B 33 - Pumps specially adapted for elastic fluids actuated by muscle power, e.g. for inflating (2,403) |
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| 11/11/1999 | WO1999057436A1 The structure of the inflator attached on the bicycle |
| 11/10/1999 | CN2348137Y High-pressure inflating and spraying machine |
| 11/10/1999 | CN2348136Y Means for connecting pressure chamber and air-storage chamber of air-storage inflator |
| 11/10/1999 | CN2348135Y Low-pressure pedal inflater |
| 11/10/1999 | CN2348134Y Portable single-tube high-pressure inflater |
| 11/10/1999 | CN2348133Y Dual-purpose inflater |
| 11/03/1999 | CN2346953Y Self-carried inflator for non-motor vehicle |
| 11/02/1999 | US5975861 Pumping assembly for use in ventilated footwear |
| 11/02/1999 | US5975109 Retaining pin pumper devices of the type having a pivotal lever for various valves |
| 10/27/1999 | CN2345728Y Blasting apparatus for furnace and stove |
| 10/27/1999 | CN2345727Y Chongqibao-multipurpose inflator |
| 10/20/1999 | CN2344581Y 打气筒 Inflator |
| 10/20/1999 | CN2344580Y Modified type pump |
| 10/20/1999 | CN2344579Y Hand-held hand-press type high-pressure labour-saving bicycle pump |
| 10/20/1999 | CN1232141A Large inflator |
| 10/13/1999 | CN2343378Y High-pressure air pump |
| 10/13/1999 | CN2343377Y Portable pedal inflator |
| 10/12/1999 | US5964577 Hand air pump with pivotable pressure gauge |
| 10/07/1999 | DE19822727C1 Tire pump for inflating a bicycle tire |
| 10/07/1999 | DE19816686C1 Inflation and repair device for bicycle tires |
| 09/29/1999 | CN2340936Y Bicycle air pump |
| 09/29/1999 | CN2340935Y Invisual air pump for bicycle |
| 09/22/1999 | CN2339781Y Hand-lift type hydraulic booster pump |
| 09/22/1999 | CN2339780Y Lock-type air-inflator |
| 09/22/1999 | CN1229172A Hand vacuum compression dual-purpose pump with pressure measuring and its assembling method and accessories |
| 09/07/1999 | US5947706 Hand operated floor pump with retractable stand |
| 08/25/1999 | CN2334902Y Bicycle attached inflator structure |
| 07/29/1999 | WO1999037130A2 Pump head |
| 07/28/1999 | CN2330808Y Improved inflator with drawn-in fixing and force-application positioning structure |
| 07/28/1999 | CN2330807Y Direction-changeable manual oil pump |
| 07/21/1999 | CN2329788Y Inflating exhausting air pump |
| 07/21/1999 | CN2329787Y Improved inflator |
| 07/21/1999 | CN2329786Y Dual-purpose inflator capable of exhausting |
| 07/21/1999 | CN2329785Y Double-cylinder farm water pump |
| 07/07/1999 | CN2327804Y Air pump |
| 06/30/1999 | CN2326749Y Air-extracting-inflating dual-purpose inflator with gas holder |
| 06/30/1999 | CN2326748Y Potable hand air-extracting-inflating integral pump |
| 06/16/1999 | CN2324315Y 打气筒 Inflator |
| 06/09/1999 | CN2323169Y Hand water pump |
| 06/09/1999 | CN1219227A Activation pin |
| 06/09/1999 | CN1218876A Concealed multifunctional inflator |
| 05/20/1999 | DE19821512A1 Pump for inflating various types of tire |
| 05/20/1999 | DE19812961A1 Pump for bicycle tires |
| 05/12/1999 | CN2318427Y Improved pedal bicycle pump |
| 05/11/1999 | US5902097 For a valve of a bicycle tire |
| 05/06/1999 | WO1999022139A1 Pressure calibration pump apparatus |
| 05/04/1999 | US5898965 Inflation and repair device for bicycle tires |
| 04/29/1999 | WO1999020902A1 Air pump, air chamber device, and wrist watch provided with air chamber device |
| 04/14/1999 | CN2314127Y Portable bicycle air pump |
| 04/07/1999 | EP0906529A1 Activation pin |
| 04/07/1999 | CN2313073Y Inflator having air-extraction function |
| 03/23/1999 | US5885061 Pneumatic pump |
| 03/11/1999 | WO1999011390A1 Compression device |
| 03/03/1999 | CN2309440Y Tyre-inflating gun |
| 02/24/1999 | CN2308725Y Anti-theft inflator |
| 02/24/1999 | CN2308724Y Improved structure of rotary air pump |
| 02/24/1999 | CN2308723Y Hand oil pump |
| 02/23/1999 | US5873705 Tire pump |
| 02/17/1999 | CN2307929Y Hidden bicycle-mounted inflator |
| 02/17/1999 | CN2307928Y Portable inflation pump for vehicle |
| 02/17/1999 | CN2307927Y Air exhausting and inflating device |
| 02/11/1999 | DE19737683C1 Pump for viscous material cartridges |
| 02/10/1999 | CN2307117Y Pedal water pump |
| 02/10/1999 | CN2307116Y Automatic changing fast air-filled or high pressure air filled inflator |
| 02/03/1999 | CN2306329Y Automatic inflator for bicycle and motorcycle |
| 02/03/1999 | CN2306328Y Pedal inflator |
| 02/03/1999 | CN2306327Y Piston leakless hand pump |
| 01/27/1999 | CN2305498Y Detachable hand vacuum pump for household vacuum fresh-keeping |
| 01/27/1999 | CN2305497Y Portable two purpose tube for air pumping and inflation |
| 01/20/1999 | CN2304764Y Portable air pump with reseroir |
| 01/20/1999 | CN2304763Y Moveable rubber ring air pump for aeration and suction |
| 01/20/1999 | CN2304762Y Small size automatic pressure adjusting air pump for bicycle |
| 01/13/1999 | CN1204734A Air pump |
| 01/06/1999 | CN2303094Y Manual air pumping device |
| 01/06/1999 | CN2303093Y Two air intaking and high pressure inflator |
| 01/06/1999 | CN2303092Y Pedal type inflator for motor cycle tyre |
| 01/06/1999 | CN2303091Y Inflator with two air intaking |
| 12/30/1998 | CN2302351Y Air-compressing part for inflator |
| 12/23/1998 | CN2301553Y Pedal air and liquid suction device |
| 12/16/1998 | CN2300739Y High pressure inflating tube |
| 12/03/1998 | DE19721321A1 Bicycle tyre valve connecting pump device |
| 10/27/1998 | US5827941 Flow-controlled calibration syringe |
| 10/27/1998 | US5827052 Air pump |
| 10/21/1998 | CN2295061Y Pedal inflator |
| 10/14/1998 | CN2294342Y Hand pressing type two tube inflating pump |
| 10/14/1998 | CN2294341Y Cycle's frame type inflating pump |
| 10/13/1998 | US5819781 Pumping device with a pivotal lever for various valves |
| 10/08/1998 | DE19802601A1 Head structure of air pump |
| 10/07/1998 | CN2293660Y Bidirectional air intake inflater |
| 09/30/1998 | CN2292914Y Miniature inflator |
| 09/30/1998 | CN2292913Y Hand inflator with pressure accumulating tube |
| 09/23/1998 | CN2292172Y Multi-function inflator |
| 09/16/1998 | CN2291513Y Two-way air intake inflator |
| 09/15/1998 | US5807078 Hand air pumps |
| 09/09/1998 | EP0683863B1 A bicycle pump |
| 09/09/1998 | CN2290708Y Concealed vertical tube bike inflator |
| 08/20/1998 | DE19734806A1 Miniature manual air pump |
| 08/19/1998 | CN2288291Y Miniature high-pressure inflator |
| 08/12/1998 | EP0857873A2 A bicycle pump |
| 08/05/1998 | CN2287212Y Hand rotating air pump |