| Patents for F04B 45 - Pumps or pumping installations having flexible working members and specially adapted for elastic fluids (2,191) |
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| 02/27/2002 | CN1338031A Ferroelectric pump |
| 02/21/2002 | WO2002014695A1 Method and system of pulsed or unsteady ejector |
| 02/21/2002 | DE10065977A1 Electromagnetic diaphragm pump for outdoor air blower, has AC power supply with several compression sections operated by AC supplied from AC power supply. |
| 02/20/2002 | CN2477858Y Capsule type inflator |
| 02/14/2002 | US20020018728 Peristaltic compressors suitable for relaxation-free compression of polarized gas |
| 02/13/2002 | EP1179140A1 A combination of a chamber and a piston, a pump, a motor, a shock absorber and a transducer incorporating the combination |
| 02/07/2002 | US20020016560 Body pulsating method and apparatus |
| 01/24/2002 | WO2002006673A1 Body pulsating method and apparatus |
| 01/23/2002 | EP1173677A1 A device comprising a combination of a chamber and a piston |
| 01/17/2002 | WO2001030497A3 The meso sniffer: a device and method for active gas sampling using alternating flow |
| 01/17/2002 | US20020006533 Hydrogen gas generator |
| 01/09/2002 | CN1077655C Diaphragm pump |
| 01/03/2002 | DE10056568C1 Device, for controlling hydraulic membrane compressor, has control valve with throttle, where increasing differential pressure across throttle, causes control valve to open additional opening |
| 12/20/2001 | WO2001097319A1 Electrically activated sheet air mover |
| 12/20/2001 | DE10029116A1 Radially operated pneumatic valve has two half-sections with rotation against each other to set the air flow from a pump ball to a double-action pneumatic cylinder for a stepped movement or blocking action |
| 12/19/2001 | EP1163915A2 Apparatus for expressing milk |
| 12/19/2001 | EP1163446A1 Electrostatically actuated pumping array |
| 12/19/2001 | EP0859912B1 Air driven diaphragm pump |
| 12/13/2001 | WO2001094000A1 Hydrogen gas generator |
| 12/13/2001 | DE10023523C1 Run-up control for membrane and/or piston vacuum pump uses short-term reversal of pump when initial maximum torque in forwards rotation direction is not overcome |
| 12/06/2001 | DE10019725C1 Meßgaspumpe Gas pump |
| 11/29/2001 | DE10025944A1 Ergonomic air pump has a four-link frame containing bellows which are expanded and contracted by the movements of the linkages for easy machine operation with a low noise |
| 11/28/2001 | CN2462106Y Improved device of small air pressure pump |
| 11/27/2001 | US6321561 Electrochemical refrigeration system and method |
| 11/22/2001 | DE10021454A1 Vorrichtung zum Fördern feuchter Gase A device for conveying moist gases |
| 11/08/2001 | WO2001083990A1 Device for delivering moist gases |
| 11/08/2001 | US20010038799 Diaphragm pump and pump for double-breast pumping |
| 11/08/2001 | US20010038798 Portable hand operated fluid pump |
| 11/07/2001 | EP1152149A2 Injector |
| 11/07/2001 | EP1151198A1 Pneumatic component for a control bearing |
| 11/01/2001 | WO2001081763A1 Pump for gases to be measured |
| 11/01/2001 | WO2001081762A1 Measuring gas pump |
| 10/30/2001 | US6308740 Method and system of pulsed or unsteady ejector |
| 10/24/2001 | EP1147312A1 Compression or expansion device |
| 10/10/2001 | EP1141548A1 Peristaltic compressors adapted to non-relaxing compression of polarised gas |
| 10/04/2001 | US20010027087 Electromagnetic blower and two-passage air supply apparatus using the same |
| 10/04/2001 | EP1137884A1 Ferroelectric pump |
| 09/12/2001 | EP1131558A1 Method for conveying damp gases by means of a conveyor device and conveyor device for carrying out said method |
| 09/11/2001 | US6287095 Internal air pump for inflatables |
| 09/05/2001 | CN2446306Y Miniature water/gas dual-purpose pump |
| 08/22/2001 | EP1126164A2 Bellows pump for dispensing different liquids |
| 08/16/2001 | US20010014291 Fluid apparatus such as a pump or an accumulator |
| 07/31/2001 | US6267567 Cooling fan |
| 07/31/2001 | US6266974 Refrigerated beverage mug |
| 07/19/2001 | US20010008608 Electromagnetic oscillating type pump and method for manufacturing the same |
| 07/11/2001 | EP1114933A2 Electromagnetic oscillating type pump and method for manufacturing the same |
| 07/11/2001 | CN1302960A Electro magnetic vibration pump and its manufacturing method |
| 07/10/2001 | US6257847 Diaphragm pump and pump for double-breast pumping |
| 06/20/2001 | CN1067460C Pumping device |
| 06/19/2001 | US6249198 Magnetic actuator |
| 06/19/2001 | US6247472 Method and apparatus for using readily available heat to compress air for supply to a collapsible and portable hyperbaric chamber |
| 06/19/2001 | CA2198311C Compressible tube fluid flow device |
| 06/13/2001 | DE10004520A1 Electromagnetic diaphragm pump for outdoor air blower, has AC power supply with several compression sections operated by AC supplied from AC power supply. |
| 06/07/2001 | WO2001040654A1 Pneumatic component for a control bearing |
| 06/07/2001 | DE19958013A1 Pneumatisches Bauelement für ein Schaltlager Pneumatic device for a switch bearing |
| 05/30/2001 | CN1297365A Ventilation apparatus |
| 05/17/2001 | US20010001278 Vibrating membrane fluid circulator |
| 05/10/2001 | WO2001033078A1 Active electrostatic seal and electrostatic vacuum pump |
| 05/08/2001 | US6227826 Diaphragm activated compression pump |
| 05/03/2001 | WO2001030497A2 The meso sniffer: a device and method for active gas sampling using alternating flow |
| 05/03/2001 | CA2389338A1 The meso sniffer: a device and method for active gas sampling using alternating flow |
| 04/19/2001 | WO2001027475A1 Multi-stage diaphragm-type compressor |
| 04/12/2001 | WO2001025700A1 Electrochemical refrigeration system and method |
| 04/07/2001 | CA2285586A1 Diaphragm activated compression pump |
| 04/04/2001 | EP0778921B1 Pumping device |
| 03/22/2001 | DE19940498A1 Membranpumpe Diaphragm pump |
| 03/14/2001 | CN2423426Y Gas pumping |
| 03/01/2001 | WO2001014744A1 Membrane pump |
| 02/13/2001 | CA2229030C Diaphragm pump and pump mounted in a carrying case useful in breast pumping |
| 02/13/2001 | CA2035539C Vapour transfer pump |
| 02/07/2001 | EP1073493A1 Ventilation apparatus |
| 01/31/2001 | CN1282405A Air pump, air chamber device and wrist watch provided with air chamber device |
| 01/17/2001 | EP1068451A1 Diaphragm pump and pump for double-breast pumping |
| 01/10/2001 | EP1066779A1 Internal air pump for inflatables and method |
| 01/10/2001 | CN1279352A Internal pump for inflating article and method thereof |
| 01/04/2001 | DE19950906A1 Pneumatically operated membrane pump, has one-piece common membrane including pump membrane and sealing element |
| 01/02/2001 | US6168392 Air pump |
| 12/27/2000 | CN2412104Y Multi-chamber permanent-magnet viberation membrane compressor |
| 12/26/2000 | US6164932 Aquarium pump for use both as an air pump and a water pump and aquarium apparatus with a passage aquarium |
| 11/23/2000 | WO2000070227A1 A combination of a chamber and a piston, a pump, a motor, a shock absorber and a transducer incorporating the combination |
| 11/16/2000 | WO1999053984A8 Ventilation apparatus |
| 11/08/2000 | CN1272976A Magnetic actuator |
| 11/02/2000 | WO2000065235A1 A device comprising a combination of a chamber and a piston |
| 10/04/2000 | CN2399525Y Air sac air pump of ozone generator |
| 09/27/2000 | EP1039132A2 Reciprocating foot pump for inflating |
| 09/27/2000 | EP0890016A4 Diaphragm mechanism for an air driven diaphragm pump |
| 09/05/2000 | US6113366 Blow-molded, one piece, two plastic apparatus for pressurizing a vessel |
| 08/31/2000 | DE19904350A1 Membrane or piston pump or combined membrane/piston pump e.g. vacuum pump, has shaft protruding out of pump housing, carrying electric motor rotor |
| 08/23/2000 | EP1030061A1 Air pump, air chamber device, and wrist watch provided with air chamber device |
| 08/10/2000 | WO2000045673A1 Pneumatic system sound attenuator |
| 08/03/2000 | WO2000045053A1 Compression or expansion device |
| 07/19/2000 | EP0861142B1 Pump, pump and holder assembly, personal-care appliance, and method of assembling a pump |
| 07/19/2000 | CN1054672C Air treating device having bellows compressor |
| 07/06/2000 | WO2000039464A1 Peristaltic compressors adapted to non-relaxing compression of polarised gas |
| 07/04/2000 | US6082979 Air pump for vacuum toilet systems |
| 06/28/2000 | EP1013930A1 Small pump device and sphygmomanometer using the pump device |
| 06/22/2000 | WO2000036302A1 Ferroelectric pump |
| 06/22/2000 | CA2354076A1 Ferroelectric pump |
| 06/06/2000 | US6071085 Gas ballast system for a multi-stage positive displacement pump |
| 05/31/2000 | EP1004163A1 Magnetic actuator |