| Patents for F04F 1 - Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped (1,650) |
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| 10/23/2013 | CN203248414U Groundwater withdrawal device |
| 10/23/2013 | CN101970098B Micropump device |
| 10/18/2013 | DE202013006211U1 Pumpvorrichtung Pumping device |
| 10/16/2013 | CN203239648U Water head difference pressure conversion continuous water lifting device |
| 10/10/2013 | WO2013151089A1 Thermoacoustic pump |
| 10/10/2013 | WO2013149621A1 Stream-driven water pump |
| 10/01/2013 | US8544699 Non-rotating single post ram for inductor pump |
| 09/25/2013 | CN203214458U Air lifter |
| 09/25/2013 | CN103328828A Pressure exchanger and performance adjustment method of pressure exchanger |
| 09/25/2013 | CN103321971A Efficient pneumatic mud pump |
| 09/24/2013 | CA2583379C Pump apparatus |
| 09/18/2013 | CN103314214A Compressor and method for compressing technical gases |
| 09/17/2013 | US8535018 Balancing liquid pumping system |
| 09/12/2013 | US20130233441 Air-activated sequenced valve split foam pump |
| 09/05/2013 | DE102011122695B4 Klarwasser- Druckluftheber für biologische Kläranlagen und Verfahren zu dessen Betrieb Clarified water airlift for biological wastewater treatment and method of operation |
| 09/04/2013 | CN203176011U Pneumatic pump for water circulation of cultivation tank |
| 09/03/2013 | US8524154 System and method for pseudo-continuous measurement of metabolite concentrations in a mammalian body |
| 08/29/2013 | WO2013124258A1 Fluidics module, device and method for pumping a liquid |
| 08/29/2013 | DE102012202775A1 Fluidikmodul, vorrichtung und verfahren zum pumpen einer flüssigkeit Fluidic module, device and method for pumping a liquid |
| 08/28/2013 | CN203161673U Air lifting sludge discharge device |
| 08/22/2013 | US20130213505 Multi-fluid precision calibration pressure source |
| 08/21/2013 | CN203146446U Particular fluid pumping device controlled by single-lever type cylinder and three-way ball valve |
| 08/21/2013 | CN203146445U Pumping equipment for high-viscosity fluid and particle fluid |
| 08/21/2013 | CN203146444U High viscosity fluid pumping equipment controlled by utilizing three-way ball valves |
| 08/21/2013 | CN203146443U High viscosity fluid pumping equipment controlled by utilizing four-way ball valve |
| 08/21/2013 | CN203146442U Particle fluid pumping equipment controlled by utilizing double-rod type air cylinders and three-way ball valve |
| 08/20/2013 | US8511331 Process liquid feed mechanism |
| 08/14/2013 | EP2625431A2 Pumping apparatus and methods |
| 08/14/2013 | CN203130629U Pneumatic lifting pump |
| 08/07/2013 | CN203114755U Oil changing and oil topping-up tool set structure of oil pressure braking |
| 08/01/2013 | WO2013112892A1 Device for improved heat transfer within a compression and/or expansion system |
| 08/01/2013 | WO2013111678A1 Water-sprinkling device |
| 07/24/2013 | CN203081873U High-pressure point-jetting pneumatic dredge pump |
| 07/24/2013 | CN203081872U Shallow water pneumatic dredge pump |
| 07/24/2013 | CN203081871U Pneumatic liquid filling device |
| 07/17/2013 | CN101918120B Device to infuse gas into liquid |
| 07/10/2013 | CN203051251U Utilization device of low-pressure industrial tail gas |
| 07/10/2013 | CN203051250U Water pressing machine |
| 07/09/2013 | CA2702463C Heat driven self-circulating fluid heating and storage tank and system |
| 07/04/2013 | WO2013023972A3 Method and bead tube for treating ground bores |
| 07/03/2013 | CN203035624U Manual oil-well pump |
| 07/03/2013 | CN203030558U Multi-gun automatic energy-storing emergency system |
| 06/27/2013 | WO2013093527A1 Apparatus and method for liquid pumping |
| 06/27/2013 | US20130160688 Gas lift pump apparatus with ultrasonic energy generator and method |
| 06/27/2013 | DE102011122695A1 Clear water-air lifter with backflush function, comprises suction pipe having suction port, siphon tube, a compressed air line connected with compressor, curved drain pipe with water buffer connected to the siphon tube, and a jacket tube |
| 06/25/2013 | CA2700296C Gas lift valve |
| 06/19/2013 | CN103161774A Liquid piston device with isothermy scaling of air achievable and with temperature controlled inside |
| 06/05/2013 | CN103133428A Piston gas exhauster enabling water to rise to head height automatically |
| 05/29/2013 | CN202955047U Air-pressure monitoring energy storage system |
| 05/29/2013 | CN103122877A Pumping device for high viscous fluid and grain fluid |
| 05/28/2013 | CA2678584C Self-powered pump for heated liquid and heat driven liquid close-loop automatic circulating system employing same |
| 05/22/2013 | CN103112927A Transmitting system powered by compressed air and seawater desalination method and system |
| 05/16/2013 | US20130121850 Rotary Energy Recovery Device |
| 05/14/2013 | CA2700661C Gas lift valve |
| 05/08/2013 | EP2588760A1 Shockwave generation device and method of delivering a shockwave |
| 05/08/2013 | CN101469724B Device and method for feeding substances |
| 05/08/2013 | CN101410629B Device, and method for feeding substances |
| 05/07/2013 | US8434509 Tank for containing liquids |
| 05/02/2013 | DE102011052695B4 Verfahren sowie Perlrohr zur Behandlung von Erdbohrungen Procedures and bubbler for the treatment of Erdbohrungen |
| 05/01/2013 | CN103080564A Shockwave generation device and method of delivering a shockwave |
| 04/24/2013 | CN202900803U Device for conveying smashed seriflux of kitchen waste by using compressed air |
| 04/24/2013 | CN103069172A Domestic appliance having a liquid pump |
| 04/17/2013 | EP2580479A1 Domestic appliance having a liquid pump |
| 04/17/2013 | CN202883503U Air pressure water lifting pump and pump set |
| 04/16/2013 | US8419377 Pumping device having a pressure adjustable function |
| 04/16/2013 | US8419376 Pumping device that is operated easily and safely |
| 04/03/2013 | CN103016420A Pressurized water machine system |
| 04/03/2013 | CN103008271A Automatic energy-storage emergency system for multiple guns |
| 03/28/2013 | WO2013040874A1 Liquid flow output method, phase change power device, and constant flow pump |
| 03/27/2013 | CN102996529A Compressed air driven metering device of tail gas purification after-treatment system of internal combustion engine |
| 03/20/2013 | EP2569585A2 Device for compressing and drying gas |
| 03/14/2013 | WO2013033859A1 System for harnessing the energy from flows of abrasive and corrosive liquids without interrupting the flow, formed by pairs of tanks that are filled and emptied in a controlled, alternating manner |
| 03/14/2013 | DE102012003288B3 Flüssigkolbenanordnung mit Plattentauscher für die quasi-isotherme Verdichtung und Entspannung von Gasen Liquid piston assembly with plate heat exchanger for the quasi-isothermal compression and expansion of gases |
| 03/13/2013 | CN102966606A Hydraulic system with compressed air as power |
| 03/06/2013 | EP2564125A1 Fluid heating and storage tank and system |
| 03/06/2013 | EP2564124A1 Heat driven self-circulating fluid heating and storage tank and system |
| 03/06/2013 | CN202768504U Efficient extracting device for liquid |
| 02/28/2013 | DE102009060416B4 Airliftverfahren mit feinperligem Auftriebsstrom Airliftverfahren with feinperligem buoyancy flux |
| 02/19/2013 | US8375976 Method and device for attenuating pressure surges of liquids flowing inside a liquid conduit |
| 02/14/2013 | WO2013021842A1 Gas lift system and gas lift method |
| 02/14/2013 | WO2013021840A1 Gas lift system and gas lift method |
| 02/14/2013 | DE102011052695A1 Verfahren sowie Perlrohr zur Behandlung von Erdbohrungen Procedures and bubbler for the treatment of Erdbohrungen |
| 02/14/2013 | CA2843570A1 Bubble lift system and bubble lift method |
| 02/12/2013 | US8371826 Geyser pump |
| 02/07/2013 | DE112010002571T5 Flüssigkeitsausgabevorrichtung Liquid dispensing device |
| 02/06/2013 | CN102913490A Method for manufacturing tool capable of conveniently draining water |
| 01/30/2013 | CN202707638U 液体输送装置 Liquid delivery means |
| 01/30/2013 | CN102900712A Gas booster pump and emergency air-energy multifunctional water purification system |
| 01/23/2013 | EP2549095A1 Double-circuit power plant |
| 01/23/2013 | CN102893115A Device for compressing and drying gas |
| 01/10/2013 | WO2013003958A1 Jet pump data tool system |
| 01/10/2013 | CA2877194A1 Jet pump data tool system |
| 12/26/2012 | CN202628626U Plugging mudjack pump |
| 12/26/2012 | CN102840183A Hydraulic pressure type air pump |
| 12/19/2012 | CN102829000A Universal energy water pump |
| 12/13/2012 | US20120312381 Fuel Loading of Gaseous Fuel in Liquid Metal Cavitation Reactors |
| 12/06/2012 | US20120308407 Dual injection airlift pump |
| 12/05/2012 | CN202579355U Extracting device for silica gel solution |
| 12/04/2012 | US8322362 Backup pneumatic water pressure device |
| 11/28/2012 | CN202560661U Liquid extraction pipeline, liquid extraction machine and liquid extraction system |