| Patents for F04B 3 - Machines or pumps with pistons coacting within one cylinder, e.g. multi-stage (444) |
|---|
| 03/04/2015 | EP2841820A2 Piston assembly |
| 02/17/2015 | US8956128 Spherical expansion compressor adapted to variable working conditions |
| 12/25/2014 | US20140373726 System for supplying a pressurized liquid, method for supplying a pressurized liquid using said system, and machine for preparing beverages that includes said system |
| 12/24/2014 | CN204041367U 一种三级液压泵 A three stage hydraulic pump |
| 10/09/2014 | WO2014165708A2 Hybridized compressor |
| 10/09/2014 | US20140301865 Hybridized compressor |
| 10/09/2014 | US20140298989 Pump Element of a Hydraulic Unit for a Vehicle Brake System |
| 09/23/2014 | US8840377 Fluid compressor and motor vehicle refuelling apparatus |
| 09/16/2014 | US8833102 Turbo compressor and refrigerator |
| 09/02/2014 | CA2569117C Alternative methods to generate high pressure by iteration in a high-pressure multichamber |
| 07/17/2014 | US20140199182 Reciprocating water pump |
| 07/16/2014 | CN203717263U 磁悬浮多极多缸多活塞多功能水液泵 Maglev versatile multi-pole multi-cylinder multi-piston pump water |
| 07/02/2014 | CN203685505U 对置活塞泵 Opposed piston pump |
| 05/13/2014 | US8721299 Piston member, an apparatus comprising the piston member, and methods and use of the piston member and the apparatus |
| 04/29/2014 | US8708666 Multi-stage compressor |
| 04/10/2014 | WO2014054928A1 Cylinder pump for waterproof device |
| 04/02/2014 | EP2712601A1 Fluidic methods and devices |
| 04/02/2014 | EP2712600A2 Methods and devices for fluid driven adult devices |
| 03/26/2014 | CN103670989A Opposed piston pump |
| 02/11/2014 | CA2732482C Fluid compression system |
| 12/19/2013 | WO2013160649A3 Piston assembly |
| 12/04/2013 | EP2669517A2 Piston pump with reversible direction of flow |
| 10/29/2013 | US8568107 Multi-stage compressor |
| 10/10/2013 | WO2013087593A9 Pressure intensifier, method for operating a pressure intensifier, and use of a pressure intensifier |
| 09/11/2013 | CN103291576A Telescopic cylindrical type high-low pressure plunger pump |
| 09/04/2013 | EP2634426A1 Two-stage pump |
| 08/21/2013 | CN103256197A Water lifting device |
| 08/21/2013 | CN103256196A Water intaking device |
| 08/13/2013 | US8506267 Pump assembly |
| 08/01/2013 | US20130192679 Fuel preheating using electric pump |
| 07/24/2013 | EP2617594A1 Digital displacement hydraulic unit |
| 07/18/2013 | DE19743747B4 Kolbenpumpe Piston pump |
| 07/17/2013 | EP2614256A2 High pressure pump including hollow stud |
| 07/16/2013 | US8485793 Chip scale vacuum pump |
| 06/20/2013 | WO2013087593A1 Pressure intensifier, method for operating a pressure intensifier, and use of a pressure intensifier |
| 05/09/2013 | US20130115113 Reciprocating compressor |
| 03/13/2013 | CN202789365U High-precision plunger pump |
| 02/19/2013 | US8376717 Multi-stage compressor |
| 01/23/2013 | CN202690346U Glue coating pump |
| 11/21/2012 | EP2525094A1 Pump for transporting fluid material from material containers |
| 11/21/2012 | CN102792023A Reciprocation pump and dialysis device comprising same |
| 11/14/2012 | CN102782322A Reciprocation pump and dialysis device comprising same |
| 11/13/2012 | US8308439 Method and apparatus for resisting disabling fouling of compressors in multistage compression systems |
| 11/08/2012 | US20120282114 Air pump |
| 10/23/2012 | US8292597 High-speed gear pump |
| 10/17/2012 | EP2510234A2 Continuously conveying infusion pump |
| 10/16/2012 | US8287251 Variable ratio hand pump |
| 10/16/2012 | US8287249 Two-stage membrane pump with economical inlet port design |
| 10/03/2012 | EP2505836A1 Reciprocation pump and dialysis device comprising same |
| 10/03/2012 | EP2505835A1 Reciprocation pump and dialysis device comprising same |
| 09/27/2012 | US20120244018 Pumping devices, systems including multiple pistons and methods for use with medical fluids |
| 08/29/2012 | EP2492507A1 Pumping assembly |
| 08/23/2012 | DE102005060957B4 Hochdruckpumpe mit mehreren Kolben pro Zylinder High-pressure pump with multiple pistons per cylinder |
| 08/14/2012 | US8241011 Fan having two impellers |
| 06/26/2012 | US8206129 Supercharged internal combustion engine including a pressurized fluid outlet |
| 06/06/2012 | EP2461033A1 Multi-stage piston compressor |
| 06/01/2012 | CA2758677A1 Multistage piston compressor |
| 05/23/2012 | CN102472259A 多活塞泵 Multi-piston pump |
| 05/10/2012 | WO2012033982A3 High pressure pump including hollow stud |
| 05/09/2012 | EP2449262A1 Multi-piston pump |
| 05/01/2012 | CA2719635A1 Telescopic piston for pump |
| 04/19/2012 | US20120093663 Apparatus and system to actuate and pump well bore liquids from hydrocarbon wells |
| 04/10/2012 | US8152479 Liquid pressure-feed device |
| 03/15/2012 | WO2012033982A2 High pressure pump including hollow stud |
| 03/15/2012 | DE202011052002U1 Luftkompressor Air compressor |
| 03/14/2012 | CN102374148A Double acting fluid pump |
| 03/08/2012 | US20120057990 System and Method for a Pump With Reduced Form Factor |
| 02/23/2012 | US20120042773 Pump Piston Device |
| 02/08/2012 | CN101517243B 流体静力学的驱动单元 Hydrostatic drive unit |
| 01/19/2012 | US20120011857 High-Flow-Capacity Centrifugal Hydrogen Gas Compression Systems, Methods and Components Therefor |
| 01/05/2012 | US20120000837 Multi-Stage Pump System |
| 01/04/2012 | CN101617182B Economized refrigerant system utilizing expander with intermediate pressure port |
| 01/03/2012 | US8087902 Hydraulic device with a lubricating pump |
| 01/03/2012 | US8087901 Fluid channeling device for back-to-back compressors |
| 12/14/2011 | EP2069640B1 Hydrostatic drive unit |
| 11/17/2011 | DE102008001540B4 Kolbenkompressor Piston Compressor |
| 11/10/2011 | US20110274562 Hose pump |
| 11/03/2011 | DE19546299B4 Doppelkolbenpumpe Double piston pump |
| 09/15/2011 | WO2011069494A3 Continuously conveying infusion pump |
| 09/07/2011 | CN101476552B Multi-cylinder translation compression device |
| 08/09/2011 | US7993110 Steam-generator and gas-compressor systems using water-based evaporation coolants, sealants and lubricants |
| 07/28/2011 | WO2011088585A1 System for pumping corrosive fluid, comprising at least one piston pump and a fluid displacement cylinder |
| 06/16/2011 | WO2011069775A1 Compressor having a pump chamber |
| 06/16/2011 | WO2011069494A2 Continuously conveying infusion pump |
| 06/15/2011 | EP2333336A2 Reciprocating engine for use as a vacuum pump for medicinal purposes |
| 06/15/2011 | EP2333335A1 Portable hydraulic pump group for operating tools |
| 06/15/2011 | CN102094776A Oppositely arranged swing piston type vacuum pump used for automobiles |
| 06/08/2011 | CA2732482A1 Fluid compression system |
| 06/03/2011 | WO2011065334A1 Reciprocation pump and dialysis device comprising same |
| 06/03/2011 | WO2011065333A1 Reciprocation pump and dialysis device comprising same |
| 04/20/2011 | CN101421514B Reciprocating-piston compressor having non-contact gap seal |
| 03/29/2011 | US7914265 Evacuation of a load lock enclosure |
| 02/09/2011 | CN201735473U Spray pump |
| 01/06/2011 | WO2011000602A1 Multi-piston pump |
| 11/16/2010 | US7832992 Air cooled packaged multi-stage centrifugal compressor system |
| 11/10/2010 | CN101094970B Dynamic system for refrigeration equipment |
| 11/09/2010 | US7828530 Electric motor pump for swimming pool maintenance |
| 11/04/2010 | US20100278668 Fluid pump assembly |
| 10/26/2010 | US7819635 Vacuum pump with a continuous ignition source |
| 10/26/2010 | US7819634 Air cooled packaged multi-stage centrifugal compressor method |