Patents
Patents for F04B 7 - Piston machines or pumps characterised by having positively-driven valving (2,226)
03/2008
03/11/2008CA2160826C Miniature pump
03/06/2008WO2008025413A1 Control device for a hydraulic piston machine with a variable volume flow
03/06/2008WO2008025395A1 Control device for a hydraulic piston machine with a variable volume flow
02/2008
02/28/2008WO2001008719A3 Blood treatment system providing pulsatile flow and method of use
02/27/2008CN201027604Y Printing ink pump
02/27/2008CN100371590C A reciprocating liquid pump for delivery of liquid fuel to a domestic burner device
02/21/2008DE10109948B4 Dosierpumpeinrichtung Metering pump
02/20/2008EP1599672B1 Thick material pump
02/14/2008US20080038131 Piston Pump For Thick Materials
02/14/2008US20080035598 Closure Device for a Bottle
01/2008
01/31/2008WO2008012558A2 Hydrostatic regenerative drive system
01/24/2008DE102004009363B4 Kolben-Dickstoffpumpe Piston slurry pump
01/17/2008WO2008007971A1 Pumping machine or compressor and systems using such units
01/16/2008CN101107443A Liquid discharge method and device
01/10/2008WO2008003359A1 Pump element and pump comprising such a pump element
01/10/2008WO2005119058A3 Fluid connection
01/09/2008CN201003470Y Double-purpose vertical pump
01/02/2008EP0977948B1 Dry vacuum pump
01/01/2008US7314238 Fluid connection
12/2007
12/27/2007WO2007147586A1 Two-cylinder slurry pump comprising two distribution tubes
12/19/2007EP1715762B1 Method for preparing a dairy product
12/13/2007WO2007141681A2 A volumetric pump comprising a driving mechanism
12/13/2007CA2653981A1 A volumetric pump comprising a driving mechanism
12/12/2007EP1864092A2 Precision fluid dispensing system
11/2007
11/29/2007US20070274850 Drive Device for a Dual-Cylinder Slurry Pump and Method for Operating Said Pump
11/22/2007WO2007021581A3 Positive displacement pump having piston and/or liner with vapor deposited polymer surface
11/22/2007DE102007016550A1 Hydrostatische Retarderpumpe und hydrostatischer Motor Hydrostatic retarder and hydrostatic motor
11/15/2007WO2007129998A1 Check valve for vibrating piston pump
11/15/2007WO2007056095A9 Crossover switching and pump system
11/08/2007WO2007124873A1 Metering pump
11/01/2007US20070253847 Valve assembly
10/2007
10/31/2007EP1456539B1 Dosing pump
10/31/2007CN101065577A Volumetric pump with reciprocated and rotated piston
10/25/2007WO2007119149A2 Displacement dosing device and corresponding movement apparatus
10/25/2007WO2006096719A3 Precision fluid dispensing system
10/24/2007EP1847710A1 Improved open circuit oleodynamic system to actuate and control a concrete piston pump
10/10/2007EP1843041A1 An improved positive displacement pump, in particular for food products
10/10/2007EP1843039A2 Magnetically driven valveless piston pumps
10/09/2007US7278836 Metering pump
10/04/2007WO2007074363A3 Micropump
10/04/2007WO2007056095A3 Crossover switching and pump system
10/04/2007US20070227508 Method of retarding injection timing of mechanical unit injectors using a modified pump barrel
10/03/2007EP1840373A1 Liquid discharge method and device
10/03/2007CN200954277Y Pressure pump for cardiovascular treating and dilation
09/2007
09/27/2007WO2007109788A2 Fluid propulsion device
09/26/2007EP1836394A2 Active valve and active valving for pump
09/13/2007US20070212241 Vibratory pump with adapter and high pressure mechanism
09/12/2007EP1832745A1 Pump system
09/06/2007DE19846940B4 Pumpenanordnung Pump assembly
09/06/2007DE102005018049B4 Variable Fördermengensteuerung für eine stationär arbeitende Verdrängerpumpe Variable flow control for a stationary working displacement pump
08/2007
08/29/2007EP1826404A2 Nutating pump with reduced pulsations in output flow
08/23/2007US20070196225 Material Feed Container For A Thick-Matter Pump
08/23/2007US20070196224 Reciprocating Slurry Pump With A Continuous Feed Rate
08/23/2007US20070196223 Nutating pump with reduced pulsations in output flow
08/23/2007US20070196219 Device and method for controlling a two cylinder thick matter pump
08/23/2007DE102005058100B3 Reciprocating piston machine as pump or engine for production of energy from wave movements of sea, has cylinder, which has two openings connected with flow guidance channels in cover
08/22/2007CN2936271Y Novel suction pipette
08/22/2007CA2578461A1 Nutating pump with reduced pulsations in output flow
08/21/2007US7258533 Method and apparatus for scavenging energy during pump operation
08/16/2007US20070190220 Method for preparing a dairy product
08/15/2007EP1817499A1 Volumetric pump with reciprocated and rotated piston
08/15/2007CN101018949A Orbiting valve for a reciprocating pump
08/09/2007WO2007088380A1 Operating method for a hydraulic machine
07/2007
07/27/2007CA2534182A1 Pump device for fluid dispenser
07/26/2007DE10061956B4 Ventillose Steuerkolbenpumpe zum Fördern von unterschiedlichen Fluiden Valveless control piston pump for conveying different fluids
07/25/2007EP1809903A1 Membrane pump for conveying liquids
07/24/2007CA2293748C Two-cylinder slurry pump
07/18/2007EP1727981B1 Device and method for controlling a thick matter pump
07/18/2007EP1727979B1 Device and method for controlling a thick matter pump
07/05/2007WO2007074363A2 Micropump
07/05/2007CA2844349A1 Micropump
07/05/2007CA2669637A1 Micropump
07/04/2007EP1803934A1 Micropump
07/04/2007CN1993550A Piston pump with improved efficiency
06/2007
06/21/2007WO2007070036A1 Locking ring in a pump of a beverage system
06/21/2007WO2007070035A1 Adapter plate in a pump of a beverage system
06/20/2007EP1797326A2 Subsea fluid delivery system and method
06/14/2007US20070134114 Modular system for the control of compression systems
05/2007
05/31/2007WO2007060312A1 Positive displacement pumping device comprising a gasket-free dispensing member
05/30/2007EP1789678A1 Orbiting valve for a reciprocating pump
05/24/2007WO2007057650A1 Pressure exchanger
05/24/2007US20070116587 Volume-metering pump device
05/24/2007US20070116586 Pump for brake system
05/18/2007WO2007056095A2 Crossover switching and pump system
05/17/2007US20070110603 High-pressure fuel pump
05/15/2007US7217105 Integrated pump and wash pump
05/09/2007CN1961152A Drive device for a dual-cylinder slurry pump and method for operating said pump
05/03/2007WO2006016919A3 Integrated pump and wash pump
05/03/2007US20070098580 Pump gear
05/02/2007EP1631761B1 Three-way poppet valve for work exchanger
05/01/2007CA2135836C Volumetric pump/valve
04/2007
04/26/2007WO2007045516A1 Piston pump for creamy food products
04/24/2007US7207786 Fuel pump with filter-absent safety valve and universal inlet and outlet
04/18/2007EP1775469A2 A pump
04/18/2007EP1775468A2 A valve assembly
04/18/2007EP1774177A1 Piston pump with improved efficiency
04/11/2007CN1946936A Viscous matter piston pump
04/04/2007CN1942110A Method for producing a dairy product
03/2007
03/29/2007WO2005111425A3 Fixed and variable compressor system capacity control
03/29/2007US20070071596 Liquid drug delivery micropump
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