| Patents for F04B 53 - Component parts, details or accessories not provided for in, or of interest apart from, groups or (19,443) |
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| 04/14/2004 | CN1488855A Mud pressure pump and method for manufacturing mud pressure cylinder |
| 04/10/2004 | CA2442812A1 Non-metallic pressure caps and diaphragm pump housings incorporating same |
| 04/08/2004 | WO2004029458A1 Metering pump with gas removal device |
| 04/08/2004 | WO2004029454A1 Metering pump and valve assembly for use in the same |
| 04/08/2004 | WO2004029453A1 Motor/pump unit, particularly for anti-skid vehicle brake systems |
| 04/08/2004 | WO2004029452A1 Piston pump |
| 04/08/2004 | US20040065192 Radial type hydraulic machine |
| 04/08/2004 | DE10244526A1 Ventilanordnung für eine Vakuumpumpe A valve assembly for a vacuum pump |
| 04/07/2004 | EP1404971A2 Double acting simplex plunger pump with bi-directional valves |
| 04/07/2004 | EP1404970A1 Piston pump |
| 04/07/2004 | EP1404432A1 Integrated filter housing |
| 04/07/2004 | EP1286783B1 Bellows pump for delivery of liquids |
| 04/07/2004 | CN2610120Y Rotation concrete pump pipe joint |
| 04/07/2004 | CN2610119Y Piston packing cup of mud pump |
| 04/07/2004 | CN1144949C Mounting mechanism used for control valve in positive displacement compressor |
| 04/06/2004 | US6716002 Micro pump |
| 04/06/2004 | US6715997 Housing for a rotary hydraulic unit with a servo piston |
| 04/06/2004 | US6715649 Bellows pump for delivery of liquids |
| 04/01/2004 | WO2003100303A3 Flow measurement and control system for positive displacement pumps |
| 04/01/2004 | US20040062662 Effervescent gas bleeder apparatus |
| 04/01/2004 | US20040060947 Metering pump and valve assembly for use in the same |
| 04/01/2004 | US20040060290 Hydraulic valve system |
| 04/01/2004 | DE20319933U1 Pump for sludge and gravel has a double piston with floating disc valves to create a water piston effect for improved pumping efficiency |
| 04/01/2004 | DE10244373A1 Kolbenpumpe Piston pump |
| 03/31/2004 | EP1403531A1 Hydraulic pump circuit |
| 03/31/2004 | EP1403518A2 Microfluidic device made at least partially of an elastic material |
| 03/31/2004 | EP1403517A1 Valve arrangement for a vacuum pump |
| 03/31/2004 | EP1402181A1 Device for transporting a free-flowing bulk product to be transported |
| 03/31/2004 | EP1402180A1 Device for conveying free-flowing or bulk materials |
| 03/31/2004 | EP1402179A1 Device for conveying flowable or pourable material |
| 03/31/2004 | CN2608721Y Piston for mud pump |
| 03/25/2004 | WO2004025130A1 Bearing device |
| 03/25/2004 | WO2004025123A1 Pump for a high-pressure cleaning device |
| 03/25/2004 | WO2004025122A1 Fluid-working machine and operating method |
| 03/25/2004 | WO2004025111A1 Unit for pumping fuel from a fuel tank to the internal combustion engine of a motor vehicle |
| 03/25/2004 | US20040057854 Syringe pump |
| 03/25/2004 | US20040057836 Hydraulic pump circuit |
| 03/25/2004 | US20040056228 Valve arrangement for a vacuum pump |
| 03/25/2004 | US20040056050 Pump dispenser having an improved discharge valve |
| 03/25/2004 | DE10326291A1 Check valve for hydraulic pressure pump, has balls disposed between valve body and helical spring, and acts as transmission unit to transmit urging force to valve body based on state of check valve |
| 03/25/2004 | DE10244106A1 Piezoelectrically-actuated micropump dosing or transferring fluids is made of high performance ceramic or chemically-resistant crystal, e.g. sapphire |
| 03/25/2004 | DE10242110A1 Micro-pump for chemical and biochemical analysis has valves arranged in recesses in the base part and formed by a valve seat and a valve body |
| 03/24/2004 | CN1483481A 注射泵 Syringe Pump |
| 03/23/2004 | US6710558 Electronically commutable motor, in particular, for a liquid pump |
| 03/18/2004 | WO2004022975A1 Pump, especially for a fuel injection device for an internal combustion engine |
| 03/18/2004 | WO2004022932A1 Muffler |
| 03/18/2004 | WO2004022141A1 Nasal sprays |
| 03/18/2004 | WO2003081045A8 Valveless micropump |
| 03/18/2004 | US20040052664 High-pressure fuel feed pump |
| 03/18/2004 | US20040052652 Fluid pump and high-pressure fuel feed pump |
| 03/18/2004 | US20040050961 Piston pump for high viscous materials |
| 03/18/2004 | US20040050878 Drywall tool |
| 03/18/2004 | US20040050771 Apparatus and methods for pumping high viscosity fluids |
| 03/18/2004 | US20040050242 Reduced icing valves and gas-driven motor and diaphragm pump incorporating same |
| 03/18/2004 | US20040050073 Process, apparatus, and kit for assembling and disassembling a cryogenic pump |
| 03/18/2004 | DE10333564A1 Oil seal structure for e.g. oil pump, shock absorber of brake actuator in motor vehicles has oil seal chamber that is formed between high and low pressure seals, and which is filled with oil |
| 03/18/2004 | DE10241306A1 Motor and pump unit especially for slip-controlled brake system has base of crank chamber provided with axial bearing element for base of bearing race and protrudes from housing component for drive element in direction of base |
| 03/18/2004 | DE10240831A1 Fuel supply unit for feeding fuel from a tank to a vehicle's internal combustion engine has a casing with inlet/outlet connections and an actuator drive for a pump with intake and pressure sides |
| 03/17/2004 | EP1398518A2 Drive shaft coupling device with oil supply |
| 03/17/2004 | EP1398504A1 Double diaphragm pump |
| 03/17/2004 | CN2606813Y Composite cylinder piston assembly for mud pump |
| 03/17/2004 | CN2606812Y Side oil pump with even pressure anti-sticking cushion |
| 03/17/2004 | CN1483118A Pneumatic motor assembly for a lubricant pump |
| 03/16/2004 | US6705846 Piston pump |
| 03/16/2004 | CA2223838C Volumetric infusion pump |
| 03/11/2004 | US20040047746 High-pressure pump for a fuel system of an internal combusion engine |
| 03/11/2004 | US20040045431 Roller bearing, piston pump and pump unit |
| 03/11/2004 | US20040045429 Pneumatic motor assembly for a lubricant pump |
| 03/11/2004 | DE10239728A1 Pumpe, insbesondere für eine Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine Pump, in particular for a fuel injection device for an internal combustion engine |
| 03/11/2004 | DE10237592A1 Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine Fuel injection device for an internal combustion engine |
| 03/10/2004 | EP1395754A1 Single-step or multi-step piston compressor |
| 03/10/2004 | EP1395753A1 High-pressure pump for a fuel system of an internal combustion engine |
| 03/10/2004 | EP1395750A1 High pressure fuel pump for a fuel system on a direct injection internal combustion engine, fuel system and internal combustion engine |
| 03/10/2004 | EP0932765B1 Piston pump |
| 03/10/2004 | CN1141495C Metal elastic sealing means |
| 03/09/2004 | US6703577 Method of making closed cavity pistons |
| 03/09/2004 | US6702557 Valve assembly prohibiting re-expansion of residual fluid |
| 03/04/2004 | WO2004003504A3 Improved assay systems and components |
| 03/04/2004 | WO2004001228A3 High-pressure small volume pump |
| 03/03/2004 | EP1394452A1 Sealing device |
| 03/03/2004 | EP1392977A1 Micropump |
| 03/03/2004 | CN1479653A Electronic micro-pump |
| 03/02/2004 | US6698399 Radial piston pump for high-pressure fuel supply |
| 02/26/2004 | WO2004016949A1 Check valves for micropumps |
| 02/26/2004 | US20040035396 High pressure fuel pump for a fuel system on a direct injection internal combustion engine, fuel system and internal combustion engine |
| 02/26/2004 | DE10335226A1 Syringe pump has mounting with rib which fits against flange on syringe, mobile catch fitting against other side of flange to hold syringe in position |
| 02/25/2004 | EP1390617A1 Dual port unit pump, injector, and engine efficiency methods |
| 02/25/2004 | EP1390607A1 Central lubricating unit |
| 02/25/2004 | CN2604537Y Piston air ring for small size aerator |
| 02/25/2004 | CN1139740C Lubricant oil pump device |
| 02/25/2004 | CN1139724C Sealed electric compressor |
| 02/24/2004 | US6695594 Vibratory pump improvement |
| 02/24/2004 | US6695590 Lubricant pump having piston with radial through opening |
| 02/24/2004 | US6695176 Pump dispenser having an improved discharge valve |
| 02/19/2004 | US20040033149 Positive-displacement oil pump |
| 02/19/2004 | US20040033146 Micropumps with passive check valves |
| 02/19/2004 | US20040033145 Pump housing mounting flange with tangentially positioned mounting slots |
| 02/19/2004 | US20040033143 Priming pump |
| 02/19/2004 | US20040031529 Pulsation damper |
| 02/19/2004 | DE20315224U1 Motor-Pumpen-Aggregat Motor-pump assembly |