| Patents for F04B 53 - Component parts, details or accessories not provided for in, or of interest apart from, groups or (19,443) |
|---|
| 11/09/1993 | US5259738 Fluid-working machine |
| 11/09/1993 | US5259737 Silicon semiconductor sandwiched between glass layers; medical equipment |
| 11/04/1993 | DE4213841A1 Shut=off valve with anti-corrosive inner plastics lining - has structured surface over inside wall of valve to ensure secure hold of lining. |
| 10/28/1993 | DE4213798A1 Radial piston fuel pump for combustion engine - uses valve plate contained entirely within recess in cylinder head |
| 10/28/1993 | DE4213781A1 Radial piston fuel pump for combustion engine - uses channel from suction valve intake having two distinct profiles |
| 10/26/1993 | US5255828 Liquid developer supply system with pump for discharging fixed amounts of liquid developer |
| 10/20/1993 | EP0566067A2 Bearing unit and electric pump using the same |
| 10/19/1993 | US5253987 Fluid end for high-pressure fluid pumps |
| 10/19/1993 | US5253981 Multichannel pump apparatus with microflow rate capability |
| 10/14/1993 | WO1993020351A1 Fluid controlling microdevice and method of manufacturing the same |
| 10/13/1993 | EP0564996A1 Hydraulic unit in a piston or plunger pump |
| 10/07/1993 | DE4211551A1 Adjustable pump with cartridge type valves - has pressure limiting valve and pressure switching valve incorporated as single unit |
| 10/07/1993 | DE4209461A1 Axial piston swash plate pump for use as high pressure cleaner - has series of second bores arranged in parallel with each piston bore |
| 10/05/1993 | US5249600 Valve seat for use with pumps for handling abrasive fluids |
| 09/22/1993 | EP0561726A1 Pump to apply a product under pressure and installation of such a pump |
| 09/21/1993 | US5246355 Well service pumping assembly |
| 09/16/1993 | WO1993018321A1 Oil well plunger |
| 09/16/1993 | WO1993018306A2 Hydraulic oil well pump drive system |
| 09/16/1993 | WO1993018305A1 A pump, control valve and diaphragm |
| 09/16/1993 | WO1993018303A1 Wet electric motor driven pump |
| 09/15/1993 | EP0560233A2 Metal-ceramic compound component |
| 09/07/1993 | US5242403 Pumping device for the metered feed of liquids |
| 09/02/1993 | WO1993016829A1 Pump apparatus for pumping melt metal |
| 09/01/1993 | EP0558389A1 Hydraulic piston pump with inlet valves |
| 09/01/1993 | EP0558110A1 Fuel pump mounting |
| 08/29/1993 | CA2090715A1 Improved suction valve piston hydraulic pumps |
| 08/26/1993 | DE4205154A1 Pump head for hot gas etc. pump - has covered chambers, contg. e.g. screw connections for pipes extending from heating jacket |
| 08/26/1993 | DE4205122A1 Plunger or piston pump with inner annular gap - has membrane assembly of two stacked roll membranes, which can be pushed into each other |
| 08/25/1993 | EP0557037A2 Method for producing inner stators for electromagnetic pumps |
| 08/24/1993 | US5238019 Hold-down assemblage for a gas compressor valve assembly |
| 08/19/1993 | WO1992006298A3 High pressure pump seal |
| 08/19/1993 | DE4203384A1 Two=part piston esp. for IC engine - has elastically deformable piston ring between piston base and skirt |
| 08/17/1993 | US5236008 Sealing ring carrier and valve support |
| 08/12/1993 | DE4203619A1 Combined axial piston pump and electric motor unit - incorporates noise curbing elements between flanges of pump support block attached to motor |
| 08/12/1993 | DE4203534A1 Bellows pump for metering small amounts of fluid - uses self closing valves made of rubber or rubber containing ferromagnetic particles |
| 08/03/1993 | US5232273 Brake system pump with a damper chamber with leaf spring and cup closure |
| 07/29/1993 | DE4201825A1 Valve for vehicle antilock braking circuit - has throttle in front of inlet and uses slider subject to pump pressure |
| 07/28/1993 | EP0464165B1 Ultrahigh pressure plunger pump |
| 07/27/1993 | US5230615 Fuel injection pump having oil temporarily-storing groove |
| 07/27/1993 | US5230363 Suction valve for high pressure slurry pump |
| 07/27/1993 | US5230128 Apparatus for replacing discharge valves in air compressors |
| 07/22/1993 | DE4207428C1 Pump piston with cylindrical metal and ceramic parts - is mfd. by soldering,using intermediate layer left protruding beyond ceramic part |
| 07/21/1993 | EP0551590A1 High-pressure plunger pump, working preferably at pressures above 2000 bars |
| 07/20/1993 | US5228842 Quick-change fluid section for piston-type paint pumps |
| 07/20/1993 | US5228468 Valve and valve seat for flat valve and method of making same |
| 07/13/1993 | US5226799 Ultrahigh pressure poppet valve with low wear |
| 07/13/1993 | US5226311 Fluid flow generating apparatus |
| 07/06/1993 | US5224843 Two valve micropump with improved outlet |
| 07/06/1993 | US5224841 Pneumatic bellows pump with supported bellows tube |
| 07/01/1993 | DE4142032A1 Radial piston pump for use on vehicles - has pressure responsive check valve in each fluid outlet chamber |
| 06/30/1993 | EP0549086A1 Diaphragm-type vacuum pump |
| 06/29/1993 | US5222878 Electromagnetic reciprocating pump |
| 06/24/1993 | DE4141825A1 Hand-operated pump for bottle or container - has membrane in place of piston and cylinder to prevent escape of vapours |
| 06/22/1993 | US5220962 Pump apparatus for pumping well fluids from a wellbore having low formation pressure |
| 06/17/1993 | DE4140961A1 Electrohydraulic unit for electro fuel pump for motor vehicle - has hydraulic line and current lead connected to one head coupled to connector to make hydraulic and electric connection |
| 06/15/1993 | US5220225 Integrated electric motor driven inline hydraulic apparatus |
| 06/15/1993 | US5218763 Method for manufacturing a swaged piston assembly for an automotive air conditioning compressor |
| 06/10/1993 | WO1993011376A1 Shift gear with a positive-displacement pump |
| 06/10/1993 | WO1993011361A1 Pump |
| 06/08/1993 | US5216943 Piston for hydrostatic axial and radial piston machines and method for the manufacture thereof |
| 06/03/1993 | DE4139611A1 Getriebe mit einer verdraengerpumpe Transmission with a positive displacement pump |
| 06/01/1993 | US5215443 High pressure liquid pump |
| 05/27/1993 | WO1993010353A1 Piston machine for use as a compressor or motor |
| 05/25/1993 | US5213586 Vent check valve |
| 05/25/1993 | US5213487 Ring valve type air compressor with deformable ring valves |
| 05/25/1993 | US5213484 Diaphragm pump unit |
| 05/25/1993 | US5213482 Hydraulic radial-type piston pump |
| 05/25/1993 | US5213025 Conical rod piston |
| 05/18/1993 | US5211611 Planocentric drive mechanism |
| 05/18/1993 | CA1317814C Plunger pump |
| 05/13/1993 | WO1993009348A1 Blood pump actuator |
| 05/13/1993 | DE4237851A1 Radial piston pump with actuating eccentric |
| 05/11/1993 | US5209495 Reciprocating rod pump seal assembly |
| 05/04/1993 | US5207567 Pump with integral sump |
| 04/29/1993 | DE4200495A1 Piston rod assembly with tumbler discs - has hollow lightweight piston with conical tip attached to camshaft ring |
| 04/27/1993 | US5205441 Suction and/or discharge valve for a metering and spray pump for dispensing liquid, low-viscosity and pasty substances |
| 04/20/1993 | US5203251 Motor with spring elements formed on valve assembly |
| 04/15/1993 | DE4133391A1 Seat valve for slip-controlled brake - has valve closure of wrought aluminium alloy, which is closed by valve closing force |
| 04/14/1993 | EP0536267A1 Adjustable rotor for a radial piston fluid machine |
| 04/13/1993 | US5201643 Compression machine |
| 04/13/1993 | US5201639 In-line hand pump device |
| 04/13/1993 | US5201261 Piston coupling mechanism for a swash plate compressor |
| 04/08/1993 | DE4132930A1 Variable output compact hydraulic pump for brake circuit - has array of spring mounted pistons with non-return valves and operated by solenoids in programmed pattern |
| 04/07/1993 | CN1070719A Hermetic motor compressor |
| 04/06/1993 | US5199860 Hydraulic reciprocating piston pump for brake installations of motor vehicles with an abs system |
| 04/01/1993 | WO1993006368A1 Double acting simplex plunger pump |
| 04/01/1993 | WO1992018770A3 Plunger pump |
| 03/31/1993 | EP0534771A1 Fuel injection pump |
| 03/31/1993 | EP0534067A2 Hydrostatic machine with drainage for leaking oil |
| 03/25/1993 | DE4143343A1 Microminiaturised electrostatic membrane pump - has fluid filled space adjacent pump membrane subjected to electrostatic field |
| 03/25/1993 | DE4131033A1 Radial piston pump driven by eccentric - uses ball in cage to control valve closure time and reduce noise |
| 03/25/1993 | DE4131032A1 Radial piston pump driven by eccentric - uses valve with interchangeable ball to vary delivery flow |
| 03/23/1993 | US5195878 Air-operated high-temperature corrosive liquid pump |
| 03/23/1993 | US5195876 Plunger pump |
| 03/23/1993 | US5195231 Method for producing inner stators for electromagnetic pumps |
| 03/18/1993 | WO1993005295A1 Micro-miniaturised, electrostatically driven diaphragm micropump |
| 03/18/1993 | DE4135655A1 Mikrominiaturisierte, elektrostatisch betriebene membranpumpe Microminiaturized electrostatically driven diaphragm pump |
| 03/18/1993 | DE4129892A1 Guiding seal to move piston in cylinder - has PTFE seals of longer axial length, located in cylinder wall or outer surface of piston |
| 03/16/1993 | US5193991 Liquefied carbon dioxide pump |
| 03/16/1993 | US5193577 Sludge pump valve |