Patents
Patents for F04B 53 - Component parts, details or accessories not provided for in, or of interest apart from, groups or (19,443)
03/1993
03/09/1993US5192198 Diaphragm pump construction
03/04/1993WO1993003865A1 High-pressure cleaning device
03/02/1993US5190527 Intravenous metering device
03/02/1993US5190446 Pump control method and poppet valve therefor
02/1993
02/25/1993DE4127611A1 Suction valve for radial piston pump - uses curved spring extension to limit movement of ball-shaped valve member
02/23/1993US5188519 Saturated fluid pumping apparatus
02/18/1993WO1993003279A1 Quick-change fluid section for piston-type paint pumps
02/09/1993US5184941 Mounting support for motor-pump unit
02/03/1993EP0525314A1 Hydraulic pump
02/02/1993US5183396 Double acting simplex plunger pump
01/1993
01/21/1993WO1993001411A1 Sleeve piston pump
01/20/1993EP0523302A2 Saturated fluid pumping apparatus
01/13/1993EP0522745A1 A ring valve assembly for a reciprocating fluid pump
01/13/1993EP0522116A1 Radial-piston pump.
01/07/1993EP0521054A1 A portable high-pressure cleaner
01/05/1993US5176428 Hydraulic pump
01/05/1993US5176066 Axial piston pump apparatus with an improved drive mechanism
12/1992
12/30/1992EP0520286A2 Radial piston pump
12/29/1992US5174732 Viscous fluid pressure-feed apparatus
12/29/1992US5174192 Piston, method of making the piston and piston and cylinder unit comprising the piston
12/22/1992US5173033 One-way umbrella valve and portable fluid pumping device including same
12/22/1992US5172623 Hydraulic rotary machine with pre-discharge opening for lubrication supply
12/15/1992US5171136 Fluid flow control device
12/15/1992US5171132 Two-valve thin plate micropump
12/10/1992DE4118600A1 Membrane-type metering pump with venting valve - has control system using differential pressure valve,throttle and venting valve
12/01/1992US5167495 Reciprocating hydraulic pump
11/1992
11/25/1992EP0515122A2 Improvements in and relating to coating objects with liquified coatings
11/25/1992CN1066490A High-pressure water pump for pumping water
11/25/1992CN1019225B Pump
11/25/1992CA2065817A1 Apparatus and methods for coating objects with liquified coatings
11/24/1992US5165877 Vacuum pump for use with a poolside skimmer
11/24/1992US5165875 Reciprocating hydraulic pump
11/24/1992US5165867 Fuel pump mounting
11/24/1992US5165577 Disposable plastic liquid pump
11/24/1992US5165449 Discharge valve for a compressor
11/24/1992US5165321 Main bearing device for bent axis type axial piston pump/motor
11/17/1992US5163818 Automatic constant air flow rate pump unit for sampling air
11/17/1992CA1310228C Pump head for a high pressure pump
11/12/1992DE4212931A1 Radial piston pump assembly - has discharge valve element with grooved seat
11/11/1992EP0512688A2 Proportioning pump
11/11/1992EP0512594A1 Suction valve for high pressure slurry pump
11/11/1992EP0512138A1 High pressure water pump for purified water
11/10/1992US5161958 Valve device for automatic circulation in a waste water pump station
11/10/1992CA1309896C Pumping aggregate for feed pumps
10/1992
10/29/1992WO1992018770A2 Plunger pump
10/29/1992WO1992015783A3 High-pressure cleaning device
10/27/1992US5158441 Proportioning pump
10/21/1992EP0509455A1 Flow testing apparatus for injectors
10/21/1992EP0509185A1 Feeding device for reciprocating piston pumps for liquids under saturation conditions
10/20/1992US5157699 Watchdog timer employing plural counters and discriminator for determining normal operating frequency range of input
10/17/1992WO1992018794A1 Pressurised closure
10/17/1992CA2108686A1 Pressurized closure
10/17/1992CA2065975A1 Fluid flow generating apparatus
10/14/1992CN2118831U Inner conductive differencial compressor
10/13/1992US5154589 Metering pump
10/13/1992US5154532 Reciprocating pump coupling
10/11/1992CA2065663A1 Suction valve for high pressure slurry pump
10/06/1992US5152678 Fluid sampling pump
10/06/1992US5152672 Rotary pump with pressure switch
09/1992
09/30/1992CN1064918A Intake and/or outlet valve for proportionating-and spray-pump for delivery liquid, low viscose and pasty material
09/23/1992EP0505352A1 Sealing device for movable parts of high pressure arrangements
09/23/1992EP0504780A1 Piston for a hydrostatic axial and radial pistonmachine and method for constructing such a piston
09/17/1992WO1992015783A2 High-pressure cleaning device
09/17/1992DE4108105A1 Piston for HP cleaning system pump - has sections bridged by flexible, compressible, annular clamps
09/15/1992US5147189 Pressure pump with sealing sleeve between head and chamber
09/15/1992US5147188 Priming piston pump piston check valve
09/15/1992US5147185 Pump apparatus for fluid sampling and collection, and the like
09/08/1992US5145340 Packing for piston and valve machine
09/08/1992US5145338 Low pressure fluid pump
09/08/1992US5144882 Shaft seal system for a piston pump separating impurities
09/03/1992WO1992014929A1 Pump apparatus for fluid sampling and collection, and the like
09/03/1992WO1992014531A1 Distillation
09/02/1992EP0501806A1 Liquefied carbon dioxide pump
09/01/1992US5142875 Cooled pumping system
08/1992
08/27/1992DE4108927C1 Pneumatically driven hydraulic pump with piston pump head - has cylindrical head adaptor for piston guidance in head axial extension, secured by overthrow nut
08/26/1992EP0185753B1 Packing assembly for use in a plunger bore
08/25/1992US5141416 Plunger for a downhole reciprocating oil well pump and the method of manufacture thereof
08/25/1992US5141411 Center-anchored, rod actuated pump
08/20/1992WO1992014056A1 Radial-piston pump
08/19/1992EP0499367A2 Electromagnetic reciprocating pump
08/19/1992EP0499030A1 Oldham compressor
08/18/1992US5139398 Neutralizer valve for a downhole pump
08/13/1992DE4104054A1 HP piston and cylinder aggregate - includes stepped piston seal mounted in cylinder
08/12/1992EP0498009A1 Viscous fluid pressure-feed apparatus
08/07/1992CA2060754A1 Oldham compressor
08/06/1992DE4118652A1 Diaphragm pump unit - has valves which open through movement of valve plate edges
08/05/1992EP0496779A1 Pump apparatus
08/04/1992US5135366 Selective valve to pass fluids
08/04/1992US5134848 Stirling cycle apparatus
07/1992
07/23/1992WO1992012346A1 Pumps
07/23/1992DE4200576A1 High pressure device for fluid flow machines - has piston 'shoe' running within chamber to support high pressure piston and withstand buckling
07/21/1992US5131824 Oldham compressor
07/21/1992US5131820 Low pressure, low head buoyant piston pump for water purification
07/21/1992US5131818 High-pressure water pump having a polyetheretherketone cylinder bushing for pure water
07/21/1992US5131666 Zero clearance anti-extrusion rings for containment of ptfe packing
07/21/1992US5131466 Self actuated intake valve assembly for inlet subsurface reciprocating pumps
07/18/1992CA2059599A1 Light weight piston
07/16/1992DE4100591A1 Return valve for metering pump - has two housing halves with designed location for seal at interface
07/15/1992EP0494236A1 Improved fluid-working machine.
07/14/1992US5129790 Plunger pump