| Patents for F04B 53 - Component parts, details or accessories not provided for in, or of interest apart from, groups or (19,443) |
|---|
| 12/15/1988 | WO1988009875A1 Travelling barrel downhole pump having a gas release probe |
| 12/14/1988 | EP0294373A1 Well pump |
| 12/13/1988 | US4790726 Air free reciprocatory vacuum pump |
| 12/13/1988 | US4790236 Floating piston coupling for plunger type pumps |
| 12/07/1988 | EP0143794B1 Fuel system bubble dissipation device |
| 12/06/1988 | US4789312 Lubrication pump with improved priming handle assembly |
| 12/06/1988 | US4789307 Floating pump assembly |
| 12/01/1988 | WO1988009277A1 Hydraulic pump with integrated sump and accumulator |
| 11/30/1988 | EP0155315B1 Floating piston coupling for plunger type pumps |
| 11/29/1988 | US4787832 Automatic air vent device for fluid pump of internal combustion engine |
| 11/29/1988 | US4787771 Loaded sucker rod fitting |
| 11/15/1988 | US4784588 Plunger pump |
| 11/09/1988 | EP0290048A2 Proportioning pump for viscous liquids |
| 11/03/1988 | WO1988008489A1 Piston of volume displacement machine |
| 11/02/1988 | EP0288981A2 Plunger pump |
| 11/01/1988 | CA1243899A1 Down hole pump having a gas release valve |
| 10/25/1988 | CA1243546A1 Leakage preventing liquid supply pump |
| 10/18/1988 | US4778350 Hydraulic pump assemblies |
| 10/18/1988 | US4778347 High production pump for viscous materials and method |
| 10/12/1988 | EP0285817A2 Inter-fluid transmitter |
| 10/12/1988 | EP0285685A1 Units with a fluid flowing through them and provided with elements resilient in an axial direction and defining chambers for pressures up to several thousand atmospheres |
| 10/11/1988 | US4776771 Metering pump |
| 10/11/1988 | US4776401 Foot valve for pumping wells |
| 10/11/1988 | US4776260 for providing a reduction in wear on piston and cylinder |
| 10/11/1988 | CA1243051A1 Device for confining a liquid phase between a wall and a rotating part passing through the latter |
| 10/11/1988 | CA1242977A1 Reverse osmosis hand pump |
| 10/11/1988 | CA1242941A1 Machines |
| 10/11/1988 | CA1242929A1 Triple discharge pump |
| 10/06/1988 | WO1988007712A1 Standard gas flow apparatus |
| 10/06/1988 | WO1988007495A1 Hydraulic manually-operated single-piston pump |
| 10/05/1988 | EP0284746A1 Hydraulic pump |
| 10/04/1988 | US4775303 Pump having adjustable packing |
| 10/04/1988 | US4775301 Oscillating electromagnetic pump with one-way diaphragm valves |
| 09/28/1988 | EP0283832A2 Device for taking out and precisely dispensing fluid media |
| 09/27/1988 | US4773833 High pressure homogenizer pump |
| 09/27/1988 | US4773305 Piston pump with rolling membrane |
| 09/20/1988 | US4772184 Piston pump for abrasive conveyances |
| 09/14/1988 | EP0281755A1 Applicator cartridge with a dispensing piston |
| 09/13/1988 | US4770206 Mud pump valve |
| 09/07/1988 | EP0280901A2 Plunger pump |
| 09/06/1988 | US4768933 High pressure reciprocating pump and valve assembly therefor |
| 09/06/1988 | US4768932 Hydraulic paint pump |
| 08/31/1988 | EP0279910A2 Pump with a modular assembly |
| 08/30/1988 | CA1241230A1 Pump |
| 08/23/1988 | EP0185753A4 Packing assembly for use in a plunger bore. |
| 08/11/1988 | WO1988005866A1 High pressure cleaning apparatus with a wobble plate piston pump |
| 08/09/1988 | US4762476 Oil well pump |
| 08/09/1988 | US4762475 Thrust piston pump for the discharge of media |
| 08/09/1988 | US4762474 Pump having reciprocating pipe and slidably supported hollow body |
| 08/09/1988 | US4762051 Single acting pump with double acting drive |
| 08/02/1988 | CA1239831A1 Positive displacement diaphragm pumps employing displacer valves |
| 07/28/1988 | DE3701168A1 Piston machine |
| 07/26/1988 | US4759695 Pumping unit for the filling of container in packaging machines |
| 07/26/1988 | US4759261 Three-way three-position valve for cooling a reversible hydraulic machine |
| 07/19/1988 | US4758135 Pump head |
| 07/19/1988 | US4757751 Ram couling and cylinder end seal assembly for high pressure cylinder |
| 07/12/1988 | US4756674 Reciprocating gas compressor having a split housing and crosshead guide means |
| 07/06/1988 | EP0273692A2 A pump head for a high pressure pump |
| 06/30/1988 | WO1988004731A1 Very high pressure piston pump |
| 06/16/1988 | WO1988004365A1 Well pump |
| 06/16/1988 | DE3641104A1 Lifting pump, especially for pumping petroleum from a deep well |
| 06/14/1988 | CA1237907A1 Rod coupling for oil well sucker rods and the like |
| 06/08/1988 | EP0270130A2 Precision dosing pump for liquids |
| 06/07/1988 | US4749337 Reciprocating bladder pump, and methods of constructing and utilizing same |
| 06/01/1988 | EP0269500A2 Plunger pump of quick pressure-rise type |
| 05/24/1988 | US4746554 Pump liners and a method of cladding the same |
| 05/24/1988 | US4746278 Displacement pump designed for cleaning |
| 05/17/1988 | CA1236757A1 Thin valve plate for a hydraulic unit |
| 05/10/1988 | US4743179 Electromagnetically activated piston pump |
| 05/03/1988 | US4741680 High-pressure plunger pump with coaxial pressure and suction valves |
| 05/03/1988 | US4741679 Oil well pump traveling valve |
| 05/03/1988 | US4741254 Pump plunger |
| 05/03/1988 | CA1235947A1 High pressure pump |
| 04/27/1988 | EP0265270A2 A non throttling discharge pump assembly |
| 04/26/1988 | US4740141 Plunger with composite retention valve |
| 04/26/1988 | US4740101 End fitting and coupling system for sucker rods |
| 04/19/1988 | US4738595 Hydraulic pump with integrated sump and accumulator |
| 04/12/1988 | US4737084 High-pressure plunger pump |
| 04/12/1988 | CA1235026A1 Pump liners and a method of cladding the same |
| 04/07/1988 | WO1988002443A1 Plunger pump |
| 04/07/1988 | DE3633053A1 Unit with a chamber bounded by at least one conical ring |
| 04/05/1988 | US4735129 Single acting mud pump piston |
| 03/29/1988 | US4733873 Mechanical seal |
| 03/23/1988 | EP0260464A1 Dosing pump |
| 03/23/1988 | EP0260463A1 Dosing pump |
| 03/16/1988 | EP0259668A1 Piston pump for a dosed medicament delivery device |
| 03/08/1988 | US4729249 Reciprocating plunger pump having separate and individually removable crosshead cradles |
| 03/02/1988 | EP0257879A1 Lubrication pump |
| 03/01/1988 | CA1233363A1 Single valve diaphragm pump with decreased sensitivity to ambient conditions |
| 02/23/1988 | US4726747 For repeatedly discharging a medium such as pharmaceutical products |
| 02/23/1988 | US4726745 Portable fluid pumping device |
| 02/23/1988 | US4726741 Magnetostrictive pump with hydraulic cylinder |
| 02/16/1988 | US4724746 For an internal combustion engine |
| 02/02/1988 | CA1232168A1 Reciprocating pump piston |
| 01/27/1988 | EP0254450A2 Hydraulic paint pump |
| 01/26/1988 | US4721438 Motor-driven fluid pump |
| 01/26/1988 | CA1231866A1 Sucker rod centralizer |
| 01/20/1988 | EP0253122A2 Pistonpump for cryogenic liquids |
| 01/19/1988 | US4719845 Joint system |
| 01/19/1988 | US4719844 For pumping abrasive material such as mud during a drilling operation |