Patents
Patents for F04B 53 - Component parts, details or accessories not provided for in, or of interest apart from, groups or (19,443)
01/1988
01/13/1988EP0252296A2 Piston pump for delivering cryogenic liquid
01/12/1988US4718831 Apparatus for cooling a pressure medium
01/07/1988EP0251948A2 Piston pump with a rolling diaphragm
01/05/1988US4717317 Reciprocating pump
01/05/1988US4716924 Valve assembly for reciprocating plunger pump
12/1987
12/29/1987US4715795 Metering pump
12/29/1987US4715794 Bottom-hole pump fluid flow controller
12/29/1987US4715313 Pump liners and a method of cladding the same
12/16/1987EP0249153A2 Pump unit
12/16/1987EP0248847A1 Well pump
12/16/1987CN87103613A Hermetically sealed rotary compressor
12/15/1987US4712981 Pressure-operated valving for oil and gas well swabs
12/15/1987CA1230263A1 Travelling valve assembly for a fluid pump
12/09/1987EP0248110A2 Valveless positive displacement metering pump
12/02/1987EP0247255A1 Pump liners and a method of cladding the same
12/01/1987US4710109 Diaphragm pumps with improved structural cooling and maintenance
11/1987
11/26/1987DE3617592A1 Guide for pump rods
11/26/1987DE3616968A1 Nutating-piston compressor
11/24/1987US4708597 Plunger with simple retention valve
11/19/1987EP0245386A1 Vibratory pump.
11/19/1987DE3715408A1 Vorrichtung zum auffangen einer fluessigkeit Device for a field fluessigkeit
11/10/1987US4705458 Fluid operated pump
11/03/1987CA1228879A1 Packing arrangement
10/1987
10/29/1987DE3712412A1 Device for improving the adhesion of the non-return valves constructed as plug-in cartridges in the housing of a radial piston pump
10/21/1987EP0242281A1 Multipiston pump provided with blade valves
10/13/1987US4699574 Low head, high volume pump apparatus and method
10/13/1987US4699572 Reciprocatory piston and cylinder machine
10/08/1987DE3610884A1 Valve diaphragm
10/08/1987DE3610882A1 Piston pump
09/1987
09/23/1987EP0238380A1 Pumping of high viscosity materials
09/22/1987US4694976 Discharge apparatus for flowable media
09/22/1987CA1227084A1 Pump with ring retained floating wrist pins and connecting rods
09/17/1987DE3619821A1 Dosage piston pump with restoring spring for pumping liquid media
09/17/1987DE3608702A1 Pumping device for delivering liquids
09/16/1987EP0237112A1 Valve arrangement for use in a displacement pump
09/10/1987DE3607497A1 Piston machine
09/08/1987US4691735 Plunger valve apparatus for oil well pump
09/08/1987US4691620 Self-flushing fluid seal assembly
09/02/1987EP0139709B1 Double acting reciprocating piston pump
09/02/1987EP0138927B1 Piston pump for liquid media contaminated by solid materials
09/01/1987US4690160 Hydraulically operated high-pressure piston pump
08/1987
08/25/1987US4688999 Well pump
08/18/1987CA1225543A1 Oral hygiene appliances
08/11/1987US4685517 For use in the pump barrel of a downhole pump
08/04/1987US4684334 Inlet valve assembly for paint sprayer
08/04/1987US4683810 Two-stage composite piston
07/1987
07/22/1987EP0229304A1 Pumping unit for the filling of containers in packaging machines
07/21/1987US4681516 Leakage preventing liquid supply pump
07/15/1987EP0228628A2 Precision dosing pump for liquids, especially for use in HPLC technology
07/14/1987US4679994 Piston vacuum pump
07/09/1987DE3600343A1 Fine-dosing pump for liquids, in particular for use in HPLC technology
07/09/1987DE3600342A1 Fine-dosing pump for liquids, in particular for use in HPLC technology
07/09/1987DE3600341A1 Fine-dosing pump for liquids, in particular for use in HPLC technology
07/02/1987DE3545130A1 Arrangement suitable even for pumps and motors with very high pressures or with a non-lubricating fluid
06/1987
06/30/1987US4676724 Mud pump
06/30/1987US4676265 Vacuum pump drain device
06/24/1987EP0226432A2 Removal of dissolved gases in liquid separation systems
06/23/1987US4674959 Pressure-operated valve, particularly for a downhole pump
06/23/1987US4674659 Universal sequential dispensing pump system
06/18/1987WO1987003649A1 Well pump
06/16/1987US4673338 Travelling barrel down hole pump having a gas relief probe
06/16/1987EP0225797A2 A joint system
06/09/1987US4671746 Base component for a fluid transfer device and method of making the component
06/09/1987US4671743 Piston pump
06/04/1987WO1987003342A1 Vibratory pump
06/04/1987WO1987003233A1 Method of making pump rods
06/02/1987US4669368 For use in a pump
05/1987
05/27/1987EP0223288A1 Arrangement comprising a hydrodynamically journalled reciprocable and rotatable piston
05/27/1987DE3541708A1 Piston pump without inlet and outlet valves
05/19/1987CA1221875A1 Piston with simple retention valve
05/19/1987CA1221874A1 Piston with composite retention valve
05/12/1987US4664606 Reciprocating pump for fluids, specifically such contaminated by solids
05/12/1987US4664391 Apparatus for retaining a liquid phase, between a wall and a rotary member passing therethrough
05/12/1987US4664145 Device for delivering a pressurized medium to a rotatable part
05/05/1987US4662831 Apparatus for fracturing earth formations while pumping formation fluids
04/1987
04/28/1987US4661049 Metering pump
04/22/1987EP0218664A1 High pressure sealing device between two elements in relative motion.
04/15/1987EP0217796A1 A pump
04/09/1987WO1987002100A1 Displacement pump
04/08/1987EP0216956A2 Units with a fluid flowing through them and with elements resilient in an axial direction and defining chambers for pressures up to several thousand atmospheres
03/1987
03/31/1987US4653953 Sucker rod construction
03/26/1987DE3532728A1 Piston pump for delivering fluids
03/26/1987DE3532580A1 Pump
03/24/1987CA1219494A1 Piston pump
03/10/1987US4648809 Device for conveyance of a pressure medium, especially oil
03/05/1987DE3529978A1 Diaphragm pump
02/1987
02/25/1987EP0211790A1 Displacement pump for deep wells
02/25/1987EP0211734A1 Dosing pump
02/19/1987DE3529332A1 Piston pump without inlet and outlet valves
02/17/1987US4643723 Device for administering a liquid in a number of doses
02/12/1987WO1987000890A1 Downhall mechanism for positive displacement pump for deep drilling
02/04/1987EP0210315A2 Diaphragm pump, particularly with three working chambers
02/03/1987CA1217400A1 Fuel system bubble dissipation device
01/1987
01/20/1987US4637459 Anti rotational device for down hole hydraulic pumping unit
01/20/1987US4637295 Pump seal with curved backup plate
01/13/1987US4636150 Low power electromagnetic pump
01/10/1987EP0180605A4 Pump valves.
01/06/1987US4634353 Valve head for high-pressure pumps
12/1986
12/30/1986US4632647 Side entry down hole pump for oil wells
12/30/1986EP0205569A1 Mud pump.