Matches 1 - 21 out of 21


Match Document Document Title
US20080050254 Dual action air pump  
A dual action air pump has a body and a piston assembly. The body has an air chamber, an air channel and an elongated hole, which are defined longitudinally in the body parallel to each other. The...
US20130195702 DOUBLE-ACTION SUCKER-ROD WELL PUMP  
A pump includes a two-stepped cylinder with cavities and a lower intake valve, and is connected to a tubing-string via a sub, which includes an upper intake valve and discharge valve. A hollow...
US20150139839 PORTABLE, REFRIGERANT RECOVERY UNIT  
A portable, refrigerant recovery unit for transferring refrigerant from a refrigeration system to a storage tank. The recovery unit includes two, opposed piston heads rigidly attached to...
US20080124229 Radial Swivel Motor and Process for Manufacturing Same  
To improve the surface finish of the inner circumferential surfaces of the stator and to reduce the manufacturing effort, it is proposed that the stator with a stator housing 1 and with the stator...
US20140199182 RECIPROCATING WATER PUMP  
A reciprocating jetting water pump primarily for use on a vacuum truck is disclosed. The jetting water pump includes a pair of reciprocating pistons that are each movable within an outer cylinder...
US20100139660 Pump and exhalation valve control for respirator apparatus  
Double acting respirator pump apparatus including a pump member reciprocable with respect to two pump chambers to deliver air to a patient via a respirator exhalation system, which also...
US20080080994 Fluid End Reinforced with a Composite Material  
A fluid end for a reciprocating pump is provided that includes a base material less subject to abrasion, corrosion, erosion and/or wet fatigue than conventional fluid end materials such as carbon...
US20140056744 VALVE AND DIAPHRAGM FOR A PUMP  
A diaphragm pump (10) having a pump body (11) providing opposing pump chambers (12, 13). Mounted in the body is a piston assembly (14) having pistons (15) joined by a piston rod (16). Each piston...
US20090097999 Suction structure in double-headed piston type compressor  
A suction structure is provided for allowing refrigerant into first and second compression chambers from a suction pressure region through first and second rotary valves and first and second...
US20070258831 SINGLE STAGE TO TWO STAGE COMPRESSOR  
A compressor includes a cylinder having major and minor compression chambers. The major compression chamber includes an ambient intake and an outlet which can be directed either to the intake of...
US20090269227 PISTON PUMP WITH AT LEAST ONE STEPPED PISTON ELEMENT  
A piston pump with at least one driven stepped piston element disposed longitudinally movably in a housing is disclosed. The piston element and housing define a plurality of pressure chambers...
US20140301875 METERING PUMP  
The invention relates to a metering pump for a metering device for metered dispensing of a liquid, which can be connected to a storage container, comprising a cylindrical pump body and an...
US20080112827 Compressor for liquid or gaseous fluids  
A compressor to compress liquid or gaseous fluids comprising a cylinder with a plunger provided therein. In a first embodiment, on both sides of said plunger, respective fluid suction and...
US20080310969 DUAL CHAMBER MIXING PUMP  
A dual chamber mixing pump design is disclosed which allows two different sources of fluid to be combined into one mixed product fluid. The pump is divided into two chambers, the proximal chamber...
US20110058959 MUD PUMP CYLINDER ASSEMBLY AND LINER SYSTEM  
A fluid section for a reciprocating pump comprises a cylinder assembly including a housing having a central axis, a first end, a second end opposite the first end, and a throughbore extending...
US20140377110 DEVICES AND METHODS FOR ACTUATING VALVES  
Apparatuses and methods overcoming the technical challenges in actuating valves of reciprocating compressors used in oil and gas industry are provided. A valve assembly includes an actuator, a...
US20050152798 Piston compressor  
A piston compressor contains at least one cylinder (2), inside of which a reciprocating piston (4) forms two working chambers (10, 12) disposed on opposing sides of the piston, which each have at...
US20130280102 FLUID PUMPS, METHODS OF MANUFACTURING FLUID PUMPS, AND METHODS OF PUMPING FLUID  
A fluid pump includes a pump body enclosing a first cavity and a second cavity, a first flexible member disposed within the first cavity, a second flexible member disposed within the second...
US20110020155 ULTRA HIGH PRESSURE PUMP WITH AN ALTERNATING ROTATION TO LINEAR DISPLACEMENT MECHANISM  
A high pressure pump including a linear actuator comprising a servo motor adapted to axially rotate a hollow rotor shaft in alternating directions, the servo motor having a stator positioned...
US20150345447 Plug-In Pump  
A plug-in pump includes a cylinder and a pump housing, wherein the cylinder has a cavity in which a movable piston is accommodated, wherein a first end of the piston delimits a pump chamber, and a...
US20110293455 BALL VALVE DEVICE AND METHOD FOR FORMING A BALL RETAINER IN A CHECK VALVE  
The ball valve device comprises a tubular body in metal material, having a cylindrical wall conformed with spherical cup-shaped internal protrusions to retain a ball shaped valving member,...

Matches 1 - 21 out of 21