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7338262 |
Downhole compressor
A downhole dynamic compressor comprises an electric motor having a stator 6 with stationary windings and an armature with permanent magnets 7 supported on gas bearings 9, 10 for rotation...
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7318708 |
Check valve for a submersible turbine pump
The present invention provides a submersible turbine pump (STP) comprising a check valve located within a hydraulics cavity, wherein the STP provides the ability to depressurize the hydraulics...
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7303096 |
Liquid delivery system
A liquid delivery system includes a first reservoir having a first outlet through which liquid is delivered. A first delivery outlet is located at the lower portion of the first reservoir and a...
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7290979 |
Circumferential flow pump
In a circumferential flow pump, a first groove sectional area (S 1 ) of a feed passage at a pump cover side is set to be smaller than a second groove sectional area (S 2 ) of a feed passage at a...
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7270178 |
Horizontally oriented gas separator
A gas restrictor for an intake of a horizontally oriented submersible well pump has a tubular housing and a number of apertures. A sleeve is mounted within the housing for rotation relative to the...
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7264449 |
Automatic liquid collection and disposal assembly
A liquid collection and disposal assembly for collecting and disposing of drainage liquid, the liquid collection and disposal assembly disposable in a pit and having a basin assembly with a...
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7217107 |
Protector for electrical submersible pumps
A system and method for protecting a motor for a submersible pumping system. A variety of motor protectors are provided for application in variable temperature environments and multiple wellbore...
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RE39481 |
Device for transmitting motion between the rotor of a synchronous permanent-magnet motor and the working part, having an increased free rotation angle
A device for transmitting motion between the rotor of a synchronous permanent-magnet motor and the working part, having an increased free rotation angle, which comprises at least two motion...
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7165953 |
Device for conveying a liquid
A device for conveying a liquid, in particular a cutting liquid from a machining operation containing production residues. The device includes a vertical pump having a pump housing ( 14 ), a pump...
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7118357 |
Water supply system
A water supply system has its housing and pressure tank sized so that the pressure tank fits within the housing, thus avoiding the need for another separate opening in the ground for the pressure...
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7118354 |
System and method for improving petroleum dispensing station dispensing flow rates and dispensing capacity
A submersible pump-motor assembly for use in dispensing petroleum from petroleum storage tanks. The pump-motor assembly of the present invention enhances the performance characteristics of the...
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7091638 |
Modular end bell construction for a submersible motor unit
An end-wall unit for a submersible motor unit and a submersible motor unit for use in driving a pump including a housing that extends along a longitudinal axis and defines an interior chamber, a...
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7086473 |
Submersible pumping system with sealing device
A submersible pumping system includes a pump assembly that is connected to a motor assembly. The pump assembly includes a pump intake having an intake hole, a pump housing connected to the pump...
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7074014 |
Dipping type pump where discharging performance at a time of actuation has been improved
In a dipping type pump where a rotary shaft extending from a motor into a pump casing disposed in liquid is mounted with impellers, and liquid is sucked from a sucking port at a lower portion of...
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7066720 |
Fan housing
In a fan housing, a surrounding wall extends uprightly from an inner surface of a base wall that is formed with a wire hole. A power wire, which is coupled to a fan motor mounted on the inner...
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7057316 |
Downhole torque generator
A torque-generating apparatus includes a first assembly ( 10, 25 ) including a generally cylindrical member of magnetically soft material and having a longitudinal axis and a second assembly ( 2 )...
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7052242 |
Multi-fan assembly comprising a servomotor driven vertical oscillation means for each fan
A multi-fan assembly includes: a down rod assembly having a first end for fixing to a ceiling wall and having a second end provided with a canopy, a rotary assembly being fixed to a lower end of...
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7048520 |
Multistage sealed coolant pump
A multistage sealed pump is provided for use in an X-ray tube cooling system which is substantially more efficient than pumps of known construction and which provides substantially higher pumping...
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7025574 |
Process for assembly of an electric pump, and a vibration damper for such a pump
An electric fuel pump includes a pump proper ( 1 ) having a pump body ( 2 ) that includes an induction orifice ( 3 ), a delivery orifice ( 4 ), and electrical terminals ( 5,6 ). A cage ( 7 ) is...
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7014432 |
Fuel pumping unit, with a plurality of commutator brush assemblies with engaging members for restricting brush movement toward the pump motor section
A fuel pump includes a housing, a pump section, a motor section including a commutator, a cover disposed at one end of the housing, a pair of brushes disposed in a pair of brush holes formed in the...
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7008196 |
Electrically motorized pump having a submersible sleeve bearing
The electrically motorized pump has a low energy loss because it uses of the shaft and the sleeve made from synthetic resin composition obtained by uniformly dispersing fine powder of RBC or CRBC...
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7007828 |
Chemical metering pump
A liquid chemical metering pump ( 24 ) is described that can be fully submerged within a hazardous liquid chemical transport/storage container ( 28 ). The pump ( 24 ) includes a discharge adaptor (...
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6986650 |
Fluid pumping apparatus
A method and apparatus suitable for coupling seismic or other downhole sensors to a borehole wall in high temperature and pressure environments. In one embodiment, one or more metal bellows mounted...
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6913443 |
Oscillating means for multi-fan assembly
An oscillating arrangement for a multi-fan assembly includes a down rod assembly which is provided for connecting to a hanging assembly, on the hanging assembly is provided two sets of fixing arms...
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6910870 |
High temperature pothead
The present invention provides a high temperature pothead used to provide power to a submersible motor. More specifically, the present invention provides a high temperature pothead that does not...
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6899532 |
Liquid-tight electrical entry system with integral ground tab, particular to submersible pumps
An electrical cord entry system for a submersible pump. The cord entry system includes a receptacle assembly for providing unimpeded transmission of electrical power and/or electrical signals...
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6890160 |
Fuel pump having electrically biased shell
A fuel pump is provided that is submersible within a fuel, for example, within a fuel tank of an automotive vehicle and is particularly suited for use with high alcohol content fuels that tend to...
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6863124 |
Sealed ESP motor system
The present invention provides a submersible motor and pump system for use in a wellbore. More specifically, the present invention provides a submersible system having a sealed motor and a magnetic...
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6861777 |
Motor pump with balanced motor rotor
A motor pump is provided in which the motor rotor is optimally force balanced for enhanced operation. The motor pump includes a pump head for pressurizing a fluid, and an electric motor drives the...
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6857859 |
Gasket for jet pump assembly of a fuel supply unit
A fuel supply unit 10 includes a fuel reservoir 22 for holding fuel, a fuel pump 18 within the reservoir for pumping fuel from the reservoir, a jet pump assembly 16 within the reservoir for...
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6857392 |
Aquarium pumping and airing apparatus
An aquarium includes a pump disposed in a chamber of a container to circulate water and having a spindle. An air supplying device is coupled to the spindle of the pump and driven by the spindle of...
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6851935 |
Above the motor bellows expansion member for a submersible pump
A multi-diameter bellows is provided in a seal section of a submersible pump to assist in allowing expansion of dielectric oil within the submersible pump, to equalize the casing annulus pressure...
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6832901 |
Aggregate for conveying fuel
The unit includes an electric drive motor ( 12 ) and a pump section ( 24 ) that are situated next to each other in a common housing ( 10 ) designed at least nearly in the shape of a hollow...
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6830439 |
Electric fuel pump with universal relief valve installed in the pump inlet
A universal relief valve assembly ( 30 ) installed in an electric fuel pump ( 10 ) for returning fuel from an outlet portion ( 16 ) of the fuel pump back to the inlet side of the pump. A cartridge...
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6824366 |
Fuel pump with a terminal plate connector and means for securing the plate in place
A fuel pump in which a terminal plate can be liquid-tightly mounted to a body upper and prevented from being dislodged from the body upper without the need of other component parts is provided. The...
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6823831 |
Flame arrestor system for fuel pump discharge
A flame arrestor for a fuel pump having housing extending intermediate an upstream end defining an inlet port and a downstream end defining an outlet port coupled in fluid communication with the...
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6773241 |
Pump unit
The intermediate part is fixed between the unit case body, which integrally houses the fuel pump and the filter element, and the unit case supporting flange, which hangs the pump unit from the...
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6761544 |
Lubrication system for downhole application
A component, such as a submersible motor, having a lubrication distribution system. The component includes an outer housing having a rotatable shaft disposed within the housing. The shaft is...
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6739844 |
Fuel pump with contamination reducing flow passages
A vehicle regenerative-type fuel pump which reduces the possible accumulation and effects of contamination relative to impellers with outer ring members. The outlet port on the pump cover member is...
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6729848 |
Sensor mount for sump draining apparatus
A sump draining apparatus having an pressure transducer engaged in a receptacle that is in turn engaged in an open-ended collar of a housing. The receptacle and thus the pressure transducer is...
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6729847 |
Bilge pump seal and float actuator
A bilge pump includes an outer housing having an interior wall separating a first cavity and a second cavity, an on/off electrical switch located within the first cavity, and a single-piece float...
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6719525 |
Submerged motor vane wheel rotation direction control structure
A submerged motor vane wheel rotation direction control structure includes a blade pivoted to a locating block inside of the water guide chamber of a submerged motor, a vane wheel, the vane wheel...
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6716000 |
Fuel pump delivery unit
A fuel delivery unit ( 2 ) for delivering fuel from a tank ( 1 ) in which a support ( 6 ) connects a flange ( 4 ) to a surge chamber ( 5 ) through a pivot bearing ( 12 ). The pivot bearing ( 12 )...
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6712590 |
Fuel drawing device for motor vehicle tank
A device for drawing fuel for a motor vehicle tank, the device comprising a drawing pump ( 100 ) and a fine filter ( 210 ) placed upstream from the pump ( 100 ), and wherein: the housing ( 200 ) of...
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6709234 |
Impeller shaft assembly system
An impeller shaft assembly, coupler and molten metal pump are described, in which a coupling member is configured to be secured to a pump drive shaft and includes a socket part that is defined by a...
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6702027 |
Gas dissipation chamber for through tubing conveyed ESP pumping systems
A gas dissipation chamber, installed between the tubing crossover and the production tubing string, for a through tubing conveyed ESP pumping system prevents gas discharged from the gas separator...
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6698916 |
Underwater agitation pump
An underwater agitation pump comprises an impeller casing in which an impeller driven by a motor is rotatably accommodated, an agitated material suction guide cylinder of a hollow cylinder which...
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6692225 |
Liquid pressing device
A liquid pressing device includes mainly a power device consisting of a motor with a spindle, an upper cap on the motor and a lower cap under the motor, a shell for containing the power device, a...
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6688844 |
Automotive fuel pump impeller
An impeller for a fuel pump includes an impeller body having a substantially disk shape. A plurality of radially outwardly extending vanes extend from the impeller body with a plurality of...
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6682309 |
Submersible pump system
The present invention is a submersible pump system that includes a main housing, which is watertight and contains a submersible pump therein. There is a liquid suction inlet connected to the main...
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