Pumps inventions 06/06

20060140776 - Vacuum pump: The present invention is to provide a vacuum pump in which an electrical equipment section for rotating a rotor is efficiently cooled so as to maintain in proper temperature, and further several types pumps capable of using common vacuum pump components even for a vacuum pump having a different size...

20060140777 - Control system for the movement of a piston: A control system is provided for controlling the movement of the piston of the fluid-pumping device, the piston being displaceable in a block of the fluid-pumping device and being driven by a motor fed by a voltage, comprising a semiconductor electronic system cyclically applying the voltage to the motor to...

20060140778 - Reciprocating positive displacement pump for deionized water and method of cooling and lubricating therefor: A method of lubricating and cooling a de-ionized water positive displacement pump having a reciprocating piston using tap water instead of de-ionized water to cool and lubricate the plunger and seals, resulting in longer service life of the pump....

20060140779 - Peristaltic injector pump leak monitor: A pump leak monitor for use with a peristaltic pump comprises a pump housing and a pair of electrical contacts disposed along a bottom end of the pump housing. The electrical contacts are located such that the contacts are immersed in fluid when the pump is leaking. The fluid conducts...

20060140780 - Double cone for generation of a pressure difference: The present invention deals with a double-cone device that produces enhanced suction, pressure amplification and reduced noise. The enhancement is achieved is by using a continuous geometry for the two frustroconical sections of the double-cone device. Further, a plurality of holes on the exit cone is used to suck the...

20060140781 - Hydraulic cylinder: A fluid pressure cylinder has a piston rod 18 fixed to a piston 26 and projecting outside a cylinder body 23. A lock surface 43 inclining to a radial direction of the piston rod 18 is formed in an engagement member 31 provided in the piston rod 18. A lock...

20060140782 - Micropump and method for the production thereof: The invention relates to a micropump comprising a pump membrane (5) which can be moved by modifying the volume of a pump chamber which is adjacent to the pump membrane (5) and a base part (1), also comprising two valves which are arranged in recesses (10,11) in the base part...

20060140783 - Mobile concrete pump with distributing boom: A mobile concrete pump comprising a structural frame (14) mounted on the undercarriage (10) of a truck chassis (12), a boom stand (22) that is provided on the structural frame (14) and that is rotatable about a vertical axis (20) and a concrete distribution boom (24) configured in the form...

20060140784 - Support structure for a portable air compressor: A portable air compressor assembly includes a tubular frame having a pair of parallelogram shaped side sections. A support plate is connected between the side sections and horizontally positioned in a compressor normal operating position. A plurality of operating components connect to the support plate. A fluid pressure tank is...

20060140785 - Reciprocating compressor: A reciprocating compressor includes a front-side delivery chamber 18a formed at a front-side cylinder head 6, a rear-side delivery chamber 18b formed at a rear-side cylinder head 8, a plurality of delivery passages 12a and 12b formed at cylinder blocks 2 and 4 and an outlet port 16 that communicates...

20060140786 - Electromagnetic vibrating pump: The object of the present invention is to provide an electromagnetic vibrating pump which can enhance dust collecting function, reduce the number of times of maintenance working and improve the rate of operation. The present invention is an electromagnetic vibrating pump, having a suction orifice sucking air and vent orifices...

20060140788 - Control arrangement for an induction motor compressor having at least three windings, a torque-augmentation circuit, a starting capacitor and a resistive element: Apparatus for driving a three-phase compressor assembly from a single-phase electrical power supply having first and second power lines, said three-phase compressor assembly comprising a compressor having a rotatable shaft, an electrical motor having a rotatable shaft coupled to the rotatable shaft of the compressor, the electrical motor having at...

20060140789 - Control arrangement for an induction motor compressor having at least three windings, a torque-augmentation circuit, a starting capacitor and a resistive element: Apparatus for driving a three-phase compressor assembly from a single-phase electrical power supply having first and second power lines, said three-phase compressor assembly comprising a compressor having a rotatable shaft, an electrical motor having a rotatable shaft coupled to the rotatable shaft of the compressor, the electrical motor having at...

20060140787 - Hydraulic assembly: A hydraulic assembly including a reservoir, a pump arrangement, hydraulic control elements, and an electric motor for the pump arrangement whose components are coaxially arranged along a straight axis, possibly overlapping one another partially, is constructed having smaller dimensions and with simpler construction. The pump arrangement is therefore an axial...

20060140790 - G-rotor pump: Disclosed is a G-rotor pump in which a lid and a bottom of a pump housing are made of plastic. A spacer that supports the bottom is produced as a single piece with the lid, whereby the G-rotor pump can be embodied in a particularly inexpensive manner....

20060140791 - Miniature rotary compressor, and methods related thereto: Disclosed is a rolling piston rotary compressor for use with primary refrigerants that is miniaturized for portable and mobile applications for which size and weight are often crucial. The miniature rotary compressor comprises a compressor mechanism, a brushless DC motor and a casing. The compressor mechanism comprises, a cylinder, a...

20060140792 - Displacement type compressor: In order to make a displacement type compressor be able to reliably start without increasing an outside diameter dimension of the compressor while using a self-start synchronous motor having high energy efficiency, the displacement type compressor according to the invention includes the self-start synchronous motor which starts as an induction-motor...

20060140793 - Offset-drive magnetically driven gear-pump heads and gear pumps comprising same: Magnetically driven gear-pump heads and pumps are disclosed. An exemplary gear-pump head includes a housing, a magnet cup, a pump driving gear, and a pump driven gear. The housing has a pump axis and defines a pump cavity. The magnet cup extends along the pump axis and contains a driven...

20060140794 - Vacuum pumping arrangement: A vacuum pumping arrangement comprises a drive shaft, a motor for driving said drive shaft, a molecular pumping mechanism and a regenerative pumping mechanism. The drive shaft is arranged for simultaneously driving the molecular pumping mechanism and the regenerative pumping mechanism. The drive shaft is supported by a lubricant free...

20060140795 - Vacuum pumping arrangement: A vacuum pumping arrangement comprises a turbomolecular pumping mechanism and a molecular drag pumping mechanism connected in series. A rotor of the molecular drag pumping mechanism is supported by the rotor blades of the turbomolecular pumping mechanism....

20060140796 - Electric fan: An electric fan includes a motor unit, a pair of opposite fan units, a bracket, a stand, and a rotation-enabling mechanism. The motor unit includes a motor having two opposite output shafts, and a motor casing surrounding the motor and having a bottom side that has two opposite end portions....

20060140797 - Apparatus for preventing backflow of gas of scroll compressor: An apparatus for preventing backflow of a gas of a scroll compressor includes: a hermetic container provided with a discharge pipe through which a gas is discharged; a fixed scroll fixedly coupled in the hermetic container; an orbiting scroll orbiting in meshing engagement with the fixed scroll to compress gas...

20060140798 - Infusion device: A user-friendly infusion device is provided, and more particularly, a infusion device including a user interface capable of providing necessary alarms to a user (a healthcare worker) when problems occur when setting a dose and a infusion flow rate before a infusion. The infusion device includes: a setting unit for...

20060140799 - Self-loading peristaltic pump for extracorporeal blood circuit: A peristaltic pump is disclosed having pump motor with a rotating motor shaft and a shaft axis; a peristaltic pump head rotatably mounted on the motor shaft; a raceway having a semi-circular track arranged around the pump head and coaxial with the shaft axis, wherein the track has a beveled...

20060140800 - Injection moldable piston rings: An oil-less/oil-free air brake compressor comprising a bore, a piston positioned for reciprocating in the bore, the piston having an annular recess and a rigid polymeric piston ring received within the annular recess, the piston ring having a predetermined non-circular profile in the free state....

20060140801 - Air pump: The invention relates to an improved arrangement of an air pump which can be inserted into the seat pillar (50) of a bicycle and which comprises a cylinder (2), a piston with a piston rod (3), a handle (4) and an air outlet valve (5) which is displaceably connected to...

20060133941 - Pressure regulated method for preventing cavitations in a technical system: A pressure regulated method for a technical system that serves to prevent cavitations in a liquid medium, which is conveyed inside a conduit section consisting of a pump, a pressure sensor, a flowmeter and of a first valve. The pump pressure of the pump is regulated by the pressure sensor...

20060133942 - Holding device for fixing a fuel pump in a surge pot: In a device for fixing a fuel pump in a surge pot within a fuel tank, wherein the fixing device comprises a cover which, in the assembled state, sealingly closes off the surge pot, the cover includes a dome-shaped section which accommodates the top of the fuel pump such that...

20060133943 - Piston compressor cylinder arrangement, particularly for a hermetically enclosed refrigerant compressor: The invention concerns a piston compressor cylinder arrangement (1), particularly for a hermetically enclosed refrigerant compressor, with a cylinder body (2) and a cylinder head arrangement (7), the cylinder body (2) having a first front side (6) in the area of the cylinder head arrangement (7) and a second front...

20060127224 - Air compressor control: Controlling air compressors based on a temperature of air compressed by the air compressor. A temperature of air compressed by the air compressor is sensed. The sensed compressed air temperature is compared with a predetermined threshold temperature. The air compressor is deactivated when the sensed temperature exceeds the threshold temperature....

20060127225 - Apparatus and method for controlling operation of reciprocating motor compressor: An apparatus for controlling an operation of a reciprocating motor compressor includes a current integrator for integrating an alternating current applied to a motor of the compressor during each one cycle thereof; and a controller for differently controlling a firing angle of a triac during the positive phase and the...

20060127227 - Controller for a motor and a method of controlling the motor: A method of controlling a motor operating a pumping apparatus of a fluid-pumping application. The pumping apparatus includes a pump having an inlet to receive a fluid and an outlet to exhaust the fluid, and the motor coupled to the pump to operate the pump. The method includes the acts...

20060127226 - Hydraulically driven oil recovery system: An oil recovery device and method of use where a submersible pump is in combination with a hydraulic motor. The hydraulic motor is actuated by a pressure differential between hydraulic power lines extending between the motor and a regulation means at or near the surface. A monitoring system evaluates, communicates,...

20060127228 - High pressure open discharge pump system: A high-pressure cam driven open discharge pump system is provided, wherein a high-pressure output at a relatively constant pressure is formed. The pump system includes a plurality of pressurizing subassemblies, each subassembly including a cam follower retained by a cam follower support guided by guide bearings to induce linear motion...

20060127229 - Variable displacement pump and control therefor: A control system for a variable displacement pump. The control system is operably associated with an engine control unit for passively or actively controlling the output of the pump in response to signals from the engine control unit....

20060127230 - Movable concrete pump comprising a distribution boom: A movable concrete pump comprising a structural frame (14) that is mounted on a truck undercarriage (10) of a truck chassis (12), a boom stand (22) which is disposed on the structural frame (14) and can be rotated about a vertical axis (20), and a concrete distribution boom (24) embodied...

20060127231 - 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 respective piston rods that extend along a common fixed axis. The piston rods are rigidly attached to the yoke member of a scotch...

20060127232 - Multistage centrifugal pump: A multistage centrifugal pump in which each stage includes a one-piece or multi-piece housing and an impeller disposed therein. The pump stages are arranged between an inlet end member and an outlet end member and retained therebetween by connectors so as to be connected to a flow-guiding system. All impellers...

20060127233 - Manual hydraulic pump: A manual hydraulic pump includes a cylinder block 10 and an end block 8. The rear end of the cylinder block 10 and the end block 8 defines an end space 21 between them. The cylinder block 10 has cylinders 13 and oil passages 23. Each oil passage 23 extends...

20060127234 - Plunger pump apparatus: A reservoir chamber 33, which communicates with a vent passage 34 provided in an electric motor 11, is formed between a motor casing 20 of the electric motor 11 and a body 13 in which a drain port 59A, which communicates with the reservoir chamber 33, is provided with its...

20060127235 - Compressor sound suppression: A compressor has a housing. One or more working elements cooperate with the housing to define a compression path between suction and discharge locations. An intermediate port is located along the compression path. A branch path extends to the intermediate port. The compressor includes means for limiting pressure pulsations along...

20060127236 - Smart control valve for compressors: Disclosed herein is a smart control valve for compressors that is capable of easily accomplishing compression and communication in a compression chamber of a cylinder, without performing the repetitive on/off operation of the compressor, to change the capacity of the compressor. The smart control valve comprises a valve body mounted...

20060127237 - Device and method for diluting a sample: The present invention provides a pump device 50 which is usable to dilute a sample 52 before analysis. A first pump 54 pumps the sample to a mixing region 58 where it mixes with a diluent 66. A second pump 64 pumps the diluted sample to the analysis instrument. The...

20060127238 - Sample preparation system for microfluidic applications: An apparatus that couples automated injection with flow feedback to provide nanoliter accuracy in controlling microliter volumes. The apparatus comprises generally a source of hydraulic fluid pressure, a fluid isolator joined to the outlet of the hydraulic pressure source and a flow sensor to provide pressure-driven analyte metering. For operation...

20060127239 - Torque locking system for fastening a wear member to a support structure: The present invention is directed to a releasable locking assembly for attaching a wear member to a support structure. It may be used with excavating equipment for attaching ground-engaging teeth to adaptors, lip shrouds to bucket lips, or other analogous uses. The wear member includes at least one pin-retainer-receiving opening...

20060127241 - Pump with axial conduit: In one aspect, a pump for moving air includes an inlet, an outlet, an outer housing adapted to couple to an inflatable device, and an inner housing located within the outer housing. An air conduit is defined between the inner housing and the outer housing. A motor is at least...

20060127240 - Vacuum cleaner impeller and motor assembly: An impeller reduces peak noise in the frequency range of 8˜10 khz and is constructed, in disclosed embodiments, with a lower plate in a shape of a disk, an upper plate spaced apart from the lower plate by a predetermined distance and having a diameter corresponding with a diameter of...

20060127243 - Compressor wheel: An exemplary compressor wheel includes a proximate end, a distal end, an axis of rotation, a z-plane positioned between the proximate end and the distal end and a proximate end extension wherein the extension comprises one or more pilot diameters and an engagement mechanism for engagement with an operational shaft...

20060127244 - Turbocharger: A turbocharger comprising a cartridge which is arranged in a turbine casing for variable turbine geometry; a bearing housing which is arranged between the turbine casing and a compressor housing of a compressor impeller and in which a bearing assembly is arranged for a shaft which supports the turbine wheel...

20060127242 - Turbocharger with removable wheel shrouds and/or removable seals: A turbocharger includes compressor and/or turbine end housing(s) and removable compressor and/or turbine shroud portion(s) configured in relation to the compressor and/or turbine wheel(s) such that either or both of the wheels can be removed, after removal of the respective shroud portion(s), without having to remove the respective end housing(s)....

20060127245 - Pump: A vacuum pump having a high corrosion resistance is disclosed. A member constituting the vacuum pump is composed of aluminum or an aluminum alloy, and the surface of the member is subjected to a plasma oxidation treatment such as an oxidation treatment using oxygen radicals, so that a dense and...

20060127246 - Implantable pump for operation of hydraulic implant: An implantable pump for pumping fluid to or from a hydraulic surgical implant inside a human's or an animal's body comprises a wall forming a chamber for the fluid, the wall including a base plate and a membrane, which is displaceable relative to the base plate to change the volume...

20060127247 - Magnetic pulse pump/compressor system: A magnetic pump system includes a ring shaped electric magnet that when pulsed with high voltage and high current, causes a magnetically deflectable elastic member to collapse over a mandrill with an arcuate outer surface. The volume between the arcuate outer surface and the inside of the elastic member is...

20060127248 - Air pump: An air pump includes a body being composed of two semi-housings. A sleeve is received in an opening at a top of the body. A rim is formed at a top of the sleeve and an annular recess is defined at a bottom of the sleeve. By fasteners through the...

20060127249 - Fluid pump, a fluid-transfer plate and an inductive sensor for a fluid pump: The present invention relates to a fluid pump and a fluid-transfer plate and a sensor for a fluid pump, particularly applicable to linear compressors, for detecting the position of the respective piston and preventing the latter from colliding with the fluid-transfer plate upon variations in the compressor operation conditions, or...

20060127250 - Piston displacement device for reciprocating compressor: A piston displacement device for a reciprocating compressor comprises a piston linearly reciprocated in a cylinder and having a stroke length varied by a reciprocating motor, a plurality of resonance springs for guiding a resonant motion of the piston, and a piston transfer unit for moving the piston forward or...

20060127251 - Electromagnetic pump: There is provided an electromagnetic pump where a plunger 10 including a magnetic body is provided so as to be capable of sliding inside a cylinder that is sealed at both end surfaces thereof by a pair of frames 20a, 20b with spaces between the plunger 10 and the end...

20060127252 - Reciprocating pump system: A reciprocating pump assembly includes a linear electric motor having a cylinder, a rotor, and a stator. A multiple of check valves are located near each end of the cylinder. Pairs of check valves are mounted within a T-shaped fitting which permit each fitting to operate alternatively as an inlet...

20060127253 - Inner drive for magnetic drive pump: An inner drive for a magnetic drive pump includes a magnet supported on a yoke. The inner drive is driven about an axis to pump a corrosive process fluid. The magnet and yoke are fully encapsulated during the molding process to completely surround the magnet and yoke in a protective...

20060127254 - Hydraulic hand pump: A method and apparatus is provided that includes a hand pump having a handle locking mechanism, a counter bored nut, pivoting links, and unlocking valve assembly. The unloading valve assembly allows a pump operator to pump a larger volume of hydraulic fluid and/or to pump to higher pressures in first...

20060127255 - Sealing structure of an up-down type piston assembly for exhausting a content: The present invention relates to the structure of the piston that is operated upward and downward by the revolving operation of the screw pillar for exhausting the liquid content that is contained to the inner portion of case. More particularly, it relates to a sealing structure of a piston assembly...

20060115365 - Pump apparatus: Pumps for Steam Condensates and other Liquids, include receivers that may be connected firstly to the liquid source, and after filling are then pressurised to discharge the liquid to a transfer line, or to a vessel at a higher pressure than that of the source. The use of a small...

20060115366 - Method for controlling operation of compressor and apparatus thereof: A method for controlling an operation of a compressor and its apparatus can easily control an operation of the compressor without a request for a high-priced operation control apparatus by operating the compressor with controlling the amount of currents flowing into a winding coil of a motor (100) of the...

20060115367 - Compressor with fortified piston channel: A compressor is disclosed generally comprising a cylinder head mounted to a cylinder block having a cooling chamber and a piston channel via a bolt. A piston is disposed in the piston channel and has a contact portion that contacts the channel wall, which is integrally formed with the cylinder...

20060115368 - Electrically driven air pump and method for the production thereof: The invention relates to a method to manufacture an electrically driven air pump (10), in particular a method to manufacture a secondary air pump (10) for a motor vehicle with an internal combustion engine, wherein the air pump (10) features a housing (12), in which a pump mechanism (13) with...

20060115369 - Synthetic leather packings for reciprocating piston pump: A packing stack for a reciprocating piston pump is formed of alternating V's of UHMWPE and either a polyurethane thermoplastic elastomer or an olefinic thermoplastic elastomer....

20060115370 - Multilayer fuel module flange: A flange 10 is provided for a fuel pump module for a vehicle. The flange includes a first portion 12 of acetal material and a second portion 14 of an acid resistant material provided directly over at least certain regions of the first portion 12....