| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 417199100 | DIVERSE PUMPS | 39 |
| 20090162214 | PORTABLE PUMPING APPARATUS FOR CONCURRENTLY PUMPING LIQUID FROM A SOURCE CONTAINER TO A DESTINATION CONTAINER AND PUMPING VAPOR FROM THE DESTINATION CONTAINER TO THE SOURCE CONTAINER - A portable pumping apparatus for concurrently pumping liquid from a source container to a destination container and pumping vapor from the destination container to the source container comprises a liquid and vapor pump having a liquid inlet, a liquid outlet, a vapor inlet and a vapor outlet. There is a selectively controllable actuation mechanism for actuating the liquid and vapor pump to thereby concurrently pump liquid from the liquid and vapor pump through the liquid outlet and vapor into the liquid and vapor pump through the vapor inlet, and concurrently pump vapor from the liquid and vapor pump through the vapor outlet and liquid into the liquid and vapor pump through the liquid inlet. | 06-25-2009 |
| 20090169398 | TRANSFER PUMP FOR HIGH-PRESSURE GASOLINE INJECTION - Transfer pump for high-pressure petrol injection of the type comprising a piston ( | 07-02-2009 |
| 20100119383 | Pump unit comprising a main pump and a charge pump with a variable pump capacity - The invention relates to a pump unit ( | 05-13-2010 |
| 20100284829 | GAS TOLERANT SUBSEA PUMP - A combined canned motor-pump operates directly in the process fluid without the need for shaft seals or buffer or lubricating fluids. The pump incorporates an integral gas-separating system that includes gas separating hydraulics and a flow path that returns the gas to the main gas/oil separator. The gas-separating system includes a pump inlet for accepting incoming multiphase flow, at least one blade rotatable about the axis of rotation, an open annulus region for separating gas from liquid in the multiphase flow, at least one radial hole in the shaft for directing separated gas to the axial hole, and a pump outlet for discharging liquid from the pump. | 11-11-2010 |
| 20110123361 | VARIABLE CAPACITY TYPE ROTARY COMPRESSOR - Disclosed is a variable capacity type rotary compressor, in which a refrigerant sucked via one suction pipe can be alternately sucked into each compression space via a communication passage between a plurality of cylinders so as to reduce the number of components and the number of assembly processes, thereby remarkably reducing a fabricating cost, a refrigerant within an idling cylinder can be prevented from flowing back into another cylinder so as to improve the performance of the compressor, a welding space can be ensured when connecting connection pipes so as to realize a welding automation, thereby further reducing the fabricating cost, and a mode switching valve can be stably fixed to an appropriate position so as to attenuate noise due to vibration of the compressor. | 05-26-2011 |
| 20110142687 | FLOOD WATER REMOVAL SYSTEM - Flood water removal systems including a motor, a vacuum generating device, a discharge pump, and a vacuum tank can be efficiently arranged to be transversely mounted to a vehicle. Certain flood water removal systems can include a supercharger driven by the engine to generate vacuum. The systems can include a valve to prevent collapse of a vacuum tank and maintain a predetermined vacuum pressure without varying the speed of the motor. The systems can also include a two-stage exhaust that blends exhaust from the blower with motor exhaust in a silencer to reduce noise generation for operation in residential or other noise-sensitive settings. The systems can also include a vacuum tank comprising a noise reduction baffle to further reduce noise generation. | 06-16-2011 |
| 20120014815 | HYBRID VEHICLE - A hybrid vehicle has an internal combustion engine ( | 01-19-2012 |
| 20120039727 | Air Conditioning Unit for Rescue Shelter Units - An air conditioning unit designed for a rescue shelter in a mine. The present invention utilizes compressed gas to power a pneumatic piston system that is able to covert the linear forces from the pistons into rotational forces. The present invention utilizes a swash plate unit to translate linear motion into rotation motion to power a conventional air conditioning system. | 02-16-2012 |
| 20120201696 | VACUUM PUMP - The present invention provides a vacuum pump ( | 08-09-2012 |
| 20120308408 | SUBSEA COMPRESSION SYSTEM FOR WELL STREAM BOOSTING - A subsea compression station is provided. The subsea compression station comprises a separator, a compressor configured to compress and discharge gas separated from a well stream ingested into the separator, a pump configured to pump liquid separated from the well stream, and an electrical motor drivingly connected to a compressor rotor comprising a compressor rotor shaft connectable to a pump rotor through a speed reduction device, wherein the speed reduction device is configured to bring the pump rotor in co-rotation with the compressor rotor at a reduced speed. | 12-06-2012 |
| 20130189124 | VERTICAL SELF-PRIMING PUMP - The present invention claims a vertical self-priming pump which comprises a pump body, a motor and a medium backflow blocking device, wherein a middle partition plate is provided inside the pump body, and a flow guide body is fixed on the middle partition plate; the motor is fixed on the pump body for driving a pump shaft to rotate; and an impeller that is arranged in the flow guide body is fixed on the lower end of the pump shaft; a backflow gap channel is formed between the outer circumferential surface of the impeller and the inner wall of the flow guide body; and the medium backflow blocking device comprises a static ring and a moving ring which are vertically and oppositely arranged, and an elastic supporting sleeve; the moving ring is embedded on the upper surface of the impeller, the elastic supporting sleeve is fixed on the upper surface of the flow guide body, and the static ring is embedded on the lower surface of an elastic supporting ring. During normal working, the elastic supporting sleeve of the present invention in the medium backflow blocking device generates a downward deformation under the action of liquid medium pressure, thus the moving ring and the static ring closely contact with each other and block the backflow gap channel, therefore the volume loss generated by the backflow is avoided, and the pump efficiency is improved. | 07-25-2013 |
| 417199200 | Priming and venting | 2 |
| 20110044827 | SELF PRIMING PUMP ASSEMBLY WITH A DIRECT DRIVE VACUUM PUMP - A self-priming pump assembly is disclosed. In an illustrative embodiment, the self-priming pump assembly includes a motor, a main pump having a main pump impeller, a vacuum pump having a vacuum pump impeller, and a drive shaft driven by the motor. The main pump impeller and the vacuum pump impeller may be directly coupled to and driven by the drive shaft, and may rotate about the rotation axis of the drive shaft. In some instances, the vacuum pump impeller is situated between the motor and the main pump impeller, while in other instances, the main pump impeller may be situated between the vacuum pump impeller and the motor. In some cases, bearings may be provided at or near the vacuum pump to help support the vacuum pump relative to the drive shaft. | 02-24-2011 |
| 20110318196 | INTEGRATED PUMP PRIMING SYSTEM - A vacuum accessory and a pump motor assembly are disclosed. An exemplary pump motor assembly includes a motor having a housing. The motor drives a pump impeller. The pump motor assembly further includes a primer assembly secured to the motor, the primer assembly defining an impeller cavity receiving the pump impeller. The primer assembly includes a primer cavity in fluid communication with the impeller cavity, and a fluid inlet in fluid communication with the primer cavity. The fluid inlet is configured to receive fluid from a fluid reservoir, and the pump impeller is configured to pump the fluid from the impeller cavity when the motor is driven. | 12-29-2011 |
| 417200000 | Priming with liquid level responsive control | 1 |
| 20090016901 | Self-priming electronic metering pump and priming methodology - An electronic metering pump system has a fluid flow detector for monitoring the output of the electronic metering pump to detect loss of prime. The fluid flow detector, upon detecting loss of fluid flow, initiates an electronic signal to a downstream solenoid valve which closes the output conduit of the electronic metering pump and facilitates the repriming of the pump and return of output fluid flow. The electronic signal may also be utilized to initiate an warning or alarm to an operator, either directly or by data network, that the system requires attention. | 01-15-2009 |
| 417201000 | Including rotary nonexpansible chamber type | 13 |
| 20090010769 | FLUID TRANSPORTING DEVICE - An arrangement for conveying fluids has a fluid pump ( | 01-08-2009 |
| 20100226794 | Self-Ventilating Centrifugal Pump - In order to ventilate a centrifugal pump ( | 09-09-2010 |
| 20110305586 | SHIP PROPULSION SYSTEM HAVING A PUMP JET - The present invention relates to a ship propulsion system (S) having a pump jet (P), which comprises a pump housing (G) and a drive motor, wherein a rotor ( | 12-15-2011 |
| 20110311376 | JET PROPELLER FOR AIR-CHARGING AND OUTBOARD MOTOR HAVING THE SAME - The invention provides a jet propeller for air-charging, and an outboard motor having the same. In addition to the propelling function, the present invention can be coupled with special function nozzle device to use the same apparatus achieving the following functions: air-charging, air pumping, as a spray gun, high-pressure water spray (fire fighting or cleaning), and water pumping. The present invention does not use the ordinary propeller blade, which is not easy to harm the human being or marine creatures, or to be collided and wrapped by miscellaneous objects in the water, and provides a multi-purpose, safe and environment-friendly propeller. | 12-22-2011 |
| 20120257992 | AIR COMPRESSOR - An air compressor is provided. The air compressor includes a compression mechanism including a cylinder to generate compressed air, a motor provided to drive the compression mechanism, an inverter board including an inverter to control a rotation of the motor, two elongated tanks provided to store the compressed air generated by the cylinder, and a fan rotated by the motor to supply cooling air. The tanks are arranged below the cylinder and the motor, and the inverter board is arranged between the cylinder and the tanks. | 10-11-2012 |
| 20130022478 | CAM PLATE AND AN APPLIANCE INCLUDING THE CAM PLATE - A cam plate for use with a pump includes at least one camming surface configured to enable an impeller to rotate in a first direction and substantially prevent the impeller from rotating in a second direction opposite the first direction. A ring recess is defined in the cam plate. The ring recess is configured to receive at least a portion of a cam ring that is configured to rotate within the ring recess. A follower recess is at least partially defined by the at least one camming surface and extends from the ring recess. The follower recess is configured to receive at least one cam follower therein. | 01-24-2013 |
| 20130259712 | VACUUM EVACUATION APPARATUS - The present invention relates to a vacuum evacuation apparatus which can be mounted in a posture that can freely be selected a vacuum evacuation apparatus for evacuating a container from an atmospheric pressure to a high vacuum or less includes a first vacuum pump for evacuating the container to a high vacuum or less, and a second vacuum pump for evacuating the container from an atmospheric pressure to a medium or low vacuum the first vacuum pump and the second vacuum pump are integrally connected to each other into an integral unit. | 10-03-2013 |
| 20140169991 | STRUCTURE FOR CONTROLLING HYDRAULIC PUMP FOR DRIVING ENGINE COOLING FAN OF HYBRID VEHICLE - A system for controlling a hydraulic pump for operating an engine cooling fan of a hybrid vehicle, which allows a hydraulic pump for driving an engine cooling fan of a hybrid vehicle to be driven by power provided from a transmission PTO of a hybrid vehicle while an engine is idling. Furthermore, the hydraulic pump to be driven may be driven by power supplied from an electric motor when the engine is stopped. As a result, an engine coolant temperature may be properly managed by operating the engine cooling fan of a hybrid vehicle even when the engine is stopped. | 06-19-2014 |
| 20150330408 | AIR COMPRESSION APPARATUS - The present application discloses an air compression apparatus mounted on a vehicle. The air compression apparatus includes a first air compressor configured to generate first compressed air, a first cooling fan configured to send first cooling wind in a first direction to cool the first air compressor, and a second air compressor aligned with the first air compressor in a second direction intersecting with the first direction. The second air compressor generates second compressed air. | 11-19-2015 |
| 20160017879 | TRIPLE ACTION AIR PUMP - A triple action air pump includes a manual pump mechanism and an electrical pump mechanism. The mechanical pump mechanism has a piston mounted within a cylindrical housing, a shaft having a first end coupled to the piston and a second end that passes out of the cylindrical housing via an aperture in an end of the cylindrical housing, and a handle coupled to the second end of the shaft. The mechanical pump mechanism operates on both upstrokes and down-strokes of the handle. In one embodiment, the cylindrical housing has a single inner chamber and the electrical pump mechanism is mounted within the same chamber as the piston. In a second embodiment, the cylindrical housing has two separate inner chambers, with the mechanical pump mechanism mounted within one chamber and the electrical pump mechanism mounted within the other chamber. | 01-21-2016 |
| 20160186738 | Reciprocating Compressor or Pump and a Portable Tool Powering System Including a Reciprocating Compressor - A reciprocating compressor or pump features a manifold arranged not only to define a hollow interior for receiving fluid discharged from a plurality of cylinders but also to define a base or frame on which the cylinders are carried. Unique valves formed in part by flexible material reduces the likelihood of fatigue and increases efficiency by retaining less heat relative to conventional reed valves. A compressor or pump mounted at an end of a handle extending parallel to a motor housing likewise extending from the compressor or pump provides an easy to carry portable assembly. A fan mounted between a motor and a compressor pulls air through the compressor inlet to both cool the motor and feed the compressor. A portable tool system powers both pneumatic and electric tools. Connecting rod structures for radial compressors or pumps provide improved strength and easier assembly | 06-30-2016 |
| 417203000 | Preceding diverse pump | 2 |
| 20090110565 | SANITARY PUMP ASSEMBLY - A progressing cavity pump system including a feeder assembly including a hopper for receiving material to be pumped therein. The feeder assembly includes an auger housing receiving an auger therein. The auger housing has an underlying portion positioned generally below the hopper and having a radial opening open to the hopper, and an extension portion which is generally radially closed. The extension portion and the underlying portion are of a one-piece, seamless construction. The pump system further includes a progressing cavity pump including a rotor, a stator, an inlet and an outlet. The rotor is rotationally disposed inside the stator such that rotation of the rotor causes material in the pump to be pumped from the inlet toward the outlet, and the inlet is fluidly coupled to the extension portion. | 04-30-2009 |
| 20090246038 | TURBO VACUUM PUMP - An oil-free turbo vacuum pump is capable of evacuating gas in a chamber from atmospheric pressure to high vacuum. The turbo vacuum pump includes a pumping section having rotor blades and stator blades which are disposed alternately in a casing, a main shaft for supporting the rotor blades, and a bearing and motor section having a motor for rotating the main shaft and a bearing mechanism for supporting the main shaft rotatably. A gas bearing is used as a bearing for supporting the main shaft in a thrust direction, spiral grooves are formed in both surfaces of a stationary part of the gas bearing, and the stationary part having the spiral grooves is placed between an upper rotating part and a lower rotating part which are fixed to the main shaft. | 10-01-2009 |
| 417204000 | Moving partition or cylinder of rotary pump forms or actuates reciprocating pump | 1 |
| 20080240935 | Balanced variable displacement vane pump with floating face seals and biased vane seals - A vane pump assembly including a cam ring having an elliptical inner bore defining a hydraulic pumping chamber, the pumping chamber having an interior camming surface. The cam ring defines ports for admitting fluid into the pumping chamber. A rotor, within the cam ring, defines a plurality of radial vane slots. A vane assembly is supported in each vane slot to define vane buckets. Each vane assembly has an end dynamic vane seal for reducing leakage between the buckets. Front and rear side plates, separated by an annular spacer, enclose the pumping chamber. The pump assembly may also include floating front and rear rotor seals for reducing radially inward leakage. Each rotor seal is disposed within a groove formed in the rotor, wherein discharge pressure urges the rotor seals axially outward from the pumping chamber to create an effective seal against the respective side plate. | 10-02-2008 |
| 417205000 | Series | 11 |
| 20080267790 | Electronically Controlled Vacuum Pump - A vacuum system comprises, as an integral assembly, a vacuum pump with drive motor, a purge valve, a roughing valve and an electronic control module. A cryogenic vacuum pump and a turbomolecular vacuum pump are disclosed. The control module has a programmed processor for controlling the motor and valves and is user programmable for establishing specific control sequences. The integral electronic control module is removable from the assembly and is connected to the other devices through a common connector assembly. In the turbomolecular pump system proper introduction of a purge gas through the purge valve is detected by detecting the current load on the pump drive or by detecting foreline pressure. To test the purge gas status, the purge valve may be closed and then opened as drive current or pressure is monitored. After power failure, the controller will continue normal drive of the turbomolecular pump so long as the speed of the pump has remained above a threshold value. Otherwise the vent valve will have been opened, and a start-up sequence must be initiated. During shutdown, power to the pump drive motor is discontinued and the vent valve is opened before the roughing valve is closed. | 10-30-2008 |
| 20090060754 | Hybrid Compressor - A hybrid compressor has a first compression mechanism driven only by an external drive source; a second compression mechanism driven only by a built-in electric motor; suction paths for sucking gas to be compressed into the first compression mechanism; communication paths for sucking the gas from the first compression mechanism side into an electric motor side suction chamber; and suction passageways for sucking the gas from the electric motor side suction chamber to the second compression mechanism side. The positions and/or number of the communication paths and/or the suction passageways, and/or the positions and/or number of communication openings, which are openings of the communication paths and opened at the electric motor side suction chamber, and/or suction openings, which are openings of the suction passageways, opened at the electric motor side suction chamber, and located on a side opposite to the side of the communication openings, are limited so that, with respect to at least a part of the gas sucked into the electric motor side suction chamber via the communication paths, a gas flow is formed from the communication openings to the suction openings. In this structure, a built-in electric motor section can be appropriately cooled over a wider area by the sucked gas, so that a rise in temperature of the motor section can be properly suppressed. | 03-05-2009 |
| 20100040483 | Compressible fluid pumping system - An invention is claimed that enables the pumping of compressible fluids at high pressures when an accurate flow is desired. Two pressure sources, for example pumps plumbed in series, separate thermodynamic work, such as pressurization, at the first pressure source from a volumetric or matter metering function in the second pressure source. One example is a flowstream delivery for a chemical instrumentation system that is manufactured from relatively unsophisticated pumps yet delivers precise flows with low pulsation (<1 %) over pressures greater than 100 bar. An advantage of one embodiment allows the economical conversion of typical HPLC systems to state of-the-art supercritical fluid chromatography (SFC) systems with minimal modification to system components. | 02-18-2010 |
| 20110223040 | HIGH-PRESSURE PUMP ARRANGEMENT - A high-pressure pump arrangement ( | 09-15-2011 |
| 20110280741 | Helico-axial pump, rotor for a helico-axial pump as well as method for journalling a rotor in a helico-axial pump - The invention relates to a helico-axial pump ( | 11-17-2011 |
| 20130216401 | PUMP DEVICE - The purpose of the present invention is to provide a small, light coolant-pump device equipped with a filter, said coolant-pump device not requiring regular maintenance. The present invention is provided with: a positive-displacement pump ( | 08-22-2013 |
| 20140023525 | FUEL CIRCUIT COMPRISING MEANS FOR CONTROLLING A PUMP - A turbomachine fuel circuit including: a low pressure pump; a high pressure pump; a low pressure conduit connecting the low pressure pump to the high pressure pump; a high pressure conduit supplied by the high pressure pump, in which a component is arranged; a mechanism for testing operation of the component; a check valve capable of closing off a segment of the conduit when the pressure in the low pressure conduit is less than a predetermined threshold value; and the testing mechanism is capable of detecting that the check valve at least partly closes off the segment. | 01-23-2014 |
| 20160201552 | CRANKCASE VENTILATING EVACUATOR | 07-14-2016 |
| 417206000 | Rotary expansible chamber type precedes reciprocating | 3 |
| 20110058962 | COMPRESSOR FOR USE IN A VEHICLE - A compressor for use in a vehicle includes a mechanical compression mechanism including a first casing and a drive shaft. The first casing has therein a first suction chamber and a first discharge chamber. The drive shaft is rotatably supported by the first casing and mechanically driven by a drive source for compression of refrigerant. The compressor further includes a linear electric compression mechanism including a second casing and a piston. The second casing has therein a second suction chamber and a second discharge chamber. The piston is reciprocally movable in the second casing and driven by electromagnetic force for compression of refrigerant. The first casing is integrated with the second casing so as to allow at least one of fluid communication between the first suction chamber and the second suction chamber and between the first discharge chamber and the second discharge chamber. | 03-10-2011 |
| 20130164150 | MULTI-STAGE COMPRESSOR - A multi-stage compressor ( | 06-27-2013 |
| 20130164151 | MULTI-STAGE COMPRESSOR - A multi-stage compressor ( | 06-27-2013 |
