Did You Know...
...that the first rickshaw was invented in 1869 by an American Baptist minister, the Rev. E. Jonathan Scobie, to transport his invalid wife around the streets of Yokohama?
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| Number | Title | Issue Date |
| 8152442 | Centripetal pumping stage and vacuum pump incorporating such pumping stage A molecular spiral-type vacuum pumping stage comprises a rotor disk having smooth surfaces cooperating with a stator. The stator is provided with a plurality of spiral channels at least on the surface facing the rotor disk, wherein the gas to be pumped flows in cent... | 04/10/2012 |
| 8087876 | Fuel pump A fuel pump includes an impeller and a casing member. The impeller defines a plurality of vane grooves arranged in a circumferential direction. The casing member receives the impeller, and the casing member defines therein a pump passage configured to have an arcuat... | 01/03/2012 |
| 8070417 | Disc shaped impeller and fuel pump A disc shaped impeller may comprise an upper face and a lower face. Concavities may be repeatedly arranged along a circumferential direction on the upper face and the lower face. Each concavity may include a front surface, a back surface, an inner surface, an outer ... | 12/06/2011 |
| 8047766 | Electromechanical drive for actuating valves The invention relates to an electromechanical drive for actuating valves, especially in steam turbines including an electromotor, a linear unit, a clutch and an electronic control unit. The linear unit includes a piston rod which is guided in a power-transmission th... | 11/01/2011 |
| 8007226 | Fuel pump A fuel pump includes a rotatable impeller having a plurality of blades and blade ditches on the periphery thereof, a motor section for driving the impeller, and a casing member which accommodates the impeller and has at least one fuel passage along an outer peripher... | 08/30/2011 |
| 7950898 | Fuel pump having impeller A fuel pump includes a housing including an internally-large cylindrical portion coaxial with an internally-small cylindrical portion. A press-inserted portion is press-inserted to the internally-small cylindrical portion. An accommodating cylindrical portion is loc... | 05/31/2011 |
| 7828508 | Fuel pump A fuel pump includes an outer partitioning wall formed with an intake port; an inner partitioning wall formed with a discharge port; and an impeller housed between the outer partitioning wall and the inner partitioning wall, wherein each of the outer partitioning wa... | 11/09/2010 |
| 7806649 | Blower A blower comprising: a vane wheel including a pair of grooves, and blades extending in a radial direction of the vane wheel in each groove, and a casing including stationary flow paths facing to the grooves respectively so that the gas urged in the grooves is capabl... | 10/05/2010 |
| 7722311 | Pressure and current reducing impeller A pump having a housing with a torus and a stripper region. The stripper region has a housing groove formed on the surface of the stripper region. The housing groove has a surface forming a length, width and depth of the groove. The pump also has a cover connectable... | 05/25/2010 |
| 7632060 | Fuel pump having dual flow channel A fuel pump includes a housing, and a motor. An impeller has first and second impeller flow channels having a plurality of vanes positioned therein. The impeller defines a flow passageway extending through the impeller. A cover is attached to the housing and defines... | 12/15/2009 |
| 7500820 | Impeller and fuel pump using the same The outer periphery of a disc-shaped impeller is surrounded with an annular portion. Vane grooves are formed on the inner circumferential side of the annular portion on both sides in the axial direction. The vane grooves, which are adjacent to each other, are partit... | 03/10/2009 |
| 7497656 | Supply pump The invention relates to a supply pump embodied as a side channel pump, whereby several sections (14-16) forming the cross-section of a supply chamber (13) each comprise radii. The origins of the external radii are arranged on the front face of ... | 03/03/2009 |
| 7470104 | Blower A blower comprising: a vane wheel including a pair of grooves, and blades extending in a radial direction of the vane wheel in each groove, and a casing including stationary flow paths facing to the grooves respectively so that the gas urged in the grooves is capabl... | 12/30/2008 |
| 7455496 | Turbine fuel pump A turbine fuel pump includes an impeller having blades, each including a linear blade portion extending linearly in the radial direction of the impeller and a curved blade portion extending circularly curvedly from the head of the linear blade portion to the forward... | 11/25/2008 |
| 7445422 | Hybrid turbomolecular vacuum pumps A hybrid turbomolecular vacuum pump includes a housing having an inlet port and an exhaust port, one or more axial flow stages located within the housing, each of the axial flow stages including a stator and an impeller, each having inclined blades, at least one add... | 11/04/2008 |
| 7351029 | Rotary vacuum blower An impeller, set in rotation by a motor, provided with blades and enclosed in a casing which defines a circumferential annular conduit in which the blades turn. The annular conduit exhibits two openings, respectively an induction mouth for aspirating fluid from outs... | 04/01/2008 |
| 7337869 | Hydraulic hybrid vehicle with integrated hydraulic drive module and four-wheel-drive, and method of operation thereof A vehicle includes an integrated drive module coupled to an axle thereof. The module includes a hydraulic motor configured to provide motive power at an output shaft, and a differential for distributing the motive power to right and left portions of the axle. The hy... | 03/04/2008 |
| 7311491 | Molecular drag, turbomolecular, or hybrid pump with an integrated valve A molecular drag, turbomolecular, or hybrid turbo/drag pump (5) of the invention has an outlet stage with a cylindrical peripheral wall (17) and a radial outlet orifice (23) passing through the cylindrical peripheral wall (17). An annular... | 12/25/2007 |
| 7309206 | Fuel pump received in housing A fuel pump includes a rotor, a rotating member, a pump portion, and a housing. The rotating member is rotated by the rotor to generate suction force for drawing fuel. The pump portion includes a pump casing that receives the rotating member. The housing receives th... | 12/18/2007 |
| 7290979 | Circumferential flow pump In a circumferential flow pump, a first groove sectional area (S1) of a feed passage at a pump cover side is set to be smaller than a second groove sectional area (S2) of a feed passage at a pump base side, whereby the diameter of an eddy flow occurrin... | 11/06/2007 |
| RE39891 | V-blade impeller design for a regenerative turbine A novel impeller for a regenerative turbine fuel pump improves the efficiency of the pump and yet still retains a geometry that allows it to be manufactured by conventional injection molding techniques at a relatively low cost. The impeller comprises a hub, an outer... | 10/23/2007 |
| 7284950 | Impeller and apparatus using the same An impeller rotates for pressurizing fluid in a pump passage. The impeller includes an inner circumferential portion and an outer circumferential portion. The outer circumferential portion has two axial end surfaces that respectively have a plurality of vane grooves... | 10/23/2007 |
| 7267524 | Fuel pump having single sided impeller A fuel pump is provided having improved efficiency by lowering the wet circle index of the pump while maintaining robust axial clearances to meet the demands of an automotive application. One embodiment includes a fuel pump for pressurizing fuel for delivery to an e... | 09/11/2007 |
| 7264440 | Fuel pump A fuel pump in which fuel can pass smoothly through through-holes of an impeller is taught. Through-holes communicate concavities formed in upper and lower faces of the impeller. These through-holes are formed at an inner side region within the concavities. When the... | 09/04/2007 |
| 7244094 | Low noise impeller pumps An impeller pump for a fluid includes a rotary impeller (10; 20) and a pump casing (4). The pump casing defines a first pump channel (51) and a second pump channel (71). The impeller is disposed within the pump casing and opposes to the f... | 07/17/2007 |
| 7240682 | Washing fluid pump The invention concerns a washing fluid pump (1) for windows and/or headlamp cleaning installations on motor vehicles including at least one motor, at least one pump housing (2) with at least one impeller (11) arranged therein, at least one intak... | 07/10/2007 |
| 7217084 | Automotive fuel pump with pressure balanced impeller A rotary fuel pump employs pressure balancing features on the non-vaned side of the impeller to provide localized application of fluid forces so that the impeller is more precisely balanced within the pumping chamber. A generally disc-shaped impeller body has an imp... | 05/15/2007 |
| 7217083 | Regenerative pump having blades received in fluid passage A casing of a regenerative pump forms a generally annular fluid passage, which conducts a fluid. An impeller is rotatably received in the casing and has a plurality of blades, which are arranged one after another in a circumferential direction to provide kinetic ene... | 05/15/2007 |
| 7217085 | Fuel pump of low fuel intake resistance A fuel pump to be disposed in a fuel tank to supply pressurized fuel to an internal combustion engine includes a motor section, a pump section including an impeller driven by the motor section and a cylindrical pump housing having a pump passage extending along the ... | 05/15/2007 |
| 7208056 | Rare earth sintered magnet, and method for improving mechanical strength and corrosion resistance thereof An R-T-B system rare earth sintered magnet having a high mechanical strength and excellent corrosion resistance is provided. The R-T-B system rare earth sintered magnet of the present invention comprises a sintered body comprising a main phase consisting of an R | 04/24/2007 |
| 7198455 | Vacuum pumping arrangement In a pumping arrangement for a chamber, a regenerative pumping mechanism comprises a rotor and a stator having an annular channel within which rotor blades rotate to urge fluid along the channel. The channel has a stripper, a channel inlet positioned adjacent one en... | 04/03/2007 |
| 7175383 | Regenerative fluid pump and stator for the same A regenerative fluid pump (10) comprises a rotor having rotor blades for compressing fluid on two fluid flow paths, the first of which extends between a first pump inlet (12a) and a first pump outlet (14a), and a second of which ex... | 02/13/2007 |
| 7160079 | Turbine fuel pump A turbine fuel pump including a cylindrical casing, an electric motor accommodated in the casing, a pump housing mounted into the casing, and an impeller disposed within the pump housing and driven around an axis in a rotational direction by the electric motor. The ... | 01/09/2007 |
| 7156610 | Turbine type electric fuel pump for automobile Provided is a turbine type electric fuel pump for an automobile having a casing in which a pump portion and a motor portion are installed. The pump portion includes a fuel intake case having a fuel intake hole, a fuel discharge case having a fuel discharge hole, and... | 01/02/2007 |
| 7157828 | Fuel pump for high torque in compact structure In a fuel pump, four permanent magnets are installed in a housing. An armature is installed inside the permanent magnets rotatably. Six magnetic pole coil portions of the armature are installed in a central core. Each magnetic pole coil portion has a coil core, a bo... | 01/02/2007 |
| 7140151 | Electro-mechanical actuator An electro-mechanical actuator for a window lift mechanism including a plurality of motors for driving an output shaft. The actuator may be incorporated into a window lift mechanism including a dual rack and pinion assembly, for driving the pinions along the racks. ... | 11/28/2006 |
| 7125218 | Circumferential flow pump Each of impeller grooves of an impeller has a first bow surface that extends from one end surface of the impeller so as to have a radius R1, a second bow surface that extends from the other end surface of the impeller so as to have a radius r1, and a p... | 10/24/2006 |
| 7121786 | Mix-in structure for gas or the like in pressurization centrifugal pump A mix-in structure for a gas or the like in a pressurization centrifugal pump, capable of mix-discharging liquid and gas or the like to prevent cavitation and of suppressing gas residence in the pump chamber at the time of operation stoppage or the like. It comprise... | 10/17/2006 |
| 7118345 | Fan blade An impeller is applied to a centrifugal fan and includes fan blades and a hub. Each fan blade includes a first portion and a second portion. The first portion is located relatively close to the hub and the first portion is coupled to the second portion. The first po... | 10/10/2006 |
| 7112035 | Delivery system In known delivery systems, a pump chamber and a revolving impeller in the pump chamber rotating about a pump axis, in which protuberances are provided inside the pump chamber on predetermined end walls, it is disadvantageous that the protuberances very and are compl... | 09/26/2006 |
