Famous Patents
The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8129873 | Stator coil coolant flow reduction monitoring A coolant flow reduction monitoring system for a rotary electric machine having stator coils within a plurality of slots of a stator thereof is provided. The stator coils are cooled by a coolant flowing in a plurality of passages provided in the stator coils. The sy... | 03/06/2012 |
| 8115351 | Hybrid transmission high voltage connector and terminal block cooling system and method A cooling system for an electrically variable transmission includes an electric motor having a plurality of connectors. The plurality of connectors are each assembled within a plurality of connector openings in a terminal block. Fluid from within a passageway is sup... | 02/14/2012 |
| 7816823 | Cooling device of electric motor for vehicle A cooling device of an electric motor for a vehicle for receiving cooling air into the electric motor through a suction port according to the rotation of a rotor shaft on which a rotor core, which is disposed opposite to a stator core, is installed. The cooling devi... | 10/19/2010 |
| 7755230 | Rotary electric machine having cooling device and electric generating system including the machine A rotary electric machine which is smoothly operated with high efficiency by adequately controlling the cooling gas flow as needed to keep the highest temperature inside the rotary electric machine below a predetermined limit. The rotary electric machine includes a ... | 07/13/2010 |
| 7476992 | Air-cooled electric motor An electric motor (10) wherein the housing (12) comprises a sleeve (42) having a vent opening (110) extending therethrough. The motor cover (22) has a diaphragming portion (140) overlaying the vent opening (110). The ... | 01/13/2009 |
| 7397154 | Spray cooled motor system A spray cooled motor system with a motor housing with an interior and an exterior, a stator mounted within the interior of the motor housing, a rotor mounted within the interior of the motor housing, a coil winding mounted within the interior of the motor housing, a... | 07/08/2008 |
| 7310852 | Valve assembly The invention relates to a valve assembly for use in connection with carpet cleaning extraction machines and similar extraction cleaning devices. The invention allows the intake of liquid and the mixing of different liquids in a mixing chamber, such as clean water w... | 12/25/2007 |
| 7302947 | Cutting machine with environment control arrangement A cutting machine includes a cutting supporting frame, a cutting head arrangement and a motor air flow arrangement which includes a driving motor to drive a cutting blade to rotate, a motor case defining a motor cavity within an open end inlet end, an open outlet en... | 12/04/2007 |
| 7288864 | System and method for cooling motors of a lithographic tool A system and method of cooling motors of a lithographic tool. The system includes a temperature-adjusting device which adjusts the temperature of a heat transfer fluid to a boiling temperature that is substantially equal to the desired motor housing temperature. The... | 10/30/2007 |
| 7273357 | Control device for electric compressor A control device includes a shot-pulse control unit that provides, at a time of starting a synchronous motor, a predetermined current to each phase of a stator of the motor for a short time; a detecting unit that detects a current flowing through each phase when the... | 09/25/2007 |
| 7271515 | Gas-cooled electrical machine with pressure charging A gas-cooled electric machine includes a generator housing, a rotor shaft, at least one axial fan disposed on the rotor shaft inside the generator housing and having a hub, and a pressure boosting apparatus associated with the axial fan and configured to raise an ab... | 09/18/2007 |
| 7265468 | Water repellent motor sleeve A high-speed universal motor running at over 10,000 or even over 20,000 rpm includes a non-rubbing water repellent sleeve that protects the bearings from moisture damage. Rather than having a sliding contact seal that can quickly wear out under such high speeds, the... | 09/04/2007 |
| 7247958 | Dynamo-electric machine The invention prevents a temperature in an end portion of a stator iron core from becoming excessively high due to a heat generated in the end portion of the stator iron core of a turbine generator. In a dynamo-electric machine provided with a stator constituted by ... | 07/24/2007 |
| 7242166 | Electric machine A method and an apparatus are described for monitoring a rotating synchronous electric machine (9), which comprises a rotor winding and a stator having a stator winding. The method comprises the steps of determining the stator winding current, determining the... | 07/10/2007 |
| 7165881 | Methods and apparatus for high-shear mixing and reacting of materials Methods and apparatus for high shear reacting and/or mixing of moving fluid streams of materials employ an interdiffusing and reacting zone formed in the space between two stationary surfaces, the surfaces being spaced apart a maximum distance of the sum of the thic... | 01/23/2007 |
| 7144069 | Vehicle, in particular camper, with a hydraulically actuated roof part A hydraulic actuating device for a roof part which is moveable between a closed position and an open position of a vehicle has a first hydraulic actuator and a second hydraulic actuator, which first and second actuators are designed to drive the moveable roof part i... | 12/05/2006 |
| 7142125 | Fan monitoring for failure prediction A method for monitoring a fan comprises measuring power usage of the fan, determining a derivative of the measured fan power usage, tracking the derivative over time, and predicting impending fan failure based on the tracked fan power usage derivative. ... | 11/28/2006 |
| 7141898 | Gas-cooled generator Gaseous coolant, preferably helium, flows from coolers 12 past the winding overhangs 7 of the stator 3, then through cooling channels in the rotor 1, then into the rotor/stator gap 4, then through cooling ducts in the stator core | 11/28/2006 |
| 7135917 | Left-handed nonlinear transmission line media A left-handed nonlinear transmission line system has multiple nonlinear capacitors connected in series between input and output terminals and multiple inductances connected in parallel between the nonlinear capacitors and a return conductor extending between the inp... | 11/14/2006 |
| 7105959 | Cooling jacket and motor unit with cooling jacket A cooling jacket for an electric motor and a motor unit with a cooling jacket mounted on an electric motor having simple structure and capable of being manufactured with reduced number of processes. A cooling pipe made of copper and the like is bent, and held by pla... | 09/12/2006 |
| 7098360 | Processes employing multiple successive chemical reaction process steps and apparatus therefore The invention provides processes and apparatus for the production of materials requiring a plurality of chemical reaction steps. In the prior art the number of reaction vessels is minimized by performing two or more reactions together in the same vessel. Instead eac... | 08/29/2006 |
| 7071586 | Dynamo-electric machine An electric rotating machine capable of lowering the temperature of a rotor disposed, wherein at least one of closed ventilation loops for cooling is formed, one of the loops constituting a ventilation passage communicating with an exhaust side through a heat source... | 07/04/2006 |
| 7033144 | Cooling fan for a screw compressor drive motor A oil-cooled type screw compressor of the present invention includes a compressor main unit storing a pair of male and female screw rotors driven by a motor and meshing with each other, a cooling fan provided independently to the motor for blowing air toward the mot... | 04/25/2006 |
| 7012347 | Superconducting rotor with cooling system Disclosed herein is a superconducting rotor with a cooling system located inside. The rotor comprises a superconducting field coil for generating a strong magnetic field, a field coil supporting member for supporting the superconducting field coil, and a pulse tube ... | 03/14/2006 |
| 7009318 | Electric refrigeration compressor having a cooling system for an electrical circuit In an electrical compressor having a motor and an electrical circuit integrated with a compression portion, a part of electrical components of the electrical circuit is disposed in spaces between a cylindrical outer surface of a motor housing and an imaginary flat s... | 03/07/2006 |
| 7009317 | Cooling system for an electric motor A cooling system for an electric motor includes a cooling duct formed between a cooling jacket and a separate component surface. The separate component surface may define at least a portion of a wall of the cooling duct. The cooling duct may be configured to direct ... | 03/07/2006 |
| 7002273 | Magnetic bearing A magnetic bearing of a rotor shaft relative to a stator is described, which has the following features: (a) the rotor shaft (1) contains an arrangement of permanent-magnet elements (2) arranged side by side in the re... | 02/21/2006 |
| 6996994 | Vacuum retention method and superconducting machine with vacuum retention A superconducting machine includes a superconductive device and a vacuum enclosure containing and thermally insulating the superconductive device. A cold-trap is configured to condense gases generated within the vacuum enclosure, and a coolant circulation system is ... | 02/14/2006 |
| 6994330 | Process for high shear gas-liquid reactions A reactor produces a gas-in-liquid emulsion for providing increased interfacial contact area between the liquid and the gas for improved reaction of the gas with the liquid, or more rapid solution or reaction of a difficulty to dissolve or immiscible gas in or with ... | 02/07/2006 |
| 6979504 | Fuel cell system automatic power switching method and apparatus A fuel cell system includes a fuel cell stack, a battery, and a control system. A power circuit couples the fuel cell system selectively between the fuel cell stack and the battery. The power circuit includes a battery supply switch responsive to a voltage across th... | 12/27/2005 |
| 6969561 | Fuel cell ambient environment monitoring and control apparatus and method An electrochemical power generation system includes a fuel cell stack having an oxidant delivery system, an oxygen sensor for measuring the oxygen concentration of ambient air in the vicinity of the power generation system, and a hydrogen concentration sensor for me... | 11/29/2005 |
| 6959585 | Skids, modules, and modular system for monitoring hydrogen-cooled generators A modular system for monitoring a hydrogen-cooled generator includes a skid having a platform and an upwardly extending support. The support is attachable to a hydrogen gas purity monitoring module, a generator overheat monitoring module, a hydrogen gas dryer module... | 11/01/2005 |
| 6956308 | Dual flow circulation system for a mover A circulation system (330) for a mover (328) includes a fluid source (360) that directs a first fluid (356) into a first inlet (364A) of the mover (328) and a second fluid (358) into a second inlet (366A) of th... | 10/18/2005 |
| 6953630 | Fuel cell anomaly detection method and apparatus A respective bipolar junction transistor is coupled across pairs of fuel cells in a fuel cell stack to monitor the voltage across each fuel cell pairs for a drop in voltage below a threshold voltage. A respective optoisolator coupled to each of the transistors produ... | 10/11/2005 |
| 6952070 | Capped flat end windings in an electrical machine End windings of the field windings of a generator rotor body are flattened. A cap having a flat undersurface overlies the flattened end windings and an enclosure ring extends about the end windings and cap. Apertures are formed through the cap in communication with ... | 10/04/2005 |
| 6943469 | Supplemented zonal ventilation system for electric generator An electrical generator (80) utilizes supplemental blowers or fans (140) to move additional cooling fluid through coolant flow paths (116, 124) in the generator, thus reducing the internal temperature of the generator. The supplemental blower co... | 09/13/2005 |
| 6943470 | Air gap baffle assembly for gas-cooled turbine generator and method of installing A gas-cooled turbine generator includes a rotor having baffles arranged in rings and defining a plurality of gas cooling zones. A stator core has stator slots in a bore in which the rotor is received. A plurality of air gap baffle assemblies are arranged in segmente... | 09/13/2005 |
| 6938687 | Apparatus for transfer of heat energy between a body surface and heat transfer fluid In apparatus for heat exchange to and from a body surface using a heat transfer liquid a heat exchanger comprises a plurality of elements within a casing connected axially against one another with spacer tube elements. Each element has its periphery spaced from the ... | 09/06/2005 |
| 6927511 | Generator having dual path airflow cooling arrangement and method therefor A generator incorporating a double sided fan operable to generate dual, spaced apart, simultaneous cooling airflows within the generator to more efficiently cool internal components located on opposite sides of the fan. The double sided fan generates a first cooling... | 08/09/2005 |
| 6919656 | Electric asynchronous motor An electric asynchronous motor for driving a shaft, a roll shell or a similar machine element includes an annular rotor and an annular stator, each having an end face at each of their respective ends. The rotor is connected to a motor shaft by way of spokes. A motor... | 07/19/2005 |
