Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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| Number | Title | Issue Date |
| 8134261 | Cooling arrangement for an electrical machine A cooling arrangement is disclosed for an electrical machine in which the main cooling air circulation within the machine is arranged using a centrifugal blower in at least one of the ends of the machine, making the main cooling air circulation flow through at least... | 03/13/2012 |
| 8102086 | Exciter machine comprising an auxiliary exciter machine An exciter machine including an auxiliary exciter machine and a fan is provided. The fan is arranged on one side of the exciter machine and includes a mount ring on the external circumference on which permanent magnets are arranged in order to form an auxiliary roto... | 01/24/2012 |
| 8053939 | Brushless AC generator for vehicle To provide a brushless AC generator for a vehicle, which is capable of improving a cooing performance for an excitation coil and increasing an output of electric power generation with a simple structure. An external fan 11 fixed to a shaft 10 ou... | 11/08/2011 |
| 8049380 | Electric motor An electric motor has a stator and a rotor. The stator has a housing with inlets and outlets. The rotor has a shaft, a rotor core and a commutator. A fan is fixed to the rotor. An end cap is fitted to the housing to close a first end of the housing and support elect... | 11/01/2011 |
| 7977832 | Cooling system for a motor and associated electronics A cooling system is provided for an electric motor having control circuitry and including a motor housing surrounding the motor. The motor drives at least one radial fan at one end thereof for directing airflow through the motor housing across the motor. A fan housi... | 07/12/2011 |
| 7969051 | Forced-fluid flow ventilating system for rotating electrical machines and rotating electrical machine comprising same The invention concerns a ventilation system for a rotary electrical machine of the type comprising a rotor mounted so as to rotate in a stator and a device for cooling by forced flow of a cooling fluid, such as air, provided with at least one fan fixed to the rotor ... | 06/28/2011 |
| 7923871 | Electrical machine The invention relates to an electrical machine (1) having a stator (4) and a rotor (3), with the rotor (3) having a plurality of axially arranged cooling channels (8) and a first (5a) and a second (5b) e... | 04/12/2011 |
| 7834493 | Rotor for vehicle alternator A vehicle alternator is disclosed as having a rotor including magnetic pole pieces, each having claw-like magnetic pole fingers, a field coil wound on boss portions of the magnetic pole pieces, and cooling fans fixedly mounted on the magnetic pole pieces, respective... | 11/16/2010 |
| 7705497 | Power tool cooling A power tool cooling system comprises a cooling fan disposed on a motor in a position between the upper field coil and the lower commutator. A transmission housing encapsulates the transmission mechanism. During operation, the fan is driven by the motor and draws ai... | 04/27/2010 |
| 7615896 | Integrated permanent magnet motor and blower An integrated blower and motor is provided. The integrated blower and motor can include a rotor and a stator, wherein the rotor is disposed with a central bore of the stator. The integrated blower and motor includes a fan, wherein the fan can be attached to the roto... | 11/10/2009 |
| 7598636 | Automotive alternator with cooling fan having projections for preventing foreign particles An alternator of the present invention is mounted on an automotive vehicle to supply electric power to an on-board battery and electric loads. The alternator is composed of a housing, a stator fixedly held in the housing, a rotor rotatably supported in an inner bore... | 10/06/2009 |
| 7541702 | Brushless fan motor A brushless fan motor, in which cooling effect on a stator may be enhanced, is provided. A center through hole is formed in a center of a bottom wall portion of a first brushless fan motor. Vane portions are formed on an inner wall portion of the brushless fan motor... | 06/02/2009 |
| 7518271 | Electric machine with stator cooling teeth An electrical machine, in particular a rotary current generator for motor vehicles, is proposed which has a housing (13) in which a stator (16) is retained, such that a coolant can flow around the outside of the stator (16) from one of its axial... | 04/14/2009 |
| 7443073 | Electric fan An electric fan includes a frame (10) having a central tube (12) extending therefrom, a bearing (30) received in the central tube, a stator (50) mounted around the central tube, and a rotor (70) being rotatably supported by the bea... | 10/28/2008 |
| 7442005 | Fan frame and heat dissipation fan incorporating the fan frame A heat dissipation fan includes a fan frame, a stator mounted to the frame, and a rotor rotatably disposed around the stator. The fan frame includes a bracket, a central tube for positioning the stator, and a supporting member. The supporting member is made of a mat... | 10/28/2008 |
| 7400070 | Rotating electric machine for vehicles A rotating electric machine for vehicles is capable of improving a cooling performance of switching elements forming an inverter module, and small-sizing the entire rotating electric machine. The rotating electric machine includes: a stator; a rotor, a cooling fan; ... | 07/15/2008 |
| 7385322 | Rotor for use in an outer rotor type motor of a drum type washing machine A rotor of an outer rotor type motor is coupled to an outside of a stator, and is provided with a shaft coupler, for being connected with a shaft of a drum, fixed at its center portion by an injected material, and a plurality of radiation holes formed therein contin... | 06/10/2008 |
| 7372180 | Electric motor with an air duct An electric motor includes a stator (3) secured in the motor housing (2), a rotatable rotor (4), a fan impeller (5) arranged on the rotor (4), and an annular air duct (6) arranged between the fan impeller (5) and the ... | 05/13/2008 |
| 7367134 | Dishwasher vent assembly A mechanized vent for a dishwasher employs a vent plate moving about a hinge axis as driven by a cam mechanism at a surface of the vent plate removed from the hinge axis. ... | 05/06/2008 |
| 7368839 | Slip ring end frame The slip ring end (SRE) frame is an SRE frame of popular small dimension designed to allow available larger rectifier assemblies having larger heat sinks to be fitted into the SRE frame, thus providing increased heat dissipation capability. Two flattened frame mount... | 05/06/2008 |
| 7365471 | Internal cooling fan with a non-repeating blade configuration An internal cooling fan assembly for use with a claw-pole segment of a rotor assembly is provided that maximizes air flow while providing a reduced sound signature. The fan assembly includes a base portion that contacts the claw-pole segment when the fan assembly is... | 04/29/2008 |
| 7364411 | Fan impeller and fan motor Small, high-performance centrifugal fan for cooling portable electronic devices. The centrifugal fan motor employs a cantilever-type impeller constituted by an impeller blade unit that includes a lower endwall portion at axial one end, having a wall surface for brea... | 04/29/2008 |
| 7362017 | Motor with integrated drive unit and shared cooling fan An integrated motor and drive assembly includes a motor, a fan, and a drive unit. The motor is responsive to at least one drive signal. The fan is axially aligned with the motor and operable to generate a cooling flow. The drive unit is axially aligned with the fan ... | 04/22/2008 |
| 7358630 | Ventilating device for rotary electrical machine The ventilating device fixed on a rotor of a rotary electrical machine, comprises a first fan (62a) having a radial plate portion (64a), at least one second fan (62b) having a radial plate portion (64b), and me... | 04/15/2008 |
| 7348702 | Apparatus and method for flywheel based cooling In accordance with exemplary embodiments, the present invention provides a transient power source that includes a flywheel that stores kinetic energy. In the event of a loss of main or operating power, the kinetic energy stored in the flywheel is converted into elec... | 03/25/2008 |
| 7347252 | Centrifugal impeller An improved centrifugal impeller having between 20 and 26 rearwardly curved blades blades, a ratio of blade annulus width to wheel radius between 0.31 and 0.37, and an inlet blade angle in the range 32° to 36° and a discharge blade angle in the range 36° to 40°.... | 03/25/2008 |
| 7342333 | Outer rotor type multipolar generator An outer rotor type multi-pole generator includes a stator mounted on a stationary support, and a rotor formed by fixedly attaching a magnet to the inner periphery of a bottomed cylindrical rotor yoke that is coaxially fixed to an end of a drive shaft rotatably supp... | 03/11/2008 |
| 7339294 | Vehicular starting and charging rotary electric machine A vehicular starting and charging rotary electric machine includes a rotor, a stator, brackets, a brush, and a rotation detection sensor. The rotor has a field winding. The stator has a stator winding. The brackets supports the rotor and the stator. One end of the b... | 03/04/2008 |
| 7332838 | Motor-fan assembly and combustion-type power tool employing the same To connect a motor shaft to a fan, a connection rod is used that is symmetrical in shape with respect to a longitudinal axis of the connection rod. The connection rod includes a first part formed with a hole in coaxial with the longitudinal axis, and a second part f... | 02/19/2008 |
| 7320542 | Blender with cooling/muffling functions A blender includes a base frame, a cover for covering the base frame, a muffler housing, a motor, and a fan. The base frame includes a hollow column having a compartment for receiving the motor. Two separating plates extend downward from a bottom end of the base fra... | 01/22/2008 |
| 7315101 | Magnetic bearing apparatus In order to obtain a magnetic bearing apparatus in which a large cooling effect is exerted by a simple configuration, fins 15 which form an air flow in a rearward direction are disposed in a rear portion and outer diameter of a rotary shaft 1, a genera... | 01/01/2008 |
| 7309935 | Fan impeller for electrical machines The present invention relates to a fan wheel (11) for electrical machines, in particular for alternators of motor vehicles, with a fan disk (10) that, on its axially outwardly directed end face, has a number of fan blades (13, 18) distributed ar... | 12/18/2007 |
| 7294980 | Fan control system A fan control system. The system includes a plurality of fans, each having a control device. One of the fans is designated as a master fan and others are served as slave fans according to a specific designation method, wherein the control device of the master fan ac... | 11/13/2007 |
| 7291948 | Alternator with a cooling fan rotated with a rotor An alternator has a rotor having magnetic poles along a circumferential direction and a cooling fan fixed to an end surface of the rotor in an axial direction. The fan has wing portions disposed along the circumferential direction. One wing portion has a fan base ex... | 11/06/2007 |
| 7284854 | Half-jacket eyewear with removable dust shield Disclosed is eyewear that may have a half-jacket frame and a removable dust shield for preventing direct impingement of dust upon a wearer's eye. The eyewear may have a titanium frame and removable lenses free of any attachment structure. The frame may have a lens-r... | 10/23/2007 |
| 7282823 | Self-cooling electric machine An electric machine having a rotor with a ventilation port and a rotor coupling with at least one air disturber. ... | 10/16/2007 |
| 7274121 | Systems and methods for fastening internal cooling fans to claw-pole electro-mechanical machines Methods, systems, and articles of manufacture for fastening internal cooling fans to claw-pole segments are provided. A claw-pole segment suitable for use in a rotor of an electro-mechanical machine is formed. The claw-pole segment may include a base portion, at lea... | 09/25/2007 |
| 7265463 | Rotary electric apparatus with high cooling performance A rotary electric apparatus, such as on-vehicle three-phase AC generator (i.e., alternator) comprises a main rotary unit, a semiconductor power converter, and an air cooling mechanism. The main rotary unit is provided with a rotor and an armature disposed as a stato... | 09/04/2007 |
| 7259486 | Axial fan In an axial fan, a case (40) accommodating the fan motor stator (50) is anchored into a bearing retainer (10), in which ball bearings (20, 21) as a bearing unit are accommodated, along a bulge part (13) formed on the lower end port... | 08/21/2007 |
| 7256520 | Power tool with a self-supporting motor A power tool comprising an electric motor for driving a tool is disclosed. The electric motor comprises a shaft, an armature, and a brush collector. The stator is configured as a self-supporting unit comprising first and second supporting parts. One of the supportin... | 08/14/2007 |
