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| Number | Title | Issue Date |
| 8035259 | Electric motor starting device An electric motor starting device for an electric motor that incorporates air, gas, liquid or electrically actuated engine starter to initiate rotation of an electric motor and its associated driven component. Embodiments of the present invention provide apparatus a... | 10/11/2011 |
| 7675204 | Motor for controlling inverse rotation of rotor Disclosed related to provide a motor reliable as capable of controlling the backward rotation of the rotor R for certain. The motor according to the present invention comprises a stator 2; a rotor R rotated by the interaction with between the stator 2 ... | 03/09/2010 |
| 7649286 | Electric motor starting device An electric motor starting device for an electric motor that incorporates air, gas, liquid or electrically actuated engine starter to initiate rotation of an electric motor and its associated driven component. Embodiments of the present invention provide apparatus a... | 01/19/2010 |
| 7582993 | Motor having reverse rotation preventing unit A motor having a reverse-rotation preventing unit, comprises: a casing; a stator fixedly-coupled to an inside of the casing; a primary rotor rotatably inserted into the stator; a motor shaft coupled to the primary rotor; a secondary rotor having a permanent magnet a... | 09/01/2009 |
| 7276805 | Manual-powered generator and assemblies therewith The invention provides a manually-powered electrical assembly. In one aspect, the manually-powered electrical assembly can be a light assembly that comprises a light source, an electrical generator, and a manual actuator assembly. The electrical generator is electri... | 10/02/2007 |
| 7249931 | High efficiency air conditioner condenser fan with performance enhancements Twisted blades for outdoor air conditioner condensers and heat pumps that improve airflow efficiency to minimize operating power requirements. The blades can run at approximately 850 rpm to produce approximately 1930 cfm of air flow using approximately 110 Watts of ... | 07/31/2007 |
| 7219775 | Attachment for preventing reverse rotation of a shaft A fan rotor is mounted on a shaft carried on bearings attached to a base plate and there is provided an assembly for preventing reverse rotation of the fan which could damage the motor. A stop plate is mounted on the base adjacent the shaft with an edge adjacent the... | 05/22/2007 |
| 7145280 | Stator for a dynamoelectric machine having a split ferromagnetic core A method and apparatus for production of stator windings for dynamoelectric mechines of different configurations is provided. The windings are preferably formed on a bobbin (10) or similar article, which may then be transferred onto an appropriate carrier suc... | 12/05/2006 |
| 7140475 | Brake A motor brake can be coupled to the rotatable motor drive shaft. The brake includes a shaft-mountable support that rotates uniformly with the drive shaft. One or more brake shoes, which can include flyweights or the like, are hingedly mounted to the support and incl... | 11/28/2006 |
| 7098562 | Ambidextrous electronic window lift motor A motor assembly 30 includes an electric motor 32 having a rotatable shaft 40, the shaft 40 having a worm 38; and a gear unit 33 operatively associated with the motor, the gear unit has first and second opposing ends. The ge... | 08/29/2006 |
| 7044721 | Fan casing with built-in motor poles A casing for a heat-dissipating fan includes a bottom board and a plurality of sidewalls extending from the bottom board. The bottom board and the sidewalls are integrally formed by punching a magnetically conductive plate. The bottom board includes a base on which ... | 05/16/2006 |
| 7015616 | System and method for providing coil retention in the rotor windings of a high speed generator A coil retention system for a rotor of a high speed electrical generator, such as an aircraft generator, that uses compliant material to fill variable dimension voids and/or gaps in the coils wound around the rotor of an electrical machine. During processing of the ... | 03/21/2006 |
| 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 |
| 6316851 | Motor A single-phase motor which includes a rotor magnet alternately magnetized to different poles by dividing it along a circumferential direction and in which a coil is disposed in an axial direction of said rotor magnet. Outer magnetized portions of an outer... | 11/13/2001 |
| 6157105 | Starter A contact shaft moving device that reduces the wearing of a pinion in a ring gear. More specifically, the contact shaft moving device moves a contact shaft in such a direction as to cause a moving contact to be in direct contact with a stationary contact ... | 12/05/2000 |
| 6060803 | Starter with multiple lever springs A starter comprising: a motor 24, a clutch 21, which is connected to the motor 24; a pinion gear 22, which is connected to the clutch 21 and engages and disengages with the ring gear of the engine; an electromagnetic switch 2, which switches on and off an... | 05/09/2000 |
| 5828144 | Electromagnetic actuator An electromagnetic actuator includes a housing made of a magnetic material, a coil disposed in the housing, a stationary core surrounded by the coil and secured to the housing, a movable core adapted to be attracted to the stationary core by excitation of... | 10/27/1998 |
| 5753984 | Apparatus and method for starting a single-phase variable reluctance motor A single-phase switched reluctance motor is disclosed. The motor includes a stator having a plurality of projecting poles and a rotor rotatably disposed adjacent to the stator. The stator and rotor poles may be formed from laminations of ferromagnetic mat... | 05/19/1998 |
| 5723923 | Apparatus for providing torque and for storing momentum energy A torque reaction/momentum wheel device for attitude control of a body, such as a spacecraft, having a motor driven flywheel with the flywheel at one end of a shaft and cantilevered with respect to at least two bearings which support the shaft which is co... | 03/03/1998 |
| 5718294 | Fire suppression or explosion protection system having a manual actuator for an electrically responsive initiator or gas-generating cartridge activator A fire suppression or explosion protection system is having a manual actuator for an electrically responsive initiator or gas-generating cartridge activator. The manually operated actuator (10) for triggering the electrically responsive initiator (26) or ... | 02/17/1998 |
| 5684345 | Single phase induction motor as the drive of a high pressure cleaning device A single phase induction motor for driving a high pressure cleaning device. The induction motor has a stator (1) with a drive shaft (2) and a rotor (4) which is located on the shaft (2). High pressure pump (3) of the high pressure cleaning device is drive... | 11/04/1997 |
| 5319991 | Motor coupling with angular compliance A reversible drive system is provided that is particularly adaptable to low-power drives in which precision mechanical control must be obtained with the lowest possible cost and the highest reliability. The drive is described as incorporated in a lead scr... | 06/14/1994 |
| 5055727 | Rotary drive mechanism A rotary drive mechanism includes a rotary solenoid having a stator and multi-poled rotor. A moving member rotates with the rotor and is biased by a biasing device. The biasing device causes a further rotational movement after rotation by the rotary solen... | 10/08/1991 |
| 4893038 | Device for limiting direction of rotation of synchronous motor A device for limiting the direction of rotation of a synchronous motor includes a gear connectable to a rotor of the motor for being rotated. A shaft rotatably supports the gear in such a manner that the gear is movable along the axis of the shaft. A pair... | 01/09/1990 |
| 4818911 | Stator of electric motor A stator of an electric motor provides pole retaining portions which retain the poles therein and are radially project at their end portions towards the outer periphery in a ring shape, whereby winding operations around the outer surface of the pole retai... | 04/04/1989 |
| 4812691 | Device for improving the stability of rotation of the rotor of a single-phase synchronous motor The invention relates to a device for improving the stability of rotation of the rotor of a single-phase synchronous motor mounted in an apparatus housing. The motor exhibits an average motor torque on which strong alternating torques are superimposed and... | 03/14/1989 |
| 4800308 | Motorized control unit with torsional elastomeric bias A motorized control for driving a rotatable shaft-actuated device, such as a valve, comprising a base plate, a top housing, a work plate intermediate the base plate and the top housing and a plurality of stiff legs extending between the base plate and the... | 01/24/1989 |
| 4791327 | Drive mechanism for a domestic vibration apparatus A drive mechanism for a domestic vibration-type apparatus is provided, in which the rotor shaft (19) of a single-phase synchronous motor drives a cam-and-follower mechanism which converts the rotary motion of the rotor into a vibratory motion, the rotor a... | 12/13/1988 |
| 4760297 | Small appliance driven by unidirectional single-phase synchronous motor A small domestic appliance is driven by means of a single-phase synchronous motor (2) whose drive shaft (5) drives a load (9), the work function being independent of the direction of rotation of the motor and the operating noise and vibrations produced by... | 07/26/1988 |
| 4758751 | Thin type DC brushless motor A thin type DC brushless motor comprises a permanent magnet rotor, a stator core which is arranged concentrically with the rotor, and stator coils which are wound on the stator core. The stator core is so configured as to include a ring-shaped core portio... | 07/19/1988 |
| 4740733 | Autosynchronous motor comprising a device for determining the position of the rotor relative to the stator, and method of starting such motor An autosynchronous motor comprises a control and power circuit for the windings of a stator generating a rotating field the angular direction of which is a function of the magnetizing direction of the permanent magnet of the rotor, and to a positioning de... | 04/26/1988 |
| 4728832 | Alternating current motor with directional rotation reliability A bi-directional alternating current permanent magnet motor is disclosed that is operated with a rotational restraint that insures proper directional rotation of a load. The motor output shaft is loosly coupled to a pinion gear. In the event that the moto... | 03/01/1988 |
| 4716325 | Disengageable one-way mechanism for synchronous motors A mechanism prevents the start-up of a synchronous a.c. motor in other than a desired direction. The mechanism includes a flexible arm having a finger that will engage a radially projecting abutment on the motor shaft. The finger blocks rotation of the sh... | 12/29/1987 |
| 4686398 | One-phase stepping motor The present invention is a one-phase stepping motor having a predetermined direction of rotation. The motor comprises a rotor having 2p permanently magnetized poles on its outer surface. The rotor is surrounded by a coil, which when energized forms the ma... | 08/11/1987 |
| 4656376 | Motor-compressor unit with offset starting torque A motor-compressor unit of the type in which a compressor piston is driveable by the eccentric of a motor shaft of a two pole D.C. motor. The starting characteristics of the unit are improved by off-setting phase-wise the torque developed by the motor fro... | 04/07/1987 |
| 4647801 | Electric motor back-stopping device A back-stopping device rotor assembly is coupled to a motor shaft to rotate therewith and include a pair of L-shaped flyweights pivotably mounted to a channel crossbar, on respective sides of a motor shaft, which crossbar rotates at right angles to the sh... | 03/03/1987 |
| 4636676 | Single-phase synchronous motor with two-pole permanent-magnet rotor A single-phase synchronous motor with a two-pole permanent-magnet rotor of a magnet material having a remanence Br, a specific density .rho., a rotor diameter d, a resulting detent torque of an amplitude Mk1, and a mass moment of ine... | 01/13/1987 |
| 4532444 | Rotational restriction lock for the rotor of a synchronous motor A rotational restriction lock is formed as a one-piece restricting element which is resiliently mounted on a rotor shaft and has a hub which is always resiliently driven in rotation by the rotor throughout a small angle, spring arms which transmit the rot... | 07/30/1985 |
| 4532460 | Pre-start rotor positioner for an electric vehicle A drivetrain (48) for an electric passenger vehicle (10) includes a battery (40) for energizing a single-phase A.C. traction motor (18) which drives a ground engaging wheel (12) through a multi-speed transaxle (20). The motor is characterized by an extern... | 07/30/1985 |
| 4527671 | Rotary direction regulator for synchronous electric motor A rotary direction regulating device for a synchronous electric motor. A plate is disposed on the rotor shaft which rotates with the rotor. A stopper is supported for axial movement in an eccentric axial hole through the plate. At opposite axial sides of ... | 07/09/1985 |
