| Patents for H02K 27 - Ac commutator motors or generators having mechanical commutator (267) |
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| 04/30/2008 | CN100385789C System for controlling rotary device |
| 04/17/2008 | WO2008045335A2 Electricity generating assembly |
| 04/03/2008 | DE102006040262B3 Electrical supply arrangement for rotor of e.g. slip ring motor, has current path with dominant Ohmic pre-resistor, whose resistance value is larger than transfer resistor of sliding contact units that are connected to current paths |
| 04/03/2008 | DE102006000472A1 Universal motor for hand guided tool equipment, has rotor, which has armature core with multiple recess, where winding wire is transferred, which formed armature winding, and which is formed as hollow profile wire |
| 02/21/2008 | US20080044308 Gear pump |
| 02/12/2008 | US7330004 Method and apparatus for quiet variable motor speed control |
| 01/29/2008 | US7323841 Method and apparatus for detecting multiple overcurrent thresholds using a single comparator device |
| 12/27/2007 | WO2007044930A3 Control and protection methodologies for a motor control module |
| 12/21/2007 | WO2007146422A2 Electric machinery laminated cores with insulating laminations |
| 11/14/2007 | EP1193843B1 Commutator motor |
| 11/07/2007 | CN100347932C Electric motor, electric tool having the motor, and electric motor production method |
| 10/25/2007 | US20070247014 Communicator Motor Having Number of Field Winding Groups |
| 10/23/2007 | US7285931 Brushless motor commutation and control |
| 10/23/2007 | US7285929 Brushless motor commutation and control |
| 10/16/2007 | US7282831 Generator in a wheel of a bicycle with collective multiple magnetic poles |
| 10/10/2007 | CN100342635C One drag two-N micromotor intelligent circuit |
| 09/13/2007 | DE102006011246A1 Electromechanical turning machine e.g. rotary drive, for use in e.g. industrial automation, has gear stage converting rotary movement of rotor relative to inner and outer rings into relative rotation of rings relative to each other |
| 09/11/2007 | US7268507 Motor controller |
| 09/05/2007 | CN200944483Y D.C. motor with novel carbon brush device |
| 07/26/2007 | US20070170807 Commutator, direct current motor, and manufacturing method of commutator |
| 07/05/2007 | US20070152532 Electrical machine with commutator rotor |
| 07/05/2007 | US20070152531 Motor, commutator, short-circuit member, and a method for manufacturing the commutator |
| 05/30/2007 | CN2907060Y Energy-saving device for three-phase AC motor |
| 05/15/2007 | US7218120 Fault detection circuit for a driver circuit |
| 05/03/2007 | US20070096582 Commutator and armature |
| 04/19/2007 | US20070085438 DC rotary electric machine having balance winding for reducing variations in magnetizing force between respective field magnet poles |
| 04/18/2007 | CN1950993A Commutator motor having a number of field winding groups |
| 03/29/2007 | US20070069603 Short-circuiting member, commutator, and method of manufacturing short-circuiting member |
| 03/13/2007 | US7190129 System and method for drift compensation when using pulse count controlled motors |
| 03/01/2007 | US20070046128 Commutator and an armature |
| 02/28/2007 | EP1758229A2 Electric motor |
| 01/24/2007 | EP1745541A1 Commutator motor having a number of field winding groups |
| 01/18/2007 | US20070013254 Rotor of electric rotating machine and method and manufacturing the same |
| 12/28/2006 | US20060290229 Small generator with collective multiple magnetic poles |
| 10/31/2006 | US7129660 Motor-temperature estimation apparatus and motor control apparatus |
| 10/18/2006 | CN2829208Y DC series motor for agricultural machinery |
| 09/20/2006 | CN1836362A Commutator motor and electric power drill |
| 09/12/2006 | US7105969 Two speed electric motor with link wound dual-commutator and dual-armature winding |
| 08/23/2006 | CN1823463A Commutator |
| 07/27/2006 | US20060163966 Rotor of motor |
| 07/04/2006 | US7071657 Method and apparatus for the production of power frequency alternating current directly from the output of a single-pole type generator |
| 06/29/2006 | US20060138985 Rotation drive device and rotation drive method |
| 06/27/2006 | US7067999 Rotation control device of working machine |
| 04/25/2006 | US7034480 Method for eliminating fuel use during dynamic braking |
| 02/12/2006 | CA2476167A1 Fuel flexible internal explosion gun-engine that converts completely energy of fuel into work or electricity or both |
| 12/22/2005 | US20050281146 Magnetic actuator |
| 12/15/2005 | DE102004021661A1 Kommutatormotor mit mehreren Feldwicklungsgruppen Commutator with a plurality of field winding groups |
| 12/01/2005 | US20050264125 Rotor of motor |
| 11/17/2005 | WO2005109611A1 Commutator motor having a number of field winding groups |
| 11/16/2005 | EP1135852A4 A system for controlling a rotary device |
| 10/13/2005 | US20050225198 Two speed electric motor with link wound dual-commutator and dual-armature winding |
| 10/06/2005 | US20050218904 Fault detection circuit for a driver circuit |
| 09/29/2005 | DE102005004756A1 Elektromotor, das den Motor aufweisendes, elektrisches Werkzeug, und Verfahren zur Herstellung eines Elektromotors Electric motor, the engine-having electric tool, and method for manufacturing an electric motor |
| 08/10/2005 | CN1652433A Electric motor, electric tool having the motor, and electric motor production method |
| 08/04/2005 | US20050168095 Electric motor, electric tool having the motor, and electric motor production method |
| 07/14/2005 | DE10360007A1 Motor e.g. DC motor, rotor winding method, involves winding coils in rotor armature slots in form of H-windings, such that number of coils in odd numbered slots is different from that of number of coils in even numbered slots |
| 02/24/2005 | WO2005018074A1 Commutator motor and electric power drill |
| 10/28/2004 | WO2004091957A1 Electric motor |
| 10/27/2004 | CN1173453C Synchronous machine with rotating brushes |
| 09/15/2004 | EP1279221A4 Universal frequency electrical generator |
| 05/18/2004 | US6737779 Commutator motor |
| 05/05/2004 | CN1494202A One drag two-N micromotor intelligent circuit |
| 04/14/2004 | EP1116320B1 A synchronous machine with rotating brushes |
| 04/08/2004 | WO2004030203A1 Power generation device |
| 02/25/2004 | CN1477915A Device for supplying power to light source and its method |
| 12/31/2003 | WO2004001950A1 Motor with dynamic current draw |
| 12/25/2003 | US20030234627 Motor with dynamic current draw |
| 12/17/2003 | EP1372246A2 Apparatus and method of powering light source |
| 12/13/2003 | CA2423202A1 Apparatus and method of powering light source |
| 10/22/2003 | CN2582264Y Mechanism for controlling forward/backward rotating for rubber rolling machine |
| 10/07/2003 | US6630806 System for controlling a rotary device |
| 10/01/2003 | CN1446396A Universal frequency electrical generator |
| 09/09/2003 | US6617737 Apparatus and method of powering light source |
| 07/08/2003 | US6590298 Electrical power generation unit for welding including electromechanical feedback mode regulation |
| 04/17/2003 | US20030071531 Electric energy-conversion machines with stator windings encircling the rotor |
| 03/27/2003 | US20030057788 Commutator motor |
| 01/29/2003 | EP1279221A1 Universal frequency electrical generator |
| 08/22/2002 | WO2002065619A1 Engine driven generator |
| 08/21/2002 | EP1232885A2 Generator for electrically powered refrigeration unit |
| 08/15/2002 | US20020108389 Generator with an axial air gap design for electrically powered trailer refrigeration unit |
| 05/21/2002 | US6392371 Universal frequency electrical generator |
| 04/03/2002 | EP1193843A1 Commutator motor |
| 03/05/2002 | US6353297 Series motor |
| 01/31/2002 | WO2001082453A3 Electric motor assembly |
| 01/09/2002 | CN1330807A System for controlling rotary device |
| 01/02/2002 | EP1116320A4 A synchronous machine with rotating brushes |
| 12/12/2001 | CN1326605A Synchronous machine with rotating brushes |
| 11/27/2001 | US6323573 High-efficiency inductor-alternator |
| 11/01/2001 | WO2001082453A2 Electric motor assembly |
| 10/24/2001 | CN1318894A Energy-saving motor |
| 10/11/2001 | WO2001076058A1 Universal frequency electrical generator |
| 09/26/2001 | EP1135852A1 A system for controlling a rotary device |
| 09/20/2001 | WO2001069763A1 Commutator motor |
| 07/18/2001 | EP1116320A1 A synchronous machine with rotating brushes |
| 02/28/2001 | EP1078443A1 High-efficiency inductor-alternator |
| 12/20/2000 | CN2411615Y Flexible inserted motor energy-saving device |
| 09/12/2000 | US6118202 High-efficiency inductor-alternator |
| 08/31/2000 | DE19907852A1 Generator system for vehicle, has generators driven by drive unit that can be operated at different revolution rates, and different transmission ratios of at least two generators with respect to drive unit are selected |
| 07/11/2000 | US6087753 High-efficiency inductor-alternator |
| 06/28/2000 | EP1014543A2 Series motor with commutator |