| Patents for H02K 49 - Dynamo-electric clutches; Dynamo-electric brakes (3,406) |
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| 12/07/2004 | CA2224913C Eddy current apparatus |
| 12/02/2004 | US20040238191 Magnetic impact tool |
| 12/02/2004 | DE10322465A1 Separation/isolation sleeve or bush e.g. for magnetic coupling drives or canned motors, uses sleeve designed as tube section of wound, fiber-reinforced multilayer tube |
| 12/02/2004 | DE10321767A1 Car retarding system, has clutch and stepless gearbox system with several transmission rings, supported in adjustable energy retaining ring and form lamination block |
| 12/01/2004 | CN1551463A Electric driving apparatus |
| 11/25/2004 | WO2004102778A1 Eddy-current reduction gear |
| 11/25/2004 | WO2004102030A1 Magnetic brake for vehicles |
| 11/25/2004 | US20040232702 Ring type starter/generator |
| 11/25/2004 | DE10318696A1 Antriebsstrang mit variabler Eingangs- und konstanter Ausgangsdrehzahl Powertrain with variable input and constant output speed |
| 11/24/2004 | EP1480321A1 Electric driving apparatus |
| 11/24/2004 | EP1480320A1 Eddy current speed reducer |
| 11/24/2004 | EP1478900A2 Gear mechanism and a rotary encoder equipped with this gear mechanism |
| 11/24/2004 | CN1548789A Flexible and rigid double-state coupling and application apparatus |
| 11/23/2004 | US6820728 Integrated retarder and accessory device |
| 11/18/2004 | WO2004091080A3 Electromagnetic retarder for a vehicle |
| 11/17/2004 | EP1477382A2 Electrically operable magnetic rail brake device |
| 11/10/2004 | CN2655510Y Electric vortex speed reducer rotor |
| 11/04/2004 | WO2004094872A1 Drive train having variable input speed and constant output speed |
| 11/03/2004 | CN1543700A Self-unloading magnetic coupler |
| 11/02/2004 | US6811009 Magnet type fan clutch apparatus |
| 10/28/2004 | WO2004093306A2 Motion control using electromagnetic forces |
| 10/28/2004 | WO2004093297A1 Rotating apparatus using a magnet and rotating decoration employing the same |
| 10/27/2004 | EP0960289B1 Integral steel-aluminum ring for eddy current activated friction clutch |
| 10/27/2004 | CN1172811C Electromagnetically damping stepless speed variator |
| 10/21/2004 | WO2004091081A1 Electromagnetic retarder for a vehicle comprising an alternator |
| 10/21/2004 | WO2004091080A2 Electromagnetic retarder for a vehicle |
| 10/20/2004 | CN1172426C Multi-layer magnetic engaged wheel and magnetic gearing device |
| 10/19/2004 | US6806610 Magnetic motor with movable rotor and drive magnets |
| 10/13/2004 | CN2648692Y Electric eddy current type retarder |
| 09/30/2004 | WO2004082764A1 Rapid excape system for buildings |
| 09/30/2004 | DE202004011085U1 Kraftübertragung Power transmission |
| 09/29/2004 | EP1462219A1 Magnetic impact tool |
| 09/29/2004 | EP1461186A2 Magnetic impact device and method for magnetically generating impact motion |
| 09/23/2004 | US20040183387 Permanent electro magnetic motor |
| 09/23/2004 | US20040182646 Rapid escape system for buildings |
| 09/22/2004 | CN1531175A Apparatus for increasing torque force by magnetic force |
| 09/21/2004 | US6794781 Compact electrical machine |
| 09/21/2004 | US6794778 Braking system for powered window covering |
| 09/21/2004 | US6793167 Food processing apparatus including magnetic drive |
| 09/16/2004 | US20040178689 Apparatus for increasing turning force using magnetic force |
| 09/14/2004 | US6791216 Exciter for superconducting rotating machinery |
| 09/14/2004 | US6789442 Gear stage assembly with preload torque |
| 09/10/2004 | CA2426825A1 Apparatus for increasing turning force using magnetic force |
| 08/26/2004 | WO2004011210A3 Apparatus and method for cutting sheet-type work material using a blade reciprocated via a tuned resonator |
| 08/18/2004 | EP1446315A1 Popular amusement device with switchable eddy-current brake |
| 08/18/2004 | EP1386386B1 Downhole torque-generating and generator combination apparatus |
| 08/18/2004 | EP1117550A4 Magnetic clutch method and apparatus for driving a vehicle air conditioner |
| 08/17/2004 | US6778052 Contactless magnetic spiral gear and variants thereof |
| 08/12/2004 | WO2004067997A2 Torque converter and system using the same |
| 08/12/2004 | US20040155538 Exciter for superconducting rotating machinery |
| 08/12/2004 | CA2512452A1 Torque converter and system using the same |
| 08/05/2004 | US20040150279 Torque converter and system using the same |
| 07/29/2004 | WO2004012910A3 Magnetic impact device and method for magnetically generating impact motion |
| 07/29/2004 | US20040144611 Eddy current clutch as well as fan coupling with eddy current clutch |
| 07/29/2004 | US20040144570 Downhole torque-generating and generator combination apparatus |
| 07/22/2004 | US20040140726 Downhole torque generator |
| 07/15/2004 | DE10303183A1 Eddy current coupling for internal combustion engine fan coupling has second coupling element on which magnets are arranged to move past eddy current section when elements move relative to each other |
| 07/15/2004 | DE10143878B4 Linearstellglied Linear actuator |
| 07/14/2004 | CN2626102Y Magnetic hysteresis type cable drum |
| 07/13/2004 | US6762524 Magnetic drive system for a vehicle differential |
| 07/13/2004 | US6761254 Brake assembly, in particular for cyclists' training device |
| 07/13/2004 | US6761143 Coupling structure for expansion unit output shaft and driven-side transmission shaft |
| 07/08/2004 | US20040130422 Mechanical translator with ultra low friction ferrofluid bearings |
| 07/08/2004 | US20040130228 Magnetic induction coupler |
| 07/01/2004 | DE19741553B4 Wirbelstromkupplung Eddy current clutch |
| 06/30/2004 | EP1434330A1 RING MODE STARTER/GENERATOR |
| 06/29/2004 | US6756870 Composite magnet of electromagnet and permanent magnet, and eddy current retarder |
| 06/10/2004 | US20040108781 Compact electrical machine |
| 05/27/2004 | WO2004043213A1 Food processing apparatus including magnetic drive |
| 05/27/2004 | US20040099107 Apparatus and method for cutting sheet-type work material using a blade reciprocated via a tuned resonator |
| 05/19/2004 | DE202004003035U1 Hysteresis unit comprises a housing which consists of a plastic material and accommodates a magnet carrier incorporated by an injection molding process |
| 05/19/2004 | DE10343119A1 Erhöhtes Verzögerungsdrehmoment in Retarder-Bremssystem durch die Verwendung einer leitfähigen Schicht Increased retarding torque in retarder braking system by the use of a conductive layer |
| 05/18/2004 | US6737757 Wind power plant and method for operating it |
| 05/06/2004 | EP1334001A4 Eddy current brake system with dual use conductor fin |
| 05/05/2004 | CN1494089A Controlling rod driving mechanism |
| 04/29/2004 | US20040080227 Electrical generating system having a magnetic coupling |
| 04/28/2004 | CN1147868C Control rod drive mechanism |
| 04/27/2004 | US6725982 Eddy current braking apparatus |
| 04/13/2004 | US6719655 Electrodynamic drive system |
| 04/08/2004 | WO2004010567A3 Magnetic motor with diamagnetic and non-magnetic mask |
| 04/08/2004 | US20040066107 Magnetic coupling using halbach type magnet array |
| 04/07/2004 | EP1405392A1 Self-unloading magnetic coupler |
| 04/07/2004 | CN1144938C Magnetic force driving pump of internal combustion engine for vehicle |
| 04/01/2004 | US20040061395 Mechanical drive system operating by magnetic force |
| 03/18/2004 | US20040051414 Increased torque in retarder brake system through use of conductive layer |
| 03/18/2004 | US20040051413 Kinetic energy transmission by using an electromagnetic clutch |
| 03/11/2004 | WO2003098785A3 Electromagnetic retarder for a vehicle |
| 03/11/2004 | US20040046468 Method and device for transmitting force magnetically |
| 03/11/2004 | DE10164784A1 SRF, selbstreinigender Filter SRF, self-cleaning filter |
| 03/04/2004 | US20040041479 Drive apparatus |
| 03/03/2004 | EP0925080B1 Intracardiac blood pump |
| 03/02/2004 | US6700265 Eddy current retarder |
| 03/02/2004 | US6700264 Pump driving system of induction type |
| 03/02/2004 | US6698554 Eddy current brake system |
| 02/26/2004 | WO2004017502A1 Electromagnetic retarder for a vehicle provided with a speed increasing unit |
| 02/26/2004 | US20040036375 Ventilation device with electromagnetic coupling |
| 02/26/2004 | DE10237686A1 Torque converter has magnetically-operated reciprocating pistons for transmitting rotation of input shaft drive disc to tumble disc secured to output shaft |
| 02/25/2004 | CN1140042C Adjustable magnetic coupler |
| 02/24/2004 | US6695070 Magnetic impact device and method for magnetically generating impact motion |
| 02/18/2004 | CN2603680Y 磁力感应耦合机 Magnetic inductive coupling machine |