| Patents for H02K 49 - Dynamo-electric clutches; Dynamo-electric brakes (3,406) |
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| 07/31/1991 | CN1053519A Permanent-magnet stepless variable-speed driving device |
| 07/16/1991 | CA1286348C Low power electric speed reducer, particularly for a home trainer |
| 07/10/1991 | EP0436423A1 Synthesis process for Ziegler type solid catalysts or for solid compositions of such catalytic solids, using a unique pivotable polyfunctional reactor and a magnetically driven agitator, usable among others, in such a reactor |
| 06/27/1991 | WO1991009444A1 Method and device for magnetic conversion of movements of controlling element |
| 06/26/1991 | EP0433370A1 Torque coupling device |
| 06/23/1991 | CA2032995A1 Synthesis process for ziegler catalytic solids or solid components from such catalytic solids carried out inside of a multi purpose pivoting reactor, and entraining stirring rod usable in such a reactor, among other |
| 06/20/1991 | DE3941444A1 Permanent-magnet drive for pump, stirrer on tap - is encased in splint bowl of carbon fibre or aramide reinforced plastic with carborundum bearing rings |
| 06/19/1991 | CN2079386U Electromagnetic vortex braking device |
| 06/11/1991 | US5023499 Vehicle |
| 06/06/1991 | DE4026251A1 Auxiliary eddy-current braking system for motor vehicle - incorporates generator whose excitation windings rotate at distance from retarder with fixed brushes contacting slip-rings |
| 06/04/1991 | US5021048 Blood pump drive system |
| 05/23/1991 | DE3938575A1 Protection device for permanent-magnet clutch - has concentric brake brought into play by trip devices in event of irregular or eccentric rotation of driving element |
| 05/21/1991 | US5017103 Centrifugal blood pump and magnetic coupling |
| 05/21/1991 | US5017102 Magnetically coupled pump and nuclear reactor incorporating said pump |
| 05/07/1991 | US5013949 Magnetic transmission |
| 05/02/1991 | EP0425338A1 Transmission for vehicles with electric retarders |
| 04/30/1991 | US5012060 Permanent magnet thermal generator |
| 04/18/1991 | CA2027631A1 Transmissions of vehicles equipped with electric retarders |
| 04/16/1991 | CA1283157C Magnetically coupled pump |
| 03/13/1991 | EP0416413A1 Eddy current type brake system |
| 03/12/1991 | US4998863 Magnetic pump drive |
| 03/12/1991 | CA1281357C Armature rotors of electromagnetic brakes |
| 03/06/1991 | EP0415309A2 Eddy current type brake system |
| 03/06/1991 | EP0415308A2 Eddy current type brake system |
| 02/27/1991 | EP0221107B1 Rotor drive for medical disposables |
| 02/21/1991 | WO1991002399A1 Variable reluctance torque coupler |
| 01/16/1991 | EP0408093A1 Improved magnetic coupling for motion transmission through walls of closed containers |
| 01/09/1991 | EP0406470A1 Stator for an eddy current brake |
| 01/02/1991 | EP0406110A1 Transmission for vehicles with electromagnetic retarders |
| 01/01/1991 | US4982127 Armature rotors for electromagnetic retarders |
| 12/27/1990 | EP0404048A1 Rotor of eddy current type retarder |
| 12/27/1990 | EP0403714A1 Vehicle transmission with electric retarders |
| 12/18/1990 | CA1278012C Armature rotors for electromagnetic retarders |
| 12/16/1990 | CA2019037A1 Vehicle transmissions equipped with electric retarders |
| 12/12/1990 | CN1010824B Non-contacting linear drive |
| 11/28/1990 | EP0399084A1 Rotor drive for an eddy current retarder |
| 11/27/1990 | US4973231 Submersible pump |
| 11/22/1990 | EP0398175A1 Magnetically coupled pump |
| 11/07/1990 | EP0236504B1 Magnetic clutch |
| 10/16/1990 | US4962583 Tunnel type or dragon-gate type processing system assembled with selected elements and its related interface means |
| 09/27/1990 | DE3913357C1 Moving magnet to-and-fro - applying alternating magnetic field from permanent magnets moved in push-pull |
| 09/26/1990 | CN1045669A Transmission mechanism with magnetic energy variable-moment |
| 09/25/1990 | US4959568 Dynamically tunable resonant device with electric control |
| 08/30/1990 | DE3908234A1 Supplementary brake device for vehicles |
| 08/30/1990 | DE3905419A1 Reducing dead spaces in pumps - involves forming feed screws in rotors to circulate fluid |
| 08/29/1990 | CN2061348U Dry single chip type electromagnetic brake |
| 08/28/1990 | US4952429 Separating pot for glandless electrical or magnetic drive assemblies |
| 07/25/1990 | EP0379227A2 Method of obtaining optimum load value for a user of an exercise device |
| 07/10/1990 | CA1271507A1 Armature rotors for electromagnetic retarders |
| 06/26/1990 | US4937483 Eddy-current brake |
| 06/13/1990 | EP0372838A2 Low loss magnetic drive system |
| 06/07/1990 | DE3841012A1 Magnetic clutch for underground mining |
| 06/07/1990 | DE3841011A1 Method and device for contactless movement of bodies |
| 05/22/1990 | US4927337 Magnetically driven pump |
| 05/09/1990 | EP0367387A2 Eddy current retarder |
| 04/19/1990 | DE3835176A1 Electromagnetic braking device, especially for domestic sports apparatuses or medical training apparatuses |
| 03/22/1990 | WO1990003062A1 Torque coupling device |
| 03/22/1990 | DE3922426A1 Magnetic coupling for rotary process pumps - has isolating bush contacting process medium and other side contacting atmos., and impeller and rotor |
| 02/28/1990 | EP0356145A2 Er fluid force transmission and conversion device with magnetic coupling |
| 02/22/1990 | DE3828110A1 Eddy-current coupling |
| 02/07/1990 | EP0353346A2 Gab-pot for glandless electric or magnetic drive assemblies |
| 01/30/1990 | US4896754 Electrorheological fluid force transmission and conversion device |
| 01/23/1990 | US4896064 Low loss magnetic drive system |
| 01/02/1990 | US4891077 Method of making an electromagnetic coupling disc |
| 01/02/1990 | US4890988 Canned motor pump |
| 12/27/1989 | EP0199639B1 Induced rotors of electromagnetic brakes |
| 12/20/1989 | CN2049838U Eddy coupling motor device |
| 11/21/1989 | CA1263134A1 High sensitivity magnetic actuator |
| 11/15/1989 | EP0341308A1 Eddy current brake |
| 11/09/1989 | DE3814455A1 Device for power transmission |
| 11/02/1989 | EP0340141A1 Electrical brake mechanism for heavy vehicles |
| 10/24/1989 | US4876471 Magnetic drive coupler with constant torque independent of output slippage |
| 10/24/1989 | CA1262454A1 Deep-borehole drilling device |
| 09/27/1989 | EP0334646A1 Hysteresis magnet coupling for roots type pumps |
| 09/26/1989 | US4869654 Magnetic pump drive |
| 09/26/1989 | CA1261383A1 Eddy current retarders |
| 09/19/1989 | CA1259502A1 Devices for imparting rotary motion |
| 09/14/1989 | DE3807083A1 Magnetic device for transmitting torques |
| 09/07/1989 | DE3905216A1 Electrically controllable hysteresis coupling |
| 09/06/1989 | EP0331559A1 Configuration set of an electromagnetic brake and its supplying means |
| 09/05/1989 | US4864173 Assembly formed by an electromagnetic retarder and its electric supply means |
| 09/05/1989 | US4864172 Method and apparatus for cooling an eddy current powder absorption unit |
| 08/31/1989 | DE3805322A1 Magnetic device for transmitting torques |
| 08/30/1989 | EP0330562A1 Rotating armatures of electromagnetic retarders |
| 08/24/1989 | DE3804125A1 Supercharged internal-combustion engine |
| 08/23/1989 | EP0329471A2 Rotary actuator for variable damping force shock absorber |
| 08/15/1989 | US4857785 Torque coupling device |
| 08/08/1989 | US4854823 Leak indicating device for centrifugal pump |
| 08/01/1989 | US4853574 Armature rotors of electromagnetic retarders |
| 08/01/1989 | US4853573 Eddy current brake assembly |
| 07/25/1989 | US4850818 Corrosion-resistant magnet pump |
| 07/11/1989 | CA1257320A1 Electric retarders |
| 07/06/1989 | DE3744101A1 Ceramic sliding partners |
| 06/13/1989 | US4838763 Canned motor pump |
| 06/07/1989 | EP0319335A2 Inductive torque transmitter with stationary field winding |
| 06/06/1989 | US4836826 Magnetic drive coupling |
| 06/01/1989 | WO1989005055A1 Eddy current brake |
| 06/01/1989 | DE3838946A1 Multipart-coupled magnetically driven pump |
| 05/30/1989 | US4834628 Rotor-magnet unit |
| 05/23/1989 | CA1254606A1 Load applying device |