| Patents for F16D 37 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive (740) |
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| 04/16/1991 | US5007513 Electroactive fluid torque transmission apparatus with ferrofluid seal |
| 03/05/1991 | CA1281101C System for controlling the clutch torque of an electromagnetic clutch for vehicles |
| 02/07/1991 | WO1991001420A1 Fastening element for fixing insulating strips and/or panels on a solid substructure |
| 01/17/1991 | DE3922930A1 Variable speed servo drive for vehicle accessories - has electro-viscous clutch and constant drive electric motor |
| 01/17/1991 | DE3921854A1 Force transmission system - using magnetisable particles dispersed in esp. silicone oil |
| 01/09/1991 | EP0406692A2 Fluid responsive to a magnetic field |
| 12/18/1990 | US4977988 Control system for a clutch for a vehicle |
| 12/04/1990 | US4974706 Torque limiter |
| 11/15/1990 | WO1990013756A1 Soft start coupling |
| 11/13/1990 | US4969545 Apparatus and control method for a magnetic powder clutch |
| 11/06/1990 | US4967887 Soft start coupling |
| 10/31/1990 | EP0395007A2 Electroviscous fluid clutch |
| 10/04/1990 | DE3910364A1 Testing machine and testing method for samples or test bodies |
| 09/18/1990 | US4957644 Magnetically controllable couplings containing ferrofluids |
| 07/24/1990 | US4942950 Method and apparatus for controlling an electromagnetic clutch for use on a vehicle |
| 05/16/1990 | EP0212900B1 Method and apparatus for controlling an electro-magnetic particle clutch |
| 05/01/1990 | US4920929 Variable speed coupling system for cooling an engine |
| 04/12/1990 | DE3933717A1 Ski for downhill skiing - has top bearing layer and bottom multilayer portion with core between |
| 04/04/1990 | EP0361931A1 Non-aqueous electro-rheological fluid |
| 03/27/1990 | US4911275 System for controlling a clutch for a vehicle |
| 02/28/1990 | EP0356145A2 Er fluid force transmission and conversion device with magnetic coupling |
| 02/06/1990 | US4898267 Electroviscous fluid clutch |
| 02/06/1990 | US4898266 Double element electroviscous fluid clutch |
| 01/30/1990 | US4896754 Electrorheological fluid force transmission and conversion device |
| 01/24/1990 | EP0351538A1 Electromagnetically controlled clutch |
| 01/23/1990 | US4895233 Electromagnetic coupling apparatus equipped with heat pipes |
| 11/21/1989 | US4882224 Magnetic particles, method for making and electromagnetic clutch using same |
| 11/15/1989 | EP0342041A1 Electro-rheological fluid |
| 10/03/1989 | US4871049 Coupling device of magnetic particle type |
| 09/19/1989 | US4867287 Control method for magnetic powder clutch |
| 08/29/1989 | US4860863 Method and apparatus for controlling a clutch of a vehicle |
| 08/15/1989 | US4856631 Permanent magnet coupling torque limiter |
| 08/09/1989 | CN2042530U 磁粉离合器 Magnetic clutch |
| 07/18/1989 | US4849120 Magnetically controllable couplings containing ferrafluids |
| 07/11/1989 | US4846321 Control system for a clutch for a vehicle |
| 07/04/1989 | US4844220 Torque limiter |
| 05/24/1989 | EP0317186A2 Engine cooling fan |
| 05/02/1989 | US4825991 Control system for a clutch for a vehicle |
| 03/28/1989 | US4815674 Retractor with electro-rheological lock |
| 03/14/1989 | US4811823 Magnetic particle clutch |
| 03/07/1989 | US4811222 Method and apparatus for controlling electromagnetic powder clutch for vehicle |
| 02/07/1989 | US4803628 Method and apparatus for controlling electro-magnetic particle clutch |
| 02/07/1989 | US4802560 Combined wheel/brake apparatus using electro-rheological fluid |
| 12/14/1988 | EP0294935A2 Particle brake clutch muscle exercise and rehabilitation apparatus |
| 11/29/1988 | US4787489 System for controlling an electromagnetic clutch for a vehicle |
| 11/08/1988 | US4782927 Electroviscous fluid-actuated devices |
| 08/23/1988 | US4765315 Particle brake clutch muscle exercise and rehabilitation apparatus |
| 08/03/1988 | EP0276316A1 Magnetic particle type coupler |
| 04/26/1988 | US4739864 Electromagnetic powder clutch for use in a power transmitting system having an automatically operated constant-mesh transmission |
| 03/15/1988 | US4730712 System for controlling a clutch for a motor vehicle |
| 03/15/1988 | US4730711 Electromagnetic clutch control system for automobiles |
| 02/23/1988 | CA1233045A1 System for controlling the transmission ratio of an infinitely variable transmission |
| 02/09/1988 | US4723644 Electromagnetic clutch control system for automobiles |
| 01/14/1988 | WO1988000298A1 Magnetic particle type coupler |
| 01/07/1988 | EP0251571A2 Control system for a clutch for a vehicle |
| 01/07/1988 | EP0135525B1 Friction coupling particularly for the transmission of small torques |
| 12/29/1987 | US4715482 Method and apparatus for controlling an electromagnetic clutch for use on a vehicle |
| 11/04/1987 | EP0244223A2 Control system for a clutch for a vehicle |
| 10/21/1987 | EP0242127A2 System for controlling a clutch for a vehicle |
| 10/15/1987 | DE3612189A1 Switchable liquid friction clutch which is also variable in its characteristic |
| 10/07/1987 | EP0240284A2 System for controlling an electromagnetic clutch for a vehicle |
| 10/07/1987 | EP0240283A2 System for controlling a clutch for a motor vehicle |
| 09/15/1987 | CA1226923A1 System for controlling the clutch torque of an electromagnetic clutch for vehicles |
| 09/02/1987 | EP0234564A2 Torque limiter |
| 08/20/1987 | DE3615591C1 Centrifugal clutch |
| 07/28/1987 | US4682676 Electromagnetic powder clutch with two powder gaps |
| 07/21/1987 | US4681197 Electromagnetic clutches and brakes |
| 07/21/1987 | US4680990 System for controlling the transmission ratio of an infinitely variable transmission |
| 07/14/1987 | US4680712 System for controlling an electromagnetic clutch for a vehicle |
| 07/14/1987 | US4680711 Control system for an infinitely variable transmission |
| 07/14/1987 | US4679674 System for engaging an electromagnetic clutch upon acceleration of an engine |
| 07/07/1987 | CA1223942A1 System for controlling an electromagnetic clutch for an automotive engine |
| 06/23/1987 | US4675818 System for controlling an electromagnetic clutch for an automotive engine |
| 06/23/1987 | CA1223322A1 Control system for an infinitely variable transmission |
| 06/02/1987 | US4669591 System for controlling the clutch torque of an electromagnetic clutch for vehicles |
| 05/12/1987 | US4664236 Electrically controlled, progressive, frictional, torque transmitting device |
| 05/05/1987 | US4662496 System for controlling the clutch torque of an electromagnetic clutch for vehicles |
| 04/14/1987 | US4657123 System for engaging an electromagnetic clutch during range change operation |
| 03/04/1987 | EP0212900A2 Method and apparatus for controlling an electro-magnetic particle clutch |
| 11/25/1986 | US4624349 Method and apparatus for controlling an electromagnetic clutch for use on a vehicle |
| 11/18/1986 | US4623052 Method and apparatus for controlling an electromagnetic clutch for use on a vehicle |
| 10/14/1986 | US4616740 Magnetic particle type electromagnetic coupling apparatus |
| 09/16/1986 | US4611697 Electromagnetic powder coupling with cooling fins |
| 08/19/1986 | US4606446 Apparatus for controlling a magnetic particle clutch for use in a vehicle |
| 08/12/1986 | US4605112 Control system for an infinitely variable transmission with an electromagnetic powder clutch |
| 07/08/1986 | US4598806 Vehicular electromagnetic clutch control system having a throttle switch failure detecting circuit |
| 04/23/1986 | EP0178781A2 Electromagnetic clutch control system for automobiles |
| 04/16/1986 | EP0178078A1 Electrically controlled, progressive, frictional, torque transmitting device |
| 04/16/1986 | EP0178060A1 Electromagnetic clutch control system for automobiles |
| 03/11/1986 | US4575103 Magnetic seal for magnetic particle clutches and brakes |
| 02/26/1986 | EP0172601A1 Control system for a motor vehicle propulsion unit |
| 11/21/1985 | EP0161824A1 System for controlling the transmission ratio of an infinitely variable transmission |
| 11/05/1985 | US4550816 System for controlling stall speed for an electromagnetic clutch |
| 09/10/1985 | CA1193342A1 Control system for an infinitely variable transmission with an electromagnetic powder clutch |
| 08/28/1985 | EP0153050A1 System for controlling an electromagnetic clutch |
| 08/21/1985 | EP0152182A2 System for controlling an electromagnetic clutch of a vehicle |
| 08/07/1985 | EP0151038A2 System for controlling an elektromagnetic clutch for a vehicle |
| 08/07/1985 | EP0151037A2 System for controlling the clutch current of an electromagnetic clutch for a vehicle |
| 07/03/1985 | EP0147202A2 System for controlling the clutch torque of an electromagnetic clutch for a vehicle |
| 07/03/1985 | EP0147201A2 System for controlling the clutch torque of an electromagnetic clutch for a vehicle |