Patents
Patents for H02K 49 - Dynamo-electric clutches; Dynamo-electric brakes (3,406)
05/1989
05/16/1989US4831298 Inductive torque transmitter with stationary field winding
05/16/1989US4831296 Rotary device
05/03/1989EP0313764A2 Energy conversion device
04/1989
04/26/1989EP0312601A1 Eddy current brake
04/04/1989US4817938 Bicycle ergometer and eddy current brake therefor
03/1989
03/30/1989DE3730615A1 Elektrische maschine mit permanentmagnet-erregung Electrical machine with permanent magnet excitation-
03/29/1989EP0308396A1 Eddy current brake for motor vehicles.
03/29/1989EP0308395A1 Eddy current brake for motor vehicles.
03/28/1989US4816151 Rotor drive for medical disposables
03/23/1989WO1989002668A1 Electric machine energized by permanent magnets
03/15/1989CN1031782A Non-contacting linear drive
03/14/1989US4811822 Armature rotors of electromagnetic brakes
03/09/1989WO1989002184A1 Contact-free linear drive
03/08/1989EP0305685A1 Linear drive without contact
01/1989
01/26/1989DE3824619A1 Permanent-magnet drive coupling
01/25/1989CN1030674A Improvements in or relating to electrical machines
01/24/1989US4800310 Bicycle ergometer and eddy current brake therefor
01/10/1989US4797591 Link suspension for a rotor member
12/1988
12/29/1988DE3719973A1 Device for movement conversion
12/27/1988US4793199 Electromagnetic precision rotary drive
12/14/1988EP0260253B1 Eddy current brake for motor vehicles
12/13/1988US4791330 Eddy current retarders for vehicles
12/13/1988US4790628 Apparatus for actuating objective lens
12/13/1988US4790212 Engine brake clutch including electrical brake
11/1988
11/24/1988DE3723948A1 Regenerative heat engine of crossed-piston construction with magnetically guided free pistons
11/22/1988US4785688 Torque limiter for paper feeding device of office machine and the like
11/17/1988EP0290824A2 Magnetic pump drive
11/03/1988WO1988008636A1 Eddy-currents machine for drive and braking purposes
11/03/1988WO1988008635A1 Eddy current brake
11/01/1988US4782411 Coupling device for transmitting axial movement to a rotatable body
10/1988
10/25/1988US4780637 Brushless eddy current coupling - stationary field
10/25/1988US4780066 Centrifugal pump having a magnetic coupling
10/20/1988DE3710842A1 Electromagnetic brake arrangement, in particular for ergometers
10/19/1988EP0286822A2 Magnetic pump drive
10/13/1988DE3809094A1 Eddy-current brake
10/04/1988US4775291 Magnetic clutch drive and thrust balancing mechanism for rotary pumps
10/04/1988US4775145 Load applying means for an exercise device
09/1988
09/29/1988DE3710769C1 Magnetic end-face rotary coupling (clutch)
09/14/1988EP0282375A1 Eddy current retarders for vehicles
08/1988
08/30/1988US4767378 Frontal magnet coupling with integrated magnetic bearing load relief
08/24/1988EP0279220A2 Leakage indicating device for a magnetic centrifugal pump
08/09/1988US4763033 Low power electric speed reducer, particularly for a home-trainer
08/09/1988US4761989 Method of calibrating a torque testing device and a magnetic calibration device therefor
07/1988
07/28/1988DE3729510C1 Contact-free linear drive
07/13/1988EP0274361A2 An electrically operated, electronically controlled power amplifier
06/1988
06/28/1988US4754182 Link suspension for a rotor member
06/28/1988US4754181 Magnet coupling through isolating plate
06/28/1988US4753729 Rotor drive for medical disposables
06/21/1988US4752194 Magnetically coupled pump with a bipartite separating pot
06/14/1988US4751486 Magnetic rotation apparatus
06/01/1988EP0269535A1 Hysteresis clutch having a torque little depending upon slippage, and its use
05/1988
05/31/1988US4748379 Arrangement in a tunable magnetron
05/25/1988EP0268085A1 Magnetic circulation pump
05/25/1988EP0268015A2 Canned motor pump or pump with an encased magnetic coupling
05/25/1988EP0268013A2 Canned motor pump or pump with an encased magnetic coupling
05/17/1988US4745317 Armature rotors for electromagnetic retarders
05/10/1988US4743170 Slide valve position indicator and magnetic coupler
04/1988
04/28/1988DE3636405A1 Magnetic rotor of a magnetic centrifugal pump (rotary pump)
04/14/1988DE3732766A1 Permanent-magnet-excited hysteresis coupling or brake
03/1988
03/31/1988DE3631915A1 Motor brake
03/23/1988EP0260253A1 Eddy current brake for motor vehicles.
03/22/1988US4732225 Deep-borehole drilling device with magnetic coupling
02/1988
02/24/1988EP0256132A1 Magnetic rotary device
02/16/1988US4725197 Devices for imparting rotary motion
02/10/1988EP0255736A1 Automatic tool exchange apparatus
02/10/1988EP0255723A1 Air gap sleeve for a permanent-magnet clutch
01/1988
01/27/1988EP0253903A1 Method for cooling of an eddy-current power brake
01/07/1988EP0251919A1 Low-power electric retarder, in particular for a home trainer
01/07/1988EP0251350A2 Electric motor
01/07/1988EP0250856A1 Centrifugal pump with magnetic coupling
12/1987
12/22/1987CA1230635A1 Bicycle ergometer and eddy current brake therefor
12/15/1987US4713567 Electromagnetic brake device for a sports training apparatus
12/15/1987US4712656 Armature rotors for electromagnetic brakes
11/1987
11/05/1987WO1987006779A1 Improvements in or relating to dynamometers
11/04/1987EP0244307A1 Armatures of electromagnetic reducers
10/1987
10/01/1987EP0221107A4 Rotor drive for medical disposables.
09/1987
09/16/1987EP0236504A1 Magnetic clutch
09/09/1987EP0235665A2 Coupling device
09/02/1987EP0235036A1 Induced rotors of electromagnetic brakes
08/1987
08/27/1987DE3605914A1 Magnetic coupling having monitoring of the rotary movement
08/27/1987DE3605899A1 Magnetic coupling with blocking monitoring
08/25/1987US4689513 Eddy current brake cooling
08/20/1987DE3603854A1 Ergometer, in particular bicycle ergometer
08/19/1987EP0232891A2 Drilling tool for deep wells
08/04/1987US4684836 Magnetic speed reduction device
07/1987
07/30/1987WO1987004576A1 Magnetic rotary device
07/28/1987US4683392 Eddy current coupling having stepped rotor and coil support
07/08/1987EP0228326A1 Coupling-retarder
07/08/1987EP0228227A2 Apparatus for urging an axially movable member to a neutral axial position
07/07/1987US4678409 Multiple magnetic pump system
07/07/1987US4678182 Bicycle ergometer and eddy current brake therefor
06/1987
06/10/1987EP0224660A1 Commutable permanent-magnet system, in particular for a vehicle brake
05/1987
05/27/1987CN86106267A High sensitivity magnetic actuator
05/26/1987US4668886 Eddy current retarders
05/13/1987EP0221107A1 Rotor drive for medical disposables.
04/1987
04/15/1987EP0218430A2 Magnetic actuator
04/09/1987DE3631672A1 Electromagnetic braking device for sports training equipment
03/1987
03/10/1987US4649307 Induction-type planetary reducing coupling for very high speed rotating machines
03/05/1987DE3530746A1 Eddy-current brake
03/03/1987US4647889 Rotary control having variable detents
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