Patents
Patents for H02K 49 - Dynamo-electric clutches; Dynamo-electric brakes (3,406)
08/1995
08/31/1995WO1995023281A2 Rotational control apparatus
08/31/1995CA2184061A1 Rotational control apparatus
08/30/1995EP0669700A1 Magnetic gearing with a plurality of magnetically cooperating parts that move with respect to each other
08/29/1995US5446327 Shaft mounted eddy current drive
08/18/1995CA2142571A1 Fitness equipment apparatus
08/02/1995EP0566745B1 Eddy current type retarder
07/1995
07/19/1995EP0663717A1 Magnetic coupling system for driving two rotating elements and fluid meter comprising such a system
07/18/1995US5434461 Shaft mounted eddy current drive
07/18/1995US5434459 Pulsed power linear actuator and method of increasing actuator stroke force
07/12/1995EP0662569A1 Brake apparatus
06/1995
06/21/1995EP0658967A2 Magnetic circulation pump for agressive fluids
06/20/1995CA2020071C Vehicle transmissions equipped with electric retarders
06/14/1995EP0657000A1 Device for linking two structures
06/08/1995WO1995015610A1 Micromotor
06/08/1995DE4339205A1 Electromagnetic braking device for rail vehicle, commercial vehicle, or aircraft
05/1995
05/16/1995US5415140 Method for moving a group of members along a trajectory by moving a second group of members with a reciprocating motion along another trajectory
05/11/1995WO1995012913A1 Increased stroke force pulsed power linear actuator
05/10/1995EP0593545B1 Magnetic device for converting reciprocating into rotating motion
05/02/1995US5411366 Motor driven environmentally safe pump
04/1995
04/06/1995CA2133615A1 Eddy-current brake support device and rail car truck equipped therewith
04/05/1995EP0646512A1 Supporting device for an eddy current brake and running gear for a railway vehicle with such a device
04/05/1995EP0256132B1 Magnetic rotary device
03/1995
03/28/1995US5400876 Method of calibration of hysteresis brakes
03/22/1995EP0644146A2 Tensioner
03/22/1995CN1100574A Stepless speed variator with clutch function
03/16/1995DE4330648A1 Radial pump
03/15/1995EP0642705A1 Inductive coupler.
03/01/1995EP0641064A1 Magnetic hysteresis clutch
03/01/1995EP0641063A1 Magnetic hysteresis clutch
03/01/1995EP0640520A1 Eddy current-rail brake magnet
02/1995
02/16/1995DE4428441A1 Eccentric drive having magnetic torque transmission
02/16/1995DE4342649C1 Magnetic centrifugal pump for corrosive media
01/1995
01/31/1995US5385457 Nutating positive displacement device having a magnetic element wire sensing arm
01/17/1995US5382792 Angle sensor with hermetic sealing and magnetic coupling
01/12/1995WO1995001521A1 Device for linking two structures
01/03/1995US5379217 Vehicle electromagnetic clutch control device
12/1994
12/28/1994EP0631366A2 Magnet pump with rear thrust bearing member
12/27/1994US5376862 Dual coaxial magnetic couplers for vacuum chamber robot assembly
12/21/1994EP0506898B1 Apparatus for measuring the change of position of a rotor
12/08/1994WO1994028614A1 Permanent magnet coupling and transmission
12/07/1994CN2185011Y Magneto-hydrodynamic electromagnetic speed regulating motor
11/1994
11/19/1994CA2123920A1 Electromagnetic coupling
11/15/1994US5363912 Electromagnetic coupling
10/1994
10/20/1994DE4312221A1 Hysteresis driver
09/1994
09/27/1994US5350283 Clean pump
09/14/1994EP0614514A1 Magnet-superconductor systems for controlling and influencing relative motion
09/05/1994EP0681665A4 Sealing and pumping means and methods.
08/1994
08/31/1994EP0613230A1 Improvements on electric brakes for vehicles
08/24/1994CN2175491Y Permanent magnet type adjustable clutch
08/23/1994US5340273 Sealing and pumping means and methods environmentally leak-proof pump with misting chamber defined therein
08/17/1994EP0610562A1 Excess temperature and start safety device in pumps comprising permanent magnetic clutches
08/17/1994EP0610503A1 Rotary apparatus
08/16/1994US5337862 Eddy-current brake with magnets shaped to contain magnetic field
08/10/1994CA2111434A1 Excess temperature and starting safety device in pumps having permanent magnet couplings
08/04/1994WO1994017583A1 Magnetic force-transmitting device
08/04/1994CA2154165A1 Magnetic power transmission device
07/1994
07/05/1994US5327033 Micromechanical magnetic devices
06/1994
06/29/1994EP0603471A1 A drive unit to move objects
06/29/1994EP0603413A1 Induced rotors for electromagnetic speed reducers fabricated with ferritic nodular cast iron
06/28/1994US5324540 System and method for supporting and rotating substrates in a process chamber
06/28/1994US5324232 Permanent-magnet front or control coupling to transfer measured values, forces or torques
06/23/1994DE4243014A1 Electric servomechanism for rotary movements with permanent magnets
06/08/1994EP0600110A1 Magnetic speed reducer
06/07/1994US5317976 Vehicle and high-speed transport system having rotating alternating polarity magnet member for levitating, propelling, and guiding the vehicle
05/1994
05/04/1994EP0595428A1 Material handling car and track assembly
05/04/1994CN2164142Y Electromagnetic speed-regulating motor
04/1994
04/29/1994CA2109355A1 Material handling car and track assembly
04/27/1994EP0593545A1 Magnetic device for converting reciprocating into rotating motion.
04/26/1994US5306996 AC/DC stepped drive system
04/19/1994US5304886 Printed circuit motor
04/19/1994US5303802 Eddy current braking system
03/1994
03/17/1994DE4230906A1 Electric servo device for vehicle steering system - uses rotor cooperating with driving and driven magnetic stators coupled via torsion element limiting their relative rotation
03/08/1994US5292284 Reluctance torque coupler
03/02/1994EP0341308B1 Eddy current brake
02/1994
02/16/1994EP0583035A1 Transmission mechanism, positioning device provided with such a transmission mechanism and lithographic device provided with such a positioning device
01/1994
01/27/1994DE4223827A1 Magnetic disc drive with two disc wheels arranged on parallel shafts - transmits torque without contact using magnetic fields and ring shaped permanent magnetic poles arranged on disc wheels with circumferentially changing polarity
01/27/1994DE4223826A1 Magnetic parallel shaft drive for contactless transmission of torque - uses wheels with magnets at circumference at least two of which are rotationally located on shafts
01/27/1994DE4223815A1 Magnetic series drive for contactless transmission of torque - has arrangement of driving and driven shafts mutually aligned with at least one wheel on each shaft having permanent magnets around its circumference
01/27/1994DE4223814A1 Magnetic worm drive for contactless torque transmission for two shafts at right angles - spaced from each other so that magnetised worm and worm wheel face each other with variable polarity at periphery
01/20/1994WO1994001592A1 Induced rotors for electromagnetic speed reducers fabricated with ferritic nodular cast iron
01/20/1994DE4229038A1 Cooling fan attachment for electric motor - uses electromagnetic induction between source part attached to machine shaft and fan wheel for rotation of latter
01/18/1994US5279396 Brake rotor armature with air cooling fins having embedded inserts
01/11/1994US5277125 Material handling car and track assembly having opposed magnet linear motor drive and opposed permanent magnet brake assembly
01/05/1994DE4316199A1 Drive for motor vehicle using magnetic system for torque transmission - has driving shaft fitted with first magnetic torsionally rigid torque transmitting unit, and driven shaft on which is fitted second magnetic torsionally rigid torque transmission unit
12/1993
12/29/1993EP0575935A1 Magnetic rail brake device
12/14/1993US5270600 Magnetic drive device
12/14/1993US5270596 Miniature D-C motor
12/09/1993WO1993024986A1 Inductive coupler
12/07/1993US5268603 Rotary electrical machine with zig-zag shaped conductors
12/07/1993US5267925 Exercise dynamometer
11/1993
11/23/1993US5263419 Vehicle with noncontact drive mechanism and transportation system using the same
11/16/1993US5261676 Sealing arrangement with pressure responsive diaphragm means
11/11/1993DE4214848A1 Permanent magnet coupling for in=line shafts - has overlapping cups at shaft ends with permanent magnets in walls and roller bearing between them
10/1993
10/27/1993EP0566745A1 Eddy current type retarder
10/19/1993US5254528 For rotating bodies
09/1993
09/28/1993US5248940 Apparatus for measuring changes in radial and/or axial position of a rotor in a drive system including an emf producing stationary conductor
09/16/1993DE4207710A1 Electromagnetically operated friction disc coupling esp. for driving fan wheel in IC engine - rotates wheel with direct rpm of driving pulley across first electromagnetic friction disc coupling and with two different windmilling rpms
09/16/1993DE4207709A1 Electromagnetically operated friction disc coupling e.g. for driving pump shaft of air compressor - drives shaft or hollow shaft or parts connected with shaft and driven part with disconnected electromagnetic coupling is carried along by eddy current coupling
09/15/1993EP0560466A2 Centrifugal blood pump and motor drive
09/13/1993CA2067706A1 Hysteresis brake and method of calibration thereof
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