Patents for H02K 41 - Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path (10,066) |
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07/28/1981 | US4281263 Hybrid stator and a two-axis induction electric motor constructed therewith |
06/30/1981 | US4276490 Brushless DC motor with rare-earth magnet rotor and segmented stator |
06/26/1981 | EP0024429A4 Linear actuator. |
06/16/1981 | US4274020 Synchronous linear motor |
06/09/1981 | US4272226 Fluid pump and method for operating same |
06/02/1981 | US4271367 Linear induction motor |
05/26/1981 | US4269493 Electromagnetic camera shutter control device |
05/26/1981 | CA1101948A1 Linear induction drive system for accelerating and decelerating moving walkway |
05/26/1981 | CA1101710A1 Epicyclic electromechanically actuated lens drive |
05/12/1981 | US4267471 Linear induction motor |
05/12/1981 | CA1101035A1 High performance stepper motor |
04/30/1981 | WO1981001223A1 Flat-coil actuator array for multi-head disk drive |
04/29/1981 | EP0027724A1 Reversible motor |
04/08/1981 | EP0026753A1 A method and a device for repeatedly applying a contact pressure of a predetermined magnitude |
03/31/1981 | US4259602 Electromagnetic linear-motion device |
03/24/1981 | US4258278 Linear induction motor |
03/18/1981 | EP0025297A1 Improvements in electrical machines |
03/11/1981 | EP0024429A1 Linear actuator |
03/10/1981 | US4255680 Linear induction motor |
03/03/1981 | US4254350 Asynchronous line-fed motor |
03/03/1981 | US4254349 Linear induction motor |
02/03/1981 | US4249114 Electromechanical energy converter |
01/28/1981 | EP0022788A1 Fluid pump and method for operating same |
01/27/1981 | US4247794 Linear actuator |
01/27/1981 | US4247793 Electric motor |
01/27/1981 | US4246694 Method of making linear motor stator |
01/07/1981 | EP0021965A1 Printer with linear motor |
01/07/1981 | EP0020750A1 Stepper motor |
01/06/1981 | US4243899 Linear motor with ring magnet and non-magnetizable end caps |
01/06/1981 | CA1093134A1 Electromagnetic driving device |
12/30/1980 | CA1092662A1 Two-phase, sliding-field electromagnetic inductors |
12/23/1980 | US4241268 Linear induction motor |
12/23/1980 | US4240728 Photographic camera shutter electromagnetic system for controlling photographic light admitted to camera |
12/16/1980 | US4239997 Linear induction motor |
12/10/1980 | EP0020177A1 Fixed disc head actuator assembly |
12/02/1980 | US4236455 Method and apparatus for generating linear electromagnetic travelling fields for driving and increasing the adhesive load of railway motored vehicles |
11/25/1980 | CA1090436A1 Armature rails and rail carrying arrangement for attraction type magnetically floated travelling body |
11/25/1980 | CA1090404A1 Rotor for stepping motor |
11/18/1980 | US4234831 Compound rotary and/or linear motor |
11/18/1980 | US4233906 Linear induction motor with improved rail assembly |
11/04/1980 | US4232237 Asynchronous line-fed motor |
10/28/1980 | CA1088642A1 Synchronous linear motor with subdivided field winding |
10/14/1980 | US4228372 Linear induction motor |
10/07/1980 | US4227100 Dual output force motor |
09/16/1980 | CA1085901A1 Electromagnetic induction actuator for magnetic disc file |
09/04/1980 | WO1980001861A1 Linear actuator |
09/02/1980 | US4220899 Polyphase linear motor |
09/02/1980 | CA1084977A1 Linear motor |
08/05/1980 | US4216397 Linear induction motor |
07/29/1980 | US4215283 Linear stepping motor |
07/10/1980 | WO1980001399A1 Fluid pump and method for operating same |
07/08/1980 | US4211943 Linear induction motor |
06/26/1980 | WO1980001342A1 Stepper motor |
06/25/1980 | EP0012555A1 Homopolar synchronous machines |
06/24/1980 | US4209718 Linear induction motor |
06/17/1980 | US4208596 Linear induction motor |
06/17/1980 | CA1079784A1 Linear actuator |
05/28/1980 | EP0011395A1 A rotatably mounted member and an entertainment machine comprising such |
05/28/1980 | EP0011149A1 Positioning device for magnetic heads |
05/27/1980 | US4205243 Synchronous linear motor |
04/15/1980 | US4198582 High performance stepper motor |
04/15/1980 | US4197933 Linear induction drive system for accelerating and decelerating moving walkway |
04/08/1980 | US4197488 Electrical machine |
04/01/1980 | CA1074880A1 Traction means with electrodynamic vehicle suspension for high-speed land transport |
02/26/1980 | US4190779 Step motors |
02/12/1980 | US4188552 Garage door opener including a linear actuator |
02/05/1980 | US4187453 Electric motor drive system |
01/09/1980 | EP0006669A1 Variable-reluctance electric machine |
12/25/1979 | US4180766 Reciprocating linear drive mechanism |
12/18/1979 | CA1068320A1 Multi-actuator system using single magnetic circuit |
11/15/1979 | WO1979000951A1 Electric motor with very little rotor inertia and balanced cone motion |
11/13/1979 | CA1066345A1 Linear piezoelectric actuator with liner controlling frictional wear |
10/31/1979 | EP0004995A1 Linear and rotary device |
10/23/1979 | US4172229 High-power and high-speed prismatic linear motor |
10/16/1979 | US4171493 Integral braking system for linear induction motor |
10/02/1979 | CA1063723A1 Device for writing and/or reproducing information in respectively from a rotating disk-shaped record carrier |
08/28/1979 | CA1061394A1 Electromagnetic devices |
08/21/1979 | CA1060934A1 Attachment of side covers to linear induction motor |
07/03/1979 | US4160268 Signal pickup device with tracking control and jitter compensation for a video disc |
05/01/1979 | US4152060 Epicyclic electromechanically actuated lens drive |
05/01/1979 | CA1053646A1 Actuating device |
04/24/1979 | US4151447 Linear motor |
04/17/1979 | US4149808 Linear drive for a printing apparatus |
04/10/1979 | US4148260 High speed transit system |
04/10/1979 | CA1052282A1 Turntable direct-drive system |
03/20/1979 | US4145725 Electromagnetic actuator |
03/13/1979 | US4144466 Damping vibrations in voice coil actuator |
03/07/1979 | EP0000982A1 Electromagnetically actuated lens drive |
02/27/1979 | US4142119 Rotary electric device |
01/30/1979 | US4136674 System for solar radiation energy collection and conversion |
01/23/1979 | US4136293 Multi-actuator system using single magnetic circuit |
01/02/1979 | US4132910 Linearly moving or rotated flat armature for motor and pulling magnets |
12/26/1978 | US4131828 Apparatus for rotatively driving a turn table |
12/26/1978 | US4131813 Electromagnetic apparatus generating a gliding magnetic field |
12/26/1978 | US4131812 Attachment of side covers to linear induction motor |
12/26/1978 | US4131811 Traction means with electrodynamic vehicle suspension for high-speed land transport |
11/21/1978 | US4126797 Electromagnetic driving device |
11/21/1978 | CA1042997A1 Linear induction motor assembly |
11/07/1978 | CA1041948A1 Polyphase motor fields in conductor/non-conductor sorting systems |
10/31/1978 | US4123691 Electromagnetic devices |