| Patents for H02K 7 - Arrangements for handling mechanical energy structurally associated with the machine, e.g. structural association with mechanical driving motor or auxiliary dynamo-electric machine (44,087) |
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| 03/14/1991 | DE4027176A1 Submersible electric fuel pump - has independent brush spring fixing plate to assist final assembly of connection end |
| 03/14/1991 | DE3930408A1 Speed reduction gearbox for high speed electric motor - employs friction drive for variable torque, low noise speed reduction giving long life without lubrication |
| 03/13/1991 | EP0211000B1 Numerically-controlled electromechanical precision drive system |
| 03/13/1991 | CN1011957B Driving mechanism for hoist |
| 03/07/1991 | WO1991003098A1 Motor-wheel with variable reluctance step-by-step motor for low speed drive |
| 03/06/1991 | EP0414933A1 Shaft, especially a rotor shaft of an electric motor for driving a pump, extended with an excentric end trunnion |
| 03/06/1991 | CN2072742U Machinery starting device of one-phase synchronous motor |
| 03/06/1991 | CN1049705A Reversible numerically-controlled high-voltage shielded electrical motor / pump |
| 03/05/1991 | USH900 Magnetic repulsion supported ring |
| 03/05/1991 | US4998031 Stepping motor with one-way clutch |
| 03/02/1991 | WO1991003385A1 Motor-wheel for a vehicle |
| 03/02/1991 | CA2039709A1 Independent-drive wheel for a wheel-mounted vehicle |
| 02/27/1991 | EP0413829A1 Through type motor |
| 02/26/1991 | US4996613 Spindle motor with non-contact seal |
| 02/26/1991 | US4996016 Methods for making reinforced composite flywheels and shafts |
| 02/26/1991 | US4995658 Door locking devices |
| 02/26/1991 | US4995275 Device for supporting pinion shaft of electric motor for starting engine |
| 02/21/1991 | DE4025713A1 Stromwendermotor Commutator |
| 02/20/1991 | EP0412996A1 Electrically operated drum brake. |
| 02/19/1991 | US4994721 Electric drive |
| 02/19/1991 | US4994698 Vibratory linear motor system |
| 02/19/1991 | US4993277 Configuration for limiting the axial play of the shaft of a motor-drive mechanism |
| 02/13/1991 | EP0412569A1 Built-up stepping motor |
| 02/12/1991 | US4992690 Combination motor endshield and pump housing |
| 02/12/1991 | US4992686 Single housing stepper motor |
| 02/12/1991 | CA2023103A1 Enclosed pump motor and housing thereof |
| 02/08/1991 | CA2022256A1 Starter motor construction |
| 02/07/1991 | WO1991001584A1 Radial drive for implantable centrifugal cardiac assist pump |
| 02/07/1991 | DE4024297A1 Electric machine with screw or spur gears - arranged so that inner rotating screw or spur gear on rotor has one tooth fewer than outer fixed screw or spur gear |
| 02/05/1991 | US4990874 Core and contact assembly for a coaxial engine starter |
| 02/05/1991 | US4990807 Integrated drive generator having magnet generator on second shaft |
| 02/05/1991 | CA1279894C Worksite power generating set |
| 01/30/1991 | EP0410488A1 Drive unit with an electric motor |
| 01/30/1991 | CN2070512U Bicycle wheel axle generator |
| 01/29/1991 | US4987791 Miniature motor with a worm reduction gear |
| 01/29/1991 | US4987788 Electric motor-driven positioning element |
| 01/24/1991 | WO1991001060A1 Electric-motor-driven window operating system |
| 01/24/1991 | DE4004464A1 Compact electric hand tool |
| 01/24/1991 | DE4004463A1 Switching device for range of modular electric hand tools - has internal of external manually controlled ring for operating interior switch plate and brush angle for reversing motor |
| 01/24/1991 | DE3923378A1 Reversing drive mechanism for valve operation - has shaded pole motor, cleared rack-and-pinion drive with automatic clutch and dash-pot damper |
| 01/23/1991 | EP0408988A2 Universal electric motor |
| 01/23/1991 | EP0408987A2 Electric tool |
| 01/23/1991 | EP0408986A2 Switch device for electrical change-over switching of electric tools |
| 01/23/1991 | EP0408985A2 Hand held electric tool |
| 01/22/1991 | US4987333 Electric motor with inner drive pulley |
| 01/22/1991 | US4986675 Self-aligning bearing |
| 01/22/1991 | US4986144 Multi-plane setting type reduction gear drive structure |
| 01/17/1991 | DE4019787A1 Electrical motor drive window winding unit - has integrated control unit that is located in sealed housing |
| 01/16/1991 | EP0408127A2 Pressure pump for flowable mediums |
| 01/15/1991 | US4984668 Electrically-powered drive apparatus |
| 01/11/1991 | CA2020735A1 Radial drive for implantable centrifugal cardiac assist pump |
| 01/10/1991 | WO1991000639A1 Generator set |
| 01/09/1991 | EP0407316A1 Rotary pump with electrical drive |
| 01/09/1991 | EP0406978A1 Motion sensor apparatus |
| 01/09/1991 | CN2069179U Three phase asynchronous motor with harmonic reduction gear |
| 01/08/1991 | CA2020585A1 Rotary pump with electric drive |
| 01/07/1991 | CA2020618A1 Motion sensor apparatus |
| 01/03/1991 | DE4020176A1 Generating unit for current supply pref. for vehicle - has RPM regulated IC engine designed as air or liquid cooled radial engine with fan impeller fitted at rotor of current generator |
| 01/03/1991 | DE3920009A1 Pawl stopping device for sync. motor esp. for programme switch - allows only one direction of rotation and with reverse direction of rotation locking pawl engages |
| 01/02/1991 | EP0405173A2 Motor-operated pump of intank type |
| 01/02/1991 | EP0405002A1 Electric external rotor motor |
| 01/02/1991 | CN1048288A Stator rotating type electric machine |
| 12/27/1990 | WO1990015743A2 Actuating device for the parking brake of a motor vehicle |
| 12/27/1990 | EP0404299A1 Brushless motor |
| 12/27/1990 | EP0404223A2 Actuator control system |
| 12/26/1990 | CN2068295U Bicycle axle driven generator |
| 12/26/1990 | CN2068294U Miniature water-wheel type generator |
| 12/25/1990 | US4980608 Electric motor rotator for Christmas tree ornaments |
| 12/25/1990 | US4980591 One-way clutch for a reduction-geared motor |
| 12/25/1990 | US4980590 Flat brushless motor with a back-yoke formed as an eccentric weight to induce vibrations |
| 12/19/1990 | EP0403234A2 Servo mechanisms for rotary shafts |
| 12/19/1990 | EP0403179A1 Electrostatic micro-motor apparatus |
| 12/13/1990 | WO1990015476A1 Driving system and controller therefor |
| 12/12/1990 | EP0402240A1 Live ring with integrated motor |
| 12/12/1990 | EP0402179A1 An electric motor |
| 12/12/1990 | EP0401761A2 Magnet pump |
| 12/12/1990 | EP0401511A2 Arrangement of motor and gear box |
| 12/12/1990 | EP0401287A1 Power-operated device with a cooling facility. |
| 12/12/1990 | CN1010823B Output-adjustable driver for machineries |
| 12/05/1990 | EP0371132A4 Electric drive |
| 12/05/1990 | CN1047592A Flywheel generator |
| 12/05/1990 | CN1010728B Compact horizontal hydraulic generator set |
| 12/04/1990 | US4975607 Frequency generator with superimposed generation coil |
| 12/04/1990 | US4974464 Motorized anti-backlash linear actuator |
| 11/28/1990 | CN2066634U Protector for torque eliminating adjustion of motor |
| 11/27/1990 | US4973893 Piston and drum drive system |
| 11/27/1990 | US4973867 Stepping motor drive |
| 11/22/1990 | EP0398630A2 Windshield wiper motor |
| 11/22/1990 | EP0398609A1 Universal motor with secondary winding |
| 11/22/1990 | EP0398531A1 Anti-lock braking system |
| 11/22/1990 | EP0398470A2 Inertia damper |
| 11/20/1990 | CA1276672C Energy density homopolar generator |
| 11/15/1990 | CA2015138A1 Universal motor with secondary winding |
| 11/14/1990 | EP0397627A1 Tunnel boring machine |
| 11/13/1990 | US4969803 Compressor unit |
| 11/11/1990 | CA2013827A1 Motor and transmission assembly (13272-can) |
| 11/07/1990 | EP0236504B1 Magnetic clutch |
| 11/06/1990 | US4967674 Sewing machine for sewing on a tape |
| 11/01/1990 | WO1990013168A1 Structure of motor having built-in electromagnetic brake |
| 11/01/1990 | WO1990012962A1 Electric motor driven diaphragm pump |