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| Number | Title | Issue Date |
| 7145299 | Power window control system A master controller installed in a master controller box and slave controllers installed in car doors to open and close window glasses of a car are connected by a single wire to each of slave controllers for enabling to send control signals through such a single wir... | 12/05/2006 |
| 6906484 | Method for limiting the current in an electric motor, and a motor for carrying out one such method A method of limiting current in a DC motor acts on a full bridge circuit (137) through which the stator winding arrangement (102) of that motor is supplied with current. Upon response of the current limiter, energy supply to the stator winding arrangem... | 06/14/2005 |
| 6288507 | Motor drive circuit A motor drive circuit is comprised of an H-bridge circuit which is formed of a flywheel diode and a switching device and connected to a motor coil; a current detecting circuit which is connected to the H-bridge circuit, has a plurality of shunt resistors,... | 09/11/2001 |
| 5877573 | D.C. motor and reversing circuit A D.C. motor and an associated switch circuit for selecting between forward and reverse motor rotation about a motor axis. Two armature winding portions are disposed on an armature core, A magnetic flux source on the stator provides magnetic flux across a... | 03/02/1999 |
| 5734240 | Bidirectional DC motor A bidirectional DC motor comprising a commutator (6) which can be connected to a constant voltage source by a first and a second brush. The second brush is disposed opposite one side of the first brush in a spaced disposition with respect to the periphery... | 03/31/1998 |
| 5420486 | Multiple motors controllers This invention is for incrementally controlling energizing and de-energizing of at least two electrical motors in which motor armatures are mechanically coupled to a single mechanical member and in which motor stators are mechanically referenced to a seco... | 05/30/1995 |
| 5293518 | Multiple two-node windings electrical motors controllers The invention discloses a controller for controlling an electric motor having a stator and an armature, the stator includes stator magnetic poles, the armature includes multiple two-node, open circuit armature windings. The armature windings are inductive... | 03/08/1994 |
| 5138243 | Switching device for the electric switching of electric tools It is proposed to obtain a switching device for the electrical switching (i.e. switching on and off or reversing the direction of rotation) of electric tools, especially electric hand tools such as drills, grinders and the like, by mounting a rotatable se... | 08/11/1992 |
| 4997237 | Bi-modal DC motor control for a motor driven anti-lock brake system Differential performance characteristics are achieved in a motor-driven anti-lock braking system with a DC motor having a first brush which is employed for both forward and reverse motor rotation, a second brush which is employed in connection with the fi... | 03/05/1991 |
| 4978877 | Mounting device for brushes in a reversible commutator motor The invention concerns a device for mounting a pair of carbon brushes in an electric hand tool. To allow for the reversibility of the motor the device is mounted rotatably relative to the shaft of the motor. Further, the device is also used on the switch ... | 12/18/1990 |
| 4910790 | Two-speed motor A two-speed permanent magnet D.C. electric motor has a housing, permanent magnets carried by the housing, and an armature assembly installed in the housing. The armature assembly has a shaft rotatably mounted in the housing, first coil windings, a first c... | 03/20/1990 |
| 4823037 | DC Electric motor having field poles of permanent magnet A DC electric motor which comprises: a reversibly rotatable rotor having an armature core, an armature winding and a commutator; a stator having a yoke and a plurality of field poles provided on an inner circumference of the yoke and each having a permane... | 04/18/1989 |
| 4367887 | Automatic passive safety seat belt system for a vehicle A passive safety seat belt system for a vehicle includes a belt that is driven between a restraint position and a release position by a direct current electric motor having first and second brushes positioned diametrically opposite each other on the commu... | 01/11/1983 |
| 4338536 | Reversible direct current machine with movable stator A motor or generator of the direct current type includes a stator carrying permanent magnets that is rotatable between first and second operational positions. A rotor having a winding and cooperating with a commutator is rotatable in either direction. The... | 07/06/1982 |
| 4232256 | Unitary electric motor and bi-directional controller arrangement An electrically energizable device of the type that may be selectively rotated through first and second angles of rotation in respective opposite directions in response to the electrical energization thereof in respective opposite senses supports and osci... | 11/04/1980 |
| 4095155 | Direction reversing direct current motors and their control A direct current motor which includes a stator for producing a fixed magnetic field and a plurality of armature windings. The motor is caused to rotate by applying current to each winding only while that winding is passing through a zone in a given orient... | 06/13/1978 |
