Bizarre Patents
Pillow with retractable umbrella
A pillow assembly having a supporting assembly and a retractable umbrella assembly that is easily transportable and allows a user to support his/her head while covering their face from sunlight.
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| Number | Title | Issue Date |
| 7710053 | Motor driving system and motor driving method A motor driving apparatus including inverter apparatuses, inverter control circuits, and a plurality of inverter control apparatuses for performing variable-speed driving of a single motor, breakers each of which being provided between each inverter apparatus and th... | 05/04/2010 |
| 7332883 | Method and apparatus for initializing operation of a disk drive Disk drives such as hard (magnetic) disk drives take a certain amount of time to initialize and “spin up” to the operational rotational speed of the disk or disks, thereby creating a time lapse from power up to when data can first be read from or written to the ... | 02/19/2008 |
| 6906493 | Electronic brake for motor In an electronic system, motor braking is accomplished by applying direct current (DC) voltage, developed across a capacitive element during a run mode operation, across terminals of an alternating current (AC) or an induction motor. While the motor is ON, i.e. duri... | 06/14/2005 |
| 6283543 | Motor vehicle roof An improved motor vehicle roof is provided which includes a roof opening provided in a fixed roof surface, at least one closing element for selectively at least partially closing the roof opening, an electrical adjusting drive for driving the closing elem... | 09/04/2001 |
| 6286108 | Disk system and power-on sequence for the same With respect to the disk drives provided power from a single power source in a disk drive system, start up power is first supplied to a first start-up group of the disks, preferably comprising all of the master disks, with the size of the group being sele... | 09/04/2001 |
| 6131142 | Disk system and power-on sequence for the same With respect to the disk drives provided power from a single power source in a disk drive system, start up power is first supplied to a first start-up group of the disks, preferably comprising all of the master disks, with the size of the group being sele... | 10/10/2000 |
| 5650699 | Remote starting circuit and method for brushless DC motor A remote starting control circuit for a polyphase motor includes a controller, a zero-crosspoint detector, a power switch, a commutation circuit and a motor drive output circuit. The controller controls an excitation current applied to the motor. When the... | 07/22/1997 |
| 5581168 | Starter/generator system with DC link current control A synchronous generator usable in both a starting mode of operation and a generating mode of operation includes a permanent magnet generator having a permanent magnet and an armature winding rotatable with respect to the permanent magnet, an exciter porti... | 12/03/1996 |
| 5512806 | Device for controlling the function of an electric starting motor for a windshield wiper of the rear window which opens on an automotive vehicle A device is described for controlling the operation of an electric motor for driving the arm of a windshield wiper of an opening window, particularly the rear window of an automotive vehicle. The device has a control unit for supplying power to the motor.... | 04/30/1996 |
| 5359272 | Sensorless drive control and method for doubly-fed reluctance motor A doubly-fed reluctance motor (10) has a primary winding set (20) and a secondary winding set (22). A drive control (32) for the motor includes a connection (36) to the primary winding so primary winding current and voltage signals (ip, Vp... | 10/25/1994 |
| 4980621 | Control arrangement for controlling the power supplied to an electric motor A control arrangement for controlling the power supplied to an electric motor connected to a rotary member to drive same in rotation by way of a belt drive, to accelerate the rotary member to a given speed and to brake it in a slip-free manner provides th... | 12/25/1990 |
| 4775823 | Method for controlling opening/closing operation of automatic door in its accidental condition According to a method for controlling an automatic door of the present invention, even when an accidental condition occurs due to some obstacle clogging a traveling lane of the door, the door can move at a high speed to its deceleration point so as to imm... | 10/04/1988 |
| 4443745 | Rotation signal detection device of DC motor with brushes Disclosed is a rotation signal detection device for use with a circuit for driving a DC motor with brushes, the device comprises a differential amplifier for detecting a pulse signal component of a waveform of the current supplied to the motor, a circuit ... | 04/17/1984 |
