Bizarre Patents
Behavior Modification Wristwatch
A wristwatch including a watch band and a watch body having an octagon shaped perimeter and being red in color and having the word STOP thereon to resemble a stop sign.
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| Number | Title | Issue Date |
| 8164294 | Torquer apparatus In general, one aspect of the subject matter described in this specification features a torquer apparatus that includes a rotor with magnetic poles such that, when radially projected on a concentric octahedron, the same symmetrical pattern is obtained on all faces o... | 04/24/2012 |
| 8125175 | Electric steering system An electric steering system is provided with: a steering torque detection unit which detects a steering torque acting on the shaft; a brushless motor which includes a rotor and a stator having multi-phase stator coils, and generates an assisting torque for assisting... | 02/28/2012 |
| 7915844 | Motor driving apparatus and method for control of motor revolution This invention provides a motor driving apparatus that made it possible to reduce torque ripples including those attributed to load variation of the motor and an associated method for control of motor revolution. An output stage to a multiphase DC motor is comprised... | 03/29/2011 |
| 7839112 | Torque control circuit for impact tool A torque control circuit includes a motor driving circuit, a motor operating current detection circuit, a reference voltage generation circuit, a maximum motor current setting circuit, a torque setting circuit, an information output circuit, a regulated-voltage powe... | 11/23/2010 |
| 7368887 | Servo control device and method of adjusting servo system A servo control device that displays, by a two-dimensional image, evaluation of control precision of a servo system, includes: an instruction unit that instructs a position instruction having periodicity; a unit that records a track of position data based on a posit... | 05/06/2008 |
| 7118506 | Actuator for active front steering system A active steering apparatus includes a housing, an input shaft, an output shaft, and an electrical motor. The electric motor has a stator fixed to the housing and a rotor. A first gear set interconnects the input shaft and the output shaft and includes a sun gear fi... | 10/10/2006 |
| 7095193 | Brushless DC motors with remote Hall sensing and methods of making the same A brushless DC motor apparatus includes a housing and a stator assembly coupled to the housing. The apparatus further includes a magnetic rotor assembly rotatably coupled to the housing. The magnetic rotor assembly is configured to rotate within the housing in respo... | 08/22/2006 |
| 7049785 | Apparatus and method of controlling a stepper motor An apparatus and method of controlling a stepper motor, includes a torque calculator to calculate torque operated on the stepper motor and to output to a controller a driving current setting signal corresponding thereto. The controller outputs to a driver a control ... | 05/23/2006 |
| 6945126 | Rotation sensor A rotation sensor functioning as both a rotation-angle sensor and a torque sensor is provided which, when applied to a steering sensor for an automobile, for example, permits reduction in the number of components and thus in the weight of the automobile and contribu... | 09/20/2005 |
| 6940241 | Circuit using current limiting to reduce power consumption of actuator with DC brush motor A drive circuit including a motor for positioning a damper from a rest position to a stalled position and protect the drive mechanism from damage due to increased current to the drive motor when the damper stalls by including a current limiter to prevent the current... | 09/06/2005 |
| 6832127 | Motor controller A motor controller comprising a machine system (12) having a load machine (1), a transmission mechanism (2) for transmitting power, and a motor for driving the load machine through the transmission mechanism; a simulator unit (11) having ... | 12/14/2004 |
| 6807463 | Processor-controlled mixture with weight sensors A system of intelligent appliances coupled by common household power lines or wireless links. One or more of the appliances serves as a system controller and may include a further communications interface for coupling to an external communications network, such as t... | 10/19/2004 |
| 6694238 | Electric power steering apparatus An electric power steering apparatus for assisting steering by conferring torque generated by an electric motor to a steering mechanism. The apparatus includes: a correction table created based on a result of actual measurement of torque ripple occurring ... | 02/17/2004 |
| 6300739 | Low cost limited angle torque DC brushless servomotor and method for fabricating thereof A novel low cost limited angle torque DC brushless servomotor is disclosed. The motor itself is a modified standard low cost DC brush motor which is modified by removing the brush assembly and substituting in its place an appropriately configured multicon... | 10/09/2001 |
| 6204625 | Driving apparatus for stepping motor A driving apparatus equipped with a step controlling circuit drives stepping motors in a micro stepping manner. An encoder which detects a mover position of the motor supplies a signal to the controlling circuit, thereby halting the micro-step-driving. Th... | 03/20/2001 |
| 5808439 | Satellite small angle tilting mechanism A satellite mechanism is provided for tilting a directional device such as an earth sensor, telescope, antenna, reaction wheel, etc. through a small angle using flexural supports which provide rigidity in all directions. The tilting mechanism is flexurall... | 09/15/1998 |
| 5767642 | Electromotive power steering device In an electromotive power steering device, when input is received in a reverse direction, i.e., from the road, no assist torque connection is made in the reverse direction. The upper inertial moment is appropriately compensated for. Detection signals from... | 06/16/1998 |
| 5742140 | Numerical-control machine tool A numerical-control machine tool has a plurality of positioning members (12, 13, 15) which are each driven along a positioning axis (x, y, z) by a feed screw (19, 20, 21). The arrangement is provided with a backlash compensation control arrangement (203, ... | 04/21/1998 |
| 5619112 | Bi-directional electric torque motor and driver A limited angle torque motor and control circuit are adapted to convert an electrical demand signal of varying magnitude into a motor shaft position relating to the magnitude of the demand signal. More particularly, a bidirectional motor is provided havin... | 04/08/1997 |
| 5587635 | Robot control apparatus for monitoring load on robot A robot control apparatus in which a load exerted on a driving system of a robot is detected to make it easy to judge a time for preventive maintenance or overhaul, and life of the robot driving system. A driving torque Ta outputted to the driving system ... | 12/24/1996 |
| 5559417 | Electronically commutated two-axis gyro control system A two degree of freedom gyroscope having a drive motor (20), with a permanent magnet rotor (22), which includes an optical sensor (11) for providing an X-axis signal and a Y-axis signal which are indicative of the displacement of the actual rotor (22) spi... | 09/24/1996 |
| 5504409 | Direct drive servovalve having two landed spool power stage A direct drive servovalve which includes a limited angle force motor having an eccentric engaging a two landed spool for converting rotary motion of the motor rotor into linear motion of the spool so as to control the flow of fluid from a source under pre... | 04/02/1996 |
| 5313148 | Electronically commutated two-axis gyro control system A two degree of freedom gyroscope having a drive motor (20), with a permanent magnet rotor (22), which includes an optical sensor (11) for providing an X-axis signal and a Y-axis signal which are indicative of the displacement of the actual rotor (22) spi... | 05/17/1994 |
| 5136227 | Active gravity compensation device for force control system An active gravitation compensation device, in which the weight of a driven member is supported substantially in a gravitation-free state by the output of a servo-actuator, and a small-sized torque motor is directly coupled to the driven member to control ... | 08/04/1992 |
| 5070289 | Miniature tactical angular rate sensor A miniature two degree of freedom fluid bearing angular rate sensor used primarily for tactical applications includes a spherical hydrodynamic fluid bearing rotor, a permanent magnet motor/torquer, and an optical pick-off, all of which are arranged to pro... | 12/03/1991 |
| 4951521 | Gimbal module A gimbal module for installation in a gimbal assembly and for operation by a simple type of robot device for use in a space environment. The module has a stator, which is fixedly connected to a first gimbal, and has a coaxial rotor, which is fixedly conne... | 08/28/1990 |
| 4888540 | Electronic torquer interface and erection control circuit A gyroscope erection system uses an electrolytic tilt transducer (21) to modulate oscillator signals (OSC, OSC) originating from a signal conditioning circuit (27). The signal conditioning circuit (27) receives the modulated oscillator signal and compares... | 12/19/1989 |
| 4862049 | Constant area pulse generating network A system for generating substantially constant area pulses suitable for application to an inertial instrument torquer. The torquer current pulses are directly utilized to provide an averaging feedback loop wherein the variations in pulse width due to erro... | 08/29/1989 |
| 4862050 | Optical commutation and tilt sensing for a permanent magnet gyro A permanent magnet two degree of freedom gyroscope (10) utilizing a single rotor (12) having a trapezoidal shaped pattern formed thereon. The trapezoidal pattern consists of a reflective segment (11) and a non reflective segment (13). Two optical sensors ... | 08/29/1989 |
| 4823063 | Authority limiter An authority limiter includes an input shaft clutched to an output shaft. The output shaft is geared to a motor. Opto-sensors, variable resistors or Hall effect devices provide control signals to a current source supplying power to the motor. Different am... | 04/18/1989 |
| 4803413 | Magnetic isolating and pointing gimbal apparatus A magnetic isolation and pointing gimbal apparatus provides support functions and multidegree of freedom pointing capability and simultaneous six degree of freedom bi-directional disturbance isolation. This is accomplished by integrating the support, isol... | 02/07/1989 |
| 4788483 | Parallel redundant actuator systems A parallel redundant actuator system of the kind wherein the signal in each of a plurality of lanes (31A, 31B, 31C) comprises the difference between a demand signal and a signal indicating the position of an output member of the system and the output memb... | 11/29/1988 |
| 4746843 | Motor control circuit and drive amplifier for a permanent magnet DC torque motor A control system for a brushless DC torque motor is disclosed. The motor comprises three coils, the wires at the end of each coil being brought out and connected to an amplifier that provides the current control signals to the coils. These control signals... | 05/24/1988 |
| 4724368 | Multiple phase electronically commutated torque motor A multiple phase electronically commutated torque motor including an annular stator element having at least two coils or windings on the periphery thereof and a magnetic rotor disposed concentrically within the stator for relative coplanar rotational moti... | 02/09/1988 |
| 4683407 | Authority limiter An authority limiter includes an input shaft clutched to an output shaft. The output shaft is geared to a motor. Opto-sensors provide control signals to a current source supplying power to the motor. Different amounts of opposing torque are applied by the... | 07/28/1987 |
| 4661753 | Differential torquer A differential torquer having at least one bifilar winding mounted on the torquer is disclosed. The bifilar winding has opposing polarities and the torquer is particularly well suited for use in reducing the temperature sensitivity of torquer servo loops.... | 04/28/1987 |
| 4656409 | Electromagnetic servo unit An electromagnetic servo unit is constituted with an outer casing (1), a first shaft (4) and a second shaft (5) both rotatably supported by the casing, an electric motor (2) built in the casing coaxially with the second shaft, a torque detecting mechanism... | 04/07/1987 |
| 4651075 | Servoed accelerometer having isolated voltage torquing and method Servoed accelerometer with isolated voltage torquing having first and second grounds, a servoed accelerometer having a torque coil, and an amplifier for driving said torque coil. The amplifier has inverting and non-inverting junctions. The second ground i... | 03/17/1987 |
| 4645994 | Space-referenced, rate-stabilized multiple-gimbal-platform system A space-referenced, rate-stabilized gimbal platform system for use in a vehicle. The system includes a master gimbal mounted to the vehicle frame and having a master platform that is pivotable with respect to a first axis that is perpendicular to the long... | 02/24/1987 |
| 4626759 | Low noise differential torquer servo loop and circuitry A differential torquer servo loop having means for comparing the balance between a torquer position related signal and a signal indicative of the difference in the magnitudes of the currents in the differential torquer and for rebalancing any difference t... | 12/02/1986 |
