Celebrity Inventors
Walt Disney was no Mickey Mouse inventor. He devised a serious animation camera which he patented. With the device, his company created "Snow White".
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| Number | Title | Issue Date |
| 4511797 | Circuit arrangement for positioning the printing mechanisms in printers employing a d.c. motor A d.c. motor positions printing mechanisms. A circuit arrangement is provided in which a scanner disc, having peripheral slots, is arranged on the shaft of the motor and the slots are scanned by a scanner and counted in the positive direction and in the n... | 04/16/1985 |
| 4506199 | Agricultural fan control system Agricultural fan control system for controlling operation of fan in an agricultural installation including a thermostat temperature control, a manual constant speed adjustment temperature control, and an automatic variable fan speed with a minimum tempera... | 03/19/1985 |
| 4481450 | System for controlling a vehicle window and the like For use in a motor vehicle having a windshield, a control system comprises a raindrop sensor which emits a beam of radiation into a section of the windshield from the inner surface thereof at such an angle of incidence that the beam reflects off the outer... | 11/06/1984 |
| 4476419 | Windshield wiper control device A windshield wiper control device for use on a vehicle includes a light-emitting unit mounted on the vehicle outside of a compartment for emitting a ray of infrared radiation, a photodetector unit mounted on the vehicle within the compartment and having a... | 10/09/1984 |
| 4473787 | Equipment for maintaining the spacing of track-bound vehicles The equipment for maintaining the spacing of track-bound vehicles (1) shall prevent collisions of the vehicles (1). For this, light emitters radiating rearwardly and laterally in desired directions are provided at the rear on the vehicles (1) and light re... | 09/25/1984 |
| 4471275 | Motor driven drapery closure and control circuit combination A motor driven drapery closure is provided with means for operating the closure between defined opened and closed positions without the use of limit switches. Means are also provided to stop the operation of the motor and back it up slightly if a signific... | 09/11/1984 |
| 4467251 | Object sensing apparatus An object sensing apparatus includes a plurality of light emitting diodes for illuminating a region of space and a plurality of closely arranged light detectors for receiving light reflected from an object. The apparatus is particularly useful in connecti... | 08/21/1984 |
| 4463294 | Windshield wiper control apparatus A control circuit for a windshield wiper motor which utilizes a plurality of infrared emitters that emit a chain of infrared pulses towards a plurality of infrared sensors. When rain passes between the infrared emitters and the infrared sensors, it will i... | 07/31/1984 |
| 4460857 | Encoder controlled apparatus for dynamic braking A rapidly-spinning motor-driven disc is quickly brought to a halt by utilizing the motor in a controlled current dynamic feedback mode. An electrical signal is provided to cut off the motor braking current when the rotating motor shaft reaches substantial... | 07/17/1984 |
| 4459523 | Motor speed control A motor speed control is disclosed herein. The speed control includes a photoelectric array and a control member situated within a housing. The photoelectric array provides a discreet, regulated voltage in accordance with the position of the control membe... | 07/10/1984 |
| 4450391 | Centrifuge protective circuits for preventing excessive speed of different rotor types A light emitting element and a photo detector are disposed opposite each other in an outer housing of a centrifuge. When an angle rotor is mounted on a motor shaft, light emitted from the light emitting element is received by the photo detector without be... | 05/22/1984 |
| 4449084 | Positioning servo-mechanism or tachometer employing self-scanning light sensing array Apparatus for precise positioning of a movable stage such as a microscope stage including a light source and a self-scanning array of photodiodes for receiving light from the light source. An opaque shade is adapted to be moved with the shade and block at... | 05/15/1984 |
| 4425537 | X-Y Addressable workpiece positioner and mask aligner using same In an X-Y addressable workpiece positioner the workpiece to be positioned, such as a semiconductive wafer to be aligned with a mask image, is coupled to move with a work stage moveable in the X-Y direction and having a two-dimensional array of positioning... | 01/10/1984 |
| 4422026 | Servo control arrangement utilizing alternately energized light sources and a single photodetector A servo control arrangement is provided that accurately controls the positioning of a movable member. The movable member is controlled by a motor through a drive train. A coded member is carried either by the drive train or the controlled movable member s... | 12/20/1983 |
| 4399393 | Accelerator control for electric vehicles An accelerator control for field-controlled DC motors, or other applications requiring non-linear response to linear control input. The control uses a photodetector detecting light reflecting from a movable vane connected to the control input.... | 08/16/1983 |
| 4394889 | Modified slowdown and braking of an elevator car In elevator systems where the stop and/or slowdown operations are preset for maximum car velocity the stopping and/or slowdown operations are delayed in proportion to the variation from maximum car velocity in order to compensate for the shorter stopping ... | 07/26/1983 |
| 4391362 | Speed controlled infeed conveyor system A speed controlled conveyor system in which the motor driving an input conveyor is speed regulated to control the axial product pressure. This pressure is measured by the outward bowing of the column of articles as it moves along a downwardly curving chut... | 07/05/1983 |
| 4371814 | Infrared transmitter and control circuit An infrared transmitter and control circuit for a load such as a ceiling fan which is capable of starting and regulating the speed of the ceiling fan as well as reversing the direction of the ceiling fan, controlling a light. The apparatus allows the sele... | 02/01/1983 |
| 4359672 | Motor starter with optically coupled pushbutton station A motor starter includes a line contactor having a coil connected to a control circuit. The control circuit includes one or more remote pushbutton stations which are connected in a control loop by fiber optic tubes. Operation of the motor can be controlle... | 11/16/1982 |
| 4355271 | Control apparatus Control apparatus for controlling windscreen wiper apparatus of a vehicle. An infra-red radiating device directs infra-red radiation from the interior of the vehicle through the windscreen to be reflected from the outer surface of the windscreen back into... | 10/19/1982 |
| 4351493 | Tape tension control for a tape recorder A device for controlling tension in an elongated article arranged along a path, and a tape recording and/or reproducing apparatus including such a device, in which a control circuit influences the tension in the article, such as a tape, responsive to an e... | 09/28/1982 |
| 4344024 | Digital control system for automatic-focus cameras A digital control circuit for use in automatic-focus cameras is disclosed, which is suitable for use in self-focusing systems which determine focus by means of triangulation. The system corrects for motor oscillation about a state of proper focus, defocus... | 08/10/1982 |
| 4333015 | Solid-state commutator for use in electric motors A commutator is manufactured of a printed circuit board having a circular shape. A plurality of terminals are evenly spaced around the periphery of the printed circuit board, and may be connected to junction points in an armature winding. Phototransistors... | 06/01/1982 |
| 4317073 | Windshield wiper control system An automatic control system for a vehicle windshield wiper system which includes a plurality of sensors which are activated in response to various degrees of moisture precipitation or rain and an electronic control circuit adapted to be activated by the s... | 02/23/1982 |
| 4276506 | Motor control circuit A motor control circuit controls the speed of a single-phase split capacitor or shaded pole electric motor, and permits operation of the motor over a wide range of speeds without stalling. A first gated bilateral switch such as a triac is connected in ser... | 06/30/1981 |
| 4273334 | Reel mechanism for use in a playing device A reel mechanism for use in a playing device comprises a DC motor having a rotor formed with an outer apron on which are displayed a plurality of substantially equally spaced symbols which are to be sequentially displayed in a visual field. The rotor rota... | 06/16/1981 |
| 4262238 | Controlled current supply circuit from a battery to a motor To reliably turn OFF a pulse-controlled thyristor in series with a battery supplied motor circuit, in case of malfunction of the control circuit, or even of the supervisory circuit itself, the voltage across the thyristor is sensed and, if an ON condition... | 04/14/1981 |
| 4234836 | Phonograph turntable control system When the user presses a touch-activated switch a first time, a first digital storage device becomes set and furnishes a platter-motor-start signal to the control electronics of the platter drive motor. If the touch-activated switch is pressed a second tim... | 11/18/1980 |
| 4221996 | Hoisting apparatus A hoisting apparatus and a control circuit therefor comprising a reversible electric motor drivingly connected to a hoisting drum for hauling an object up and down. The control circuit includes first and second photosensitive elements each responsive to a... | 09/09/1980 |
| 4219288 | Web former having stop motion control A web former for a textile card or the like in which fibers in an air stream are delivered into a housing divided by a perforated plate into two chambers. The fibers fall to the bottom of one chamber and are formed into a web by three rollers. The plate i... | 08/26/1980 |
| 4205261 | Ultracentrifuge overspeed disk detection system A method and apparatus for detecting the absence of a coded overspeed disk used to indicate the maximum design speed of a rotor which is rotatably connected to a high speed centrifuge. Two donut-shaped coded disks, one mounted on the drive shaft on the ce... | 05/27/1980 |
| 4164120 | Control device for combustion engine The present invention relates to a control device for a combustion engine and particularly to a combustion engine for use with hydrostatic transmissions particularly as used in a fork lift truck.... | 08/14/1979 |
| 4134048 | Control arrangementt for a wheel slip system A wheel slip correction system of the type in which boost current is supplied to the field winding of a d-c electric traction motor driving a slipping wheel from an a-c source in order to correct the slip is provided with a control system which automatica... | 01/09/1979 |
| 4134049 | Circuit for controlling slow speed of stacker elevator motor When a stacker motor slows down before stopping or reversing, it generates an error signal the polarity of which is detected by a sensing circuit which is optically coupled to a motor reversing circuit. If the detected error signal is positive, a first se... | 01/09/1979 |
| 4132935 | Phonograph turntable control system When the user presses a touch-activated switch a first time, a first digital storage device becomes set and furnishes a platter-motor-start signal to the control electronics of the platter drive motor. If the touch-activated switch is pressed a second tim... | 01/02/1979 |
| 4117460 | Sensing device Apparatus for sensing and transmitting physical intelligence is disclosed. In one embodiment the intelligence is transmittable from the sensing device to a remotely positioned, intelligence processing unit. The apparatus taught has particular applicabilit... | 09/26/1978 |
| 4099110 | Proportional control for guidance system A guidance system for positioning a welding apparatus with respect to a seam or joint to be welded by sensing changes in the surface of the seam. The torch of the apparatus is mounted upon and positioned by a motor-driven cross-slide providing both horizo... | 07/04/1978 |
| 4096424 | Electrical circuit for controlling the feed rate of parts Disclosed is a circuit for automatically controlling the feed rate of parts that is particularly adapted for controlling inductive loads. Disposed on either side of a passageway is a light source and a photo-sensing device which emits a signal pulse whene... | 06/20/1978 |
| 4081729 | Low voltage photoswitch A light responsive toy comprising a housing, such as in the form of a mechanical robot, which has a first photocell that is connected to the relay of a double polarity motor which is geared to suitable means to drive the toy along a first path when light ... | 03/28/1978 |
| 4078197 | Proportional control for guidance system A guidance system for seeking, following, and maintaining the position of a welding apparatus with respect to a seam or joint to be welded by sensing changes in the surfaces, hereinafter called reference surfaces, at or adjacent to the seam. The system in... | 03/07/1978 |
