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| Number | Title | Issue Date |
| 4743981 | System for synchronizing audiotape and videotape machines A method and apparatus for regulating the speed of a multitrack audiotape machine while recording audio from a multitrack audiotape onto a videotape. The speed of the audiotape machine is regulated by correlating a video synchronization signal previously ... | 05/10/1988 |
| 4569577 | Photographic animation transfer process A photographic process is provided for transferring an animation sketch or the like from paper onto a transparent cell for use in making animated motion pictures and the like. The animation sketch on paper is photographed to produce a negative of the sket... | 02/11/1986 |
| 4557570 | Camera assembly for three-dimensional photography A camera assembly is provided for photographing a scene or subject from two slightly different positions with controlled three-dimensional effects for subsequent viewing, for example, with the assistance of special eyeglasses having appropriately filtered... | 12/10/1985 |
| 4312276 | Turntable joining tracks with linear induction motor control A turntable bearing tracks at a switching point in an amusement ride course, or other vehicular path having tracks, utilizes two linear induction motors, one for rotating the turntable and one for latching the turntable at selected rotational positions. T... | 01/26/1982 |
| 4283766 | Automatic camera control for creating special effects in motion picture photography An automated camera control drives a video or motion picture camera along multiple independent axes of movement to position the camera for recording an image of a field of view, typically focused upon a model or artwork in special effects motion picture p... | 08/11/1981 |
| 4257612 | Optoelectronic amusement device An optoelectronic amusement device has a transmitter that emits pulses of a controlled pulse train duration, pulse rate and pulse width, and at a frequency of at least about 1800 hertz. A receiver is employed which is sensitive to the pulse rate and frequ... | 03/24/1981 |
| 4177589 | Three-dimensional animated facial control An artificially animated face with three-dimensional facial features formed of a flexible material is provided with remotely actuable concealed mechanisms for manipulating the jaw, rounding the mouth, and drawing the lower lip inward relative to the upper... | 12/11/1979 |
| 4150824 | Optoelectronic communications system An optoelectronic communications system in which the transmitter has controlled pulse train duration, pulse rate and pulse width, and a receiver which is sensitive to the pulse rate of the transmitter. The transmitter is incorporated into a firearm replic... | 04/24/1979 |
| 4103892 | Light actuated target control for an amusement device A target control is provided for an amusement device to propel a target in translational motion along a predetermined path and to accelerate the movement of the target when it is struck by a beam of radiation. Preferably, in addition to accelerating the t... | 08/01/1978 |
| 4054290 | Light gun having selectable modulated infrared output A light gun for use on moving vehicles produces continuous visible light for aiming purposes and selectable modulated infrared frequencies for actuating a target. The optical path through the gun is transparent to visible light while the infrared portion ... | 10/18/1977 |
| 4050385 | High capacity passenger transport apparatus There is disclosed a high capacity passenger transport apparatus which may be employed as a ski lift including a high speed main cable ascending up a ski run and driven at high speeds. A pair of first and second shuttle tracks lead from the downhill run o... | 09/27/1977 |
| 4029019 | Track for vehicles A track for vehicles which is particularly adapted for amusement park rides having a plurality of banked curves. The track comprises a pair of track rails connected to a lower backbone pipe. In curved sections, the plane of the track rails extends at vary... | 06/14/1977 |
| 3974778 | Speed control system A speed control system for controlling the speed of a vehicle traveling on a guideway comprising, in combination, a plurality of linear motor windings disposed along the guideway, a corresponding secondary mounted on the vehicle for inductively interactin... | 08/17/1976 |
| 3973746 | Collision avoidance system A collision avoidance system adapted for railroad use comprising a track having connected thereto a plurality of first signal transmitters exciting the track by a first control signal within a first frequency bandpass range and a plurality of second signa... | 08/10/1976 |
| 3947741 | Boat guidance system A guidance system for controlling the path of a boat comprising a first conductor disposed below the surface of water in a first elongated loop and connecting at the terminals thereof across an A.C. source of electrical signal and a second conductor drive... | 03/30/1976 |
