Bizarre Patents
A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 7353560 | Proximity brush unit apparatus and method An apparatus is provided for producing a wet region and corresponding dry region on a wafer. A proximity brush unit delivers fluids with a rotatable brush to produce the wet region on the wafer. As the proximity brush unit moves in a selected scan method across the ... | 04/08/2008 |
| 7305572 | Disk drive input sequencing for staggered drive spin-up Disk drive spin-up is staggered to reduce peak power requirements. Spin-up of the drives is controlled by selectively delaying voltage inputs to the disk drives. Alternately, spin-up of the drives is controlled by staggering the timing of communications to the disk ... | 12/04/2007 |
| 5621718 | Compact disc playing mechanism having first and second operating positions A compact disc playing mechanism includes a body with respect to which at least first and second horizontal positions are provided for placing therein compact discs, a pick-up mechanism for playing the compact discs, and a unitary moving mechanism adapted... | 04/15/1997 |
| 5130973 | Disk player locking mechanism whose actuator is energized only during unlocking operation A disk player including a pickup unit having a locking pin, and a locking mechanism which engages with the locking pin. The locking mechanism comprises a locking means for engaging and holding the locking pin when an actuator is de-energized, and an unloc... | 07/14/1992 |
| 4694449 | Record player with a square, viscously damped pick-up arm lift rod A lifting device, for moving a pick-up arm upwards and downwards, has a lift rod guided by a guide element formed integrally with the deck plate. The lift rod has a pair of adjoining planar walls intersecting each other at an angle, and engaging a corresp... | 09/15/1987 |
| 4574372 | Locking device for record player apparatus A laser disk record player particularly adapted for mobile applications such as in portable players and automobile mounted players. The player is provided with locking means for preventing free movement of the laser carrying scanning assembly when the pla... | 03/04/1986 |
| 4552535 | Mechanical assembly for audio-visual teaching machines An improved audio-visual machine for projecting visual information segments carried by a transparency holder in an audio-visual cartridge, and for reproducing corresponding narrative and control information recorded on a movable storage medium carried by ... | 11/12/1985 |
| 4512010 | Apparatus for controlling linear tracking arm in record player A control system for a linear tracking arm in a record player. A signal representative of a tracking error angle of the arm is, after A/D conversion, supplied to a microprocessor for producing a control signal which controls an arm drive device so that th... | 04/16/1985 |
| 4493069 | Phonograph A phonograph cover is coupled to a tone arm assembly such that movement of the cover to its open position automatically retracts the needle of the tone arm assembly from the record in any selected position of the tone arm assembly on the record playing po... | 01/08/1985 |
| 4486875 | Video disc player having lifter driving circuit The stylus lifter driving circuit gradually lowers the stylus arm until the stylus contacts a turntable-disposed record. Once the stylus/record engagement is detected, the lifter support bracket rapidly moves away from the stylus arm to prevent stylus bou... | 12/04/1984 |
| 4482328 | Audio-visual teaching machine and control system therefor An improved audio-visual apparatus for projecting visual information segments carried by a transparency holder in an audio-visual cartridge, and for reproducing corresponding narrative and control information recorded on a movable storage medium carried b... | 11/13/1984 |
| 4470130 | Apparatus for lifting and lowering a linear tracking tone arm in a record player A linear tracking tone arm having a stylus is pivotably mounted on a carriage slidably movable along a guide rod and has a hook extending in operative engagement with a pin on a swing arm slidably movable with the carriage along the guide rod. The guide r... | 09/04/1984 |
| 4460991 | Pickup device for disc player A pickup device for a disc player includes a pickup arm pivotally mounted at one end thereof for movement between upper and lower positions. The pickup arm is horizontally movable about the one end thereof. A drive device is responsive to a driving signal... | 07/17/1984 |
| 4453244 | Record player with spring-assisted pick-up arm return A record player having a pick-up arm which is automatically moved to the rest position by a spring, the energy necessary for returning the arm being stored by the lowering device of the arm. A rotating cam which lowers the arm also moves one end of an ove... | 06/05/1984 |
| 4453245 | Apparatus for detecting position of a reproducing transducer in a rotary recording medium reproducing apparatus An apparatus for detecting position of a reproducing transducer in a rotary recording medium reproducing apparatus which reproduces an information signal recorded in a rotary recording medium by a reproducing transducer which is transferred towards the ra... | 06/05/1984 |
| 4445210 | Tone arm mechanism for a record player In a tone arm elevating mechanism, an elevator, which is arranged to raise and lower the tone arm, is driven by a solenoid, and the mechanism comprises a first rotary lever contactable with a portion of the elevator and a second rotary lever arranged to b... | 04/24/1984 |
| 4437181 | Automatic record playing apparatus having a tone arm position detecting device A record disc playing apparatus has a tone arm position detecting device which comprises a position detection part comprising a plurality of reading elements aligned in line, a code part comprising a plurality of rows of code patterns shifted in the direc... | 03/13/1984 |
| 4434482 | Tone arm pick up system A tone arm system for a high fidelity record player is provided having servo-controlled record warp compensation means. One or more feedback loops are employed to apply a variable force vertically and optionally, laterally, to the tone arm in response to ... | 02/28/1984 |
| 4429380 | Braking device for a pickup arm of a disk player or the like A braking device for providing a braking action to the horizontal swinging movement of a pickup arm of a record player and the like. The device comprises a brake for applying the braking action and an actuator for actuating the brake, when the pickup arm ... | 01/31/1984 |
| 4423500 | Stylus lifting/lowering actuator with air damping A lifting-lowering assembly for a stylus arm employs two flat portions having a pivot axis in the vicinity of the intersection of the two portions, a stylus arm rest on the first portion, and, an upwardly extending member on the second portion. The upward... | 12/27/1983 |
| 4397015 | Apparatus for moving a tone arm In a record player, the movement of the tone arm is controlled by a select plate operated by a lever which moves the plate to a position corresponding to a record size. Adjacent the select plate is a C-shaped lever which cooperates with a rotary member. T... | 08/02/1983 |
| 4356560 | Linear-tracking pick-up arm drive assembly for audio or video disc player A linear-tracking pick-up arm drive assembly for an audio or video disc player, comprising a linear motor including a magnet-carrying movable unit movable on and along a pair of spaced, parallel horizontal guide bars, and a pair of horizontally elongated,... | 10/26/1982 |
| 4346465 | Automatic record player An extremely simple record changer mechanism is provided wherein only two members interconnect the tone arm subassembly with the main cycling gear in the spindle area of the changer. One of these members is employed to lift and lower the tone arm and the ... | 08/24/1982 |
| 4342108 | Variable speed tone arm control system A tone arm control system includes first and second manually operated keys for providing input signals to a control circuit. The control circuit detects which one of the keys is operated and drives a vertical motor in the tone-arm upward direction and sub... | 07/27/1982 |
| 4301528 | Tone arm mechanism A tone arm system for a record player is provided having servo-controlled record warp compensation means including a moving coil motor for driving the tone arm vertically and a moving magnet motor for driving the tone arm horizontally in response to servo... | 11/17/1981 |
| 4241926 | Tone arm assembly Apparatus for controlling a tone arm is provided with a horizontal drive motor for moving the tone arm in the horizontal direction, a horizontal velocity detector connected to the same rotating shaft as the tone arm so as to move concurrently with both th... | 12/30/1980 |
| 4240641 | Record player Apparatus for adjusting and displaying the stylus pressure exerted on a record disc by a stylus carried by a tone arm in a record playing device comprises a vertical drive motor for bi-directionally driving the tone arm in the vertical direction, an adjus... | 12/23/1980 |
| 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 |
| 4204687 | Tone arm drive device A tone arm drive device, comprises a tone arm drive mechanism driven by an electric motor rotatable in forward and reverse directions to vertically move and horizontally swing a tone arm. A first flip-flop circuit is triggered by signals instructing eleva... | 05/27/1980 |
| 4200295 | Control mechanism for lifting, lowering and swinging record player tonearm A record player tonearm A may be swung about a shaft 3 and raised and lowered by an elevation plate 8 secured to a shaft 8a. The rounded lower end of shaft 8a serves as a follower on a cam 10 rotated about a shaft 9 by a planetary gear 13 mounted on a sha... | 04/29/1980 |
| 4184688 | Tone arm assembly A tone arm assembly for record players has first and second electro-magnetic motors operable for swinging a tone arm in vertical and horizontal directions, respectively, in respect to a record disc on a turntable, and a control circuit for controlling the... | 01/22/1980 |
| 4184687 | Electrical control system for the movement of the pickup arm of a disc-record player Electrical equipment for controlling an electric motor for the horizontal movement of the pickup member of a disc-record gramophone towards and away from the center of the gramophone turntable comprises position-selector means which, when set to any one o... | 01/22/1980 |
| 4175751 | Toggle mechanism for video disc player A video disc player includes a turntable for centering and rotatably supporting a record for playback. A pickup stylus for recovering information stored on a turntable-supported record during playback is mounted in a carriage. A play belt is provided for ... | 11/27/1979 |
| 4176378 | Signal pickup arm lifting/lowering and groove skipper apparatus A pickup arm pivotally coupled to a housing support at one end thereof, remote from a stylus carrying end, is also coupled to the housing near its other end by means of bimorph elements attached together at right angles. The bimorph elements are arranged ... | 11/27/1979 |
| 4171817 | Control device for controlling the movement of pickup arm of record player or the like A control device for controlling the movement of the pickup arm of a record player or the like. This device comprises: a movable member; a motor for driving this movable member; a relative position detecting means for optically detecting the horizontal re... | 10/23/1979 |
| 4166625 | Automatic stop for turntable tone arm A phonograph turntable having a tone arm cueing mechanism is provided with a switch arrangement for activating the cueing mechanism and stopping the phonograph when the tone arm reaches the end of the information bearing groove of a record. The switch arr... | 09/04/1979 |
| 4166621 | Programmable record changer A programmable phonograph record changer which provides automatic sound track selection for each of a plurality of records played sequentially by the record changer. The record changer includes an electro-optic scanner mounted on the pickup arm for sensin... | 09/04/1979 |
| 4148492 | Record players The present invention relates to an improvement in record players comprising a turntable on which the disc is placed and a tone arm mounted to pivot at one of its ends and carrying a pick-up at its other end, said arm normally resting in stop position on ... | 04/10/1979 |
| 4139200 | Apparatus for supporting a pickup arm on a disc player A disc player in which a servo-driven carriage supporting a pickup arm assembly via a block mounted thereon is movable along a linear path substantially normal to an imaginary radial line of a disc turntable, the level of the block being adjustable as req... | 02/13/1979 |
| 4138121 | Tone arm assembly A tone arm assembly for record players having a first motor for rotating a tone arm in the vertical direction, a second motor for rotating the tone arm in the horizontal direction with respect to a record disc, respectively, a detector for detecting low f... | 02/06/1979 |
