Bizarre Patents
Pet Toilet-Like Water Disk and Food Storage
One pet-friendly inventor patented "a device for watering pets, e.g., a dog or cat." The device, he helpfully noted, "has the general shape of a toilet."
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| Number | Title | Issue Date |
| 5383044 | Systems, methods and apparatus for transmitting radio frequency remote control signals Systems, methods and devices are provided for remotely transmitting a control command to a device having a light sensor for receiving the control command in the form of a light energy signal. A radio frequency remote control signal is produced within an e... | 01/17/1995 |
| 5349386 | Wireless signal transmission systems, methods and apparatus A transmission apparatus and method for transmitting stereo multiplexed audio signals from a received television signal having a horizontal frequency fH are provided. Right and left channel audio signals obtained by demodulation from the receiv... | 09/20/1994 |
| 5345260 | Video transfer device Apparatus which transfers photos, motion picture films and slides to videotape (or other video recording media) by means of a video camera and recorder, such as a camcorder, is operable in three modes: first for film or slide to video transfer using a mov... | 09/06/1994 |
| 5341263 | Apparatus for demagnetizing the magnetic head of a cassette tape recording and/or reproducing device An improved demagnetizer for the magnetic heads of a tape cassette recording and/or reproducing device. The device includes an intermediate gear which is rotated by either one of two hub gears engaging respective drive spindles of the recording and/or rep... | 08/23/1994 |
| 5319716 | Wireless CD/automobile radio adapter This invention discloses a wireless compact disc stereo playback system for use in automobiles. An FM transmitter is employed which is connected at the output of a portable CD player, the FM transmitter thereby producing a stereo FM signal which is transm... | 06/07/1994 |
| 5295058 | Universal DC to DC power converter A pulse width modulated DC to DC voltage converter for producing selectable differential output voltages. A feedback voltage and a selectable error voltage are fed back to the controller to control the pulse width by the difference between them. First and... | 03/15/1994 |
| 5272525 | System for local wireless transmission of signals at frequencies above 900 MHz A wireless local transmission system includes a separate transmitter and receiver. The transmitter converts an audio signal and/or an audio and video signal into a modulated signal within the 902-928 MHz frequency band and transmits the modulated signal t... | 12/21/1993 |
| 4980665 | Remote control repeater A repeater for receiving data transmitted thereto via a first transmission medium, transmitting that data over AC power lines to a remote location and re-transmitting that data from the remote location via a second transmission medium. The data is applied... | 12/25/1990 |
| 4847903 | Wireless remote speaker system A device comprised of separate transmitter and receiver sections, which converts an audio signal into an FM signal, transmits the FM signal over AC power lines, and reconverts the FM signal into an audio signal, which can then be outputted to loudspeakers... | 07/11/1989 |
| 4843509 | Apparatus for demagnetizing the magnetic head of a cassette tape recording and/or reproducing device A simple and inexpensive demagnetizer for the magnetic heads of a tape cassette recording and/or reproducing device includes an intermediate gear which is rotated by either one of two hub gears engaging respective drive spindles of the recording and/or re... | 06/27/1989 |
| 4829570 | Wireless remote speaker system A device comprised of separate transmitter and receiver sections, which converts an audio signal into an F.M. signal, transmits the F.M. signal over A.C. power lines, and reconverts the F.M. signal into an audio signal, which can then be outputted to loud... | 05/09/1989 |
| 4825319 | Cartridge-shaped cleaning device A cleaning apparatus for cleaning the heads of tape player/recorder units in which, when the cleaning apparatus is operably loaded into the unit, movement of the pinch roller and capstan of the unit turns a cleaning element positioned against the head. Tr... | 04/25/1989 |
| 4783870 | Compact disk cleaner Cleaning apparatus for a compact disc comprises a housing having a hingedly coupled base and cover; a drive wheel disposed in the base of the housing rotatably supporting the compact disc and having a first axis of rotation, a rotatable carrier fixed to t... | 11/15/1988 |
| 4750206 | Adapter for TV stereo, SAP and auxiliary signals An adapter is provided for use with a television receiver to detect and decode stereophonic audio signals, SAP signals or auxiliary signals that may be transmitted with the composite television signals. The adapter includes an IF input that is physically ... | 06/07/1988 |
| 4734897 | Cassette adapter for playback device, such as a compact disk player An adapter for enabling the signals produced by one type of playback device, such as a compact disc player, to be reproduced as audio sounds by a cassette player audio system, the latter having a conventional cassette playback deck. The adapter is compris... | 03/29/1988 |
| 4716485 | Cartridge-shaped cleaning device with a rotable cleaning assembly A cleaning apparatus for cleaning the heads of tape player/recorder units in which, when the cleaning apparatus is operably loaded into the unit, movement of a spindle of the unit turns a cleaning element positioned against the head. Transmission of the r... | 12/29/1987 |
| 4654917 | Compact disc cleaner Cleaning apparatus for a compact disc comprises a housing, a rotatable carrier disposed in the housing, a cleaning pad fastened to the carrier for contacting the surface of the compact disc, a drive wheel for driving the carrier to rotate the latter about... | 04/07/1987 |
| 4633495 | TV stereo adapter A television stereo adapter is provided for use with a television receiver to detect and decode stereophonic audio signals that may be transmitted with the composite television signals. The adapter includes an IF pick-up that is physically separate from t... | 12/30/1986 |
| 4628361 | Video synchronizing signal separator An improved video synchronizing signal separator for separating luminance and synchronizing signal components, respectively, from a composite video signal. Separate luminance and synchronizing channels are supplied with the composite video signal, each ch... | 12/09/1986 |
