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 |
| 7514931 | Solar simulator and method for driving the same To provide a solar simulator which has a plurality of xenon arc lamps as a light source, in which a predetermined amount of light is stably obtained from each of the xenon arc lamps so that constant irradiance over a test plane is ensured. The solar simulator compri... | 04/07/2009 |
| 7276911 | Detection of malfunctioning bulbs in decorative light strings A system for locating a malfunctioning bulb in a decorative light string uses an antenna that produces an output signal corresponding to the strength of the electric field produced by a portion of the light string near the antenna. An amplifier is coupled to the ant... | 10/02/2007 |
| 7145343 | Repair device for decorative light shunt A repair device for fixing a malfunctioning shunt across a failed filament in a light bulb in a group of series-connected miniature decorative bulbs includes a high-voltage pulse generator producing one or more pulses of a magnitude greater than the standard AC powe... | 12/05/2006 |
| 7119707 | Circuit for providing electrical current to a bicycle device A circuit for providing electrical current to an electrically operated bicycle device comprises a current supply circuit that supplies DC current from the power supply to the bicycle device along a current path and a current limiting circuit that includes an active ... | 10/10/2006 |
| 7049778 | Inverter control apparatus and inverter control method An interrupt signal is generated at each of rising timings of PWM signals which are produced on the basis of phase-shifted triangular wave carrier signals for phases, and voltage command values for the phases. At timings of the interrupt signals, A/D conversion of m... | 05/23/2006 |
| 7042547 | Method of repairing pit defect and salient defect of electrode pattern An inspection process is performed to determine defects of an electrode pattern. A first repairing process is performed to fill the pit part, and a second repairing process is performed to remove the salient part. The first repairing process utilizes a conductive pa... | 05/09/2006 |
| 6972755 | Driver circuit for a display device The invention relates to a device for driving display devices and to a display device that is provided with a driver circuit. The invention also relates to a method of testing driver circuits. Driver circuits of this kind have a decisive effect on the quality of the... | 12/06/2005 |
| 6972570 | Quick-connect ballast testing and monitoring method and apparatus A monitoring and testing apparatus for quick-connection to a fluorescent lamp assembly includes a test circuit positioned in a casing and having wire receiving clips for quick receipt and release of wires from a ballast and lamp, whereby to electrically connect the ... | 12/06/2005 |
| 6917164 | Light signaling device related to the operating state of a system A light signaling device related to the operating state of a system has at least one light and circuits of detection of a failure of this or these lights, in which each light comprises m branches in parallel each composed of n light emitting diodes in series, and a ... | 07/12/2005 |
| 6870371 | Method and apparatus for examining plasma display panel electrodes using frequency characteristics The present invention relates to a method and apparatus for examining Plasma Display Panel (PDP) electrodes using frequency characteristics, which can rapidly examine the PDP electrodes for defects and detect the positions thereof using frequency characteristics of ... | 03/22/2005 |
| 6777942 | Operating device for gas discharge lamps with detection of filament breakage Disconnection device for an electronic operating device for gas discharge lamps. The filament breakage of a lamp is evaluated by detecting the current through a component which flows through the filaments. This is performed either by detecting this current with the ... | 08/17/2004 |
| 6600425 | Method and apparatus for detecting and recording episodic overloads in a circuit A apparatus for recording information on power surges in an electrical or electronic system is disclosed. The apparatus has a gas discharge tube connected between an input line of the electrical or electronic circuit protected and ground. The gas discharg... | 07/29/2003 |
| 6559591 | Removable grounding strip for anti-reflective films on cathode ray tubes and method of using same A non-adhesive, conductive strip is used to provide an electrical ground path between a solder electrode on the anti-reflective film of a cathode ray tube and the reinforcement or heat shrinkage band on the tube. The conductive strip is preferably held in... | 05/06/2003 |
| 6538448 | Determining remaining operating life of fluorescent lamp A method for determining the remaining operating life of a fluorescent lamp comprising cathodes, when the fluorescent lamp is a part of a fluorescent lamp circuit, which in addition to the fluorescent lamp includes a ballast, for example a capacitor and a... | 03/25/2003 |
| 6480001 | Repair device for decorative light shunt A repair device for fixing a malfunctioning shunt across a failed filament in a light bulb in a group of series-connected miniature decorative bulbs includes a piezoelectric pulse generator producing one or more pulses of a magnitude greater than the stan... | 11/12/2002 |
| 6066951 | External light tester An apparatus for testing the exterior lights on a vehicle includes a controller supported by the vehicle and adapted to turn on the exterior lights in response to an actuation signal. A remote control device is adapted to provide the actuation signal from... | 05/23/2000 |
| 5989824 | Apparatus and method for lysing bacterial spores to facilitate their identification Bacteria cells and/or spores are collected and concentrated to form a specimen that is lysed using an ionized fluid to facilitate identification of the bacterial cells or spores by tests performed on the DNA and RNA contained therein. An impact collector ... | 11/23/1999 |
| 5973498 | EDM with jump motion detecting reactive force An electric discharge machine for machining a workpiece by an electric discharge by supplying a machining fluid to a gap between an electrode and the workpiece and supplying pulses to the workpiece while providing the electrode with a jump motion, said ju... | 10/26/1999 |
| 5952832 | Diagnostic circuit and method for predicting fluorescent lamp failure by monitoring filament currents A diagnostic circuit monitors filament currents in hot cathode fluorescent lamps for detecting when the filament erodes to the point of breaking. When such a filament failure is detected, information is processed and a request is sent to replace the lamp ... | 09/14/1999 |
| 5744961 | Lamp disconnection detecting device for identifying a specific lamp which has become disconnected A lamp disconnection detecting device includes a magnetic core with a gap; a plurality of detecting coils the number of turns of which are different from one another and are proportional to 2n (where n=0, or positive integers), and a magnetic r... | 04/28/1998 |
| 5565781 | Device for detecting the malfunctioning of a load such as a magnetron A device for detecting the malfunctioning of a magnetron which operates at start-up with a high power setting P0, and which is connected to the terminals (21, 22) of the secondary winding (19) of a high-voltage transformer (8). This device incl... | 10/15/1996 |
| 5528147 | Apparatus for detecting gas discharge lamp faults A capacitor (16) coupled in series with series coupled gas discharge lamps (11 and 12) will effectively block direct current from flowing through the capacitor (16). A detector circuit including a high impedance resistor (17) and transistor (18) provide a... | 06/18/1996 |
| 5202636 | Method of non-destructive lamp testing by sensing light output A system for testing electrical lamps includes a hollow cylinder. Lamps are placed in the hollow cylinder and the light emitted from the lamp is focused onto a phototransistor by a focusing lens. The output of the phototransistor is measured against the e... | 04/13/1993 |
| 5179339 | Holiday light bulb tester with light bulb socket insertable probes A light bulb tester includes a body having first and second opposite ends. A pair of parallel cylindrical electrically-conductive wire probes on the first end are spaced apart a distance of from about 4.5 mm to about 6.0 mm, said distance including the wi... | 01/12/1993 |
| 5089749 | Method and apparatus for measuring output of a heat lamp for an optical TLD reader A method and apparatus for measuring and adjusting output of a heat lamp for an optical TLD reader includes an optical system which matches the optical system of the TLD reader, means for supporting a heat lamp to be calibrated, and an element plate havin... | 02/18/1992 |
| 5086276 | Method of determining condensate location in an HID lamp The present disclosure describes a method for determining the condensate location within an HID lamp. The method involves monitoring current and voltage waveforms during the glow phase of lamp starting. If the voltage drop during the glow phase is low wit... | 02/04/1992 |
| 5047721 | Faulty lamp tester A detector (42) is provided for testing a string of lamps (12) that are connected to a wire (14) in a series configuration. The detector (42) has a probe (44) disposed on the end thereof with a cavity (56) formed therein. The cavity (56) is operable to be... | 09/10/1991 |
| 4695803 | HID lamp ballast tester A ballast tester for HPS lamp circuits includes a body of insulating material, a base which fits the lamp socket, a single wire connected to the base and extending through the body forming a loop, and a hole in the body within the loop to receive a clamp-... | 09/22/1987 |
| 4673884 | Circuit for measuring the anode current in an X-ray tube A circuit for measuring anode current in an X-ray tube having an anode and a heater electrode both operable at high voltage, includes a heater transformer generating current pulses with a timewise constant first pulse repetition frequency and an adjustabl... | 06/16/1987 |
| 4550273 | Eight electrode optical readout gap A protective device for a plurality of electrical circuits includes a pluity of isolated electrodes forming a gap with a common electrode. An output signal, electrically isolated from the circuits being monitored, is obtained by a photosensor viewing the... | 10/29/1985 |
| 4453128 | Digital display testing circuit A circuit for testing a segment of a digital display comprising a segment of a digital display having a cathode filament for conducting electrical current and for emitting electrons, and detecting means connected to the cathode filament for detecting elec... | 06/05/1984 |
| 4336492 | Apparatus for testing an hermetic seal in a glass cathode ray tube An apparatus for testing an hermetic, glass-like frit seal interposed between the funnel and faceplate of an in-process cathode ray tube is disclosed. A discontinuity in the hermetic seal causes a high voltage breakdown in the seal when a test voltage is ... | 06/22/1982 |
| 4301409 | Solar cell anomaly detection method and apparatus A method is provided for detecting cracks and other imperfections in a solar cell, which includes scanning a narrow light beam back and forth across the cell in a raster pattern, while monitoring the electrical output of the cell to find locations where t... | 11/17/1981 |
| 4145142 | Apparatus for and method of testing direct-view image intensifiers A beam from a test image is split into two paths. The beam in one path may pass through broad-band or narrow-band attenuators to the intensifier being tested. A portion of the beam in the other path passes through a hole in a reflector to the eye of a vie... | 03/20/1979 |
| 4097793 | X-ray testing system An X-ray tube test system comprising signal processing circuitry including means for converting an analog signal representative of anode current into a train of pulses having an instantaneous frequency proportional to corresponding instantaneous amplitude... | 06/27/1978 |
