Bizarre Patents
A hand wearable body squeegee comprising a glove portion, a concave squeegee band, and a linear squeegee band.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7375471 | Charging circuit A charging circuit has a battery 12, switching element 14, and resistor 16 for current detection arranged on the primary side of transformer 10. Diode 18 and capacitor 20 for storing electric power are arranged on the second... | 05/20/2008 |
| 7227314 | Voltage equalization method and apparatus for low-voltage lighting systems A method and apparatus to equalize the voltage across each light bulb in a low-voltage lighting system, commonly found in the yards of private homes and businesses. The present invention consists of a power compensation element that is inserted in-line with each lig... | 06/05/2007 |
| 5485060 | Electronic reactor for the supply of discharge lamps with an oscillator circuit to limit the crest factor and to correct the power factor The electronic reactor for discharge lamps (L) comprises a bridge rectifier (5) connected to an alternating voltage source (3); a half-bridge with two controlled switching means (11, 13) made alternately conducting to connect the said lamp (L) and the sai... | 01/16/1996 |
| 5434476 | Circuitry for operating fluorescent lamps with no stroboscopic effects Circuitry is disclosed for operating with no stroboscopic effects at least three fluorescent lamps connected to a single source of single phase alternating voltage. In order to suppress the stroboscopic effects, the first lamp circuit (1) is connected in ... | 07/18/1995 |
| 5349270 | Transformerless fluorescent lamp operating circuit, particularly for a compact fluorescent lamp, with phase-shifted inverter control To eliminate the necessity for a saturated or air gap inductance to provide feedback circuit for a self-exciting oscillator including two active electronic switches (T1, T2) , for example MOSFETs, an auxiliary winding (HW1, HW2, . . . HW11) is inductively... | 09/20/1994 |
| 5339004 | Regulating ballast with power factor correction for high-frequency gaseous discharge lamps A power regulating ballast for gaseous discharge lamps operated from a source of high-frequency power incorporates a method in an apparatus which utilizes a distributed capacitance in combination with an inductor and includes a current feedback derived fr... | 08/16/1994 |
| 5309065 | Voltage doubler ballast system employing resonant combination tuned to between the second and third harmonic of the AC source A ballast circuit system provides for efficient starting and operation of high voltage discharge lamps using a common 120 volt AC power source. As a result of this improved ballast circuit system, the necessary high voltage is generated from a normal 120 ... | 05/03/1994 |
| 5072156 | Ballast circuit with means to disconnect power factor capacitor An arrangement for use with gaseous discharge lamp circuits having power factor capacitors in which the capacitor is disconnected from the circuit when the lamp is not drawing current.... | 12/10/1991 |
| 4958143 | Synchronized pulse-enhanced dual light source An intermittent low intensity light source that is switched on by a drive signal is enhanced by a high intensity light source. The high intensity light source is coupled with the low intensity light source so that at least some light from both sources is ... | 09/18/1990 |
| 4757238 | Low voltage fluorescent lighting system This invention is directed to an improved low voltage fluorescent lighting system having two elongated fluorescent lamps. The invention provides an improved simple switching system which allows one or both lamps to be turned on. The improved switching sys... | 07/12/1988 |
| 4717861 | Electronic flash device An electronic flash device fires one or a pair of flash tube sequentially for continuous shooting photography with a motor driven photographic camera, for substantially continuous illumination or for sequential illuminations at intervals, as well as fire ... | 01/05/1988 |
| 4701673 | Ballast adaptor for improving operation of fluorescent lamps A ballast adaptor circuit which makes it possible to convert a conventional two lamp rapid start T12 ballast for operation of two T8 fluorescent lamps and by means of a simple modification that does not require cutting wires or extensive rewiring of the T... | 10/20/1987 |
| 4675576 | High-reliability high-efficiency electronic ballast An electronic ballast is adapted for operation on regular 120 volt/60 Hz power line voltage and comprises: (i) full bridge rectifier means, (ii) ripple filter means consisting of an LC circuit series-resonant at 120 Hz, (iii) self-oscillating inverter mea... | 06/23/1987 |
| 4631450 | Ballast adaptor for improving operation of fluorescent lamps A ballast adaptor circuit which makes it possible to convert a conventional two lamp rapid start T12 ballast for operation of two T8 fluorescent lamps and by means of a simple modification that does not require cutting wires or extensive rewiring of the T... | 12/23/1986 |
| 4623824 | Controlled high voltage generator A highly efficient circuit for converting a low level DC voltage to the high voltage necessary for energizing a flash lamp. The circuit is very small and non-complex, it is portable and is quickly recharged, particularly being adaptable for emergency flas... | 11/18/1986 |
| 4499533 | Power supply apparatus A power supply apparatus is structured such that the output of an alternating current voltage source (1) is connected to the input of a rectifying circuit (2), a series connection of a first smoothing capacitor (3a), a diode (15) and a second smoothing ca... | 02/12/1985 |
| 4496880 | Fluorescent lamp ballast A ballast for energizing a pair of fluorescent lamps in response to power supplied by an AC line, includes a capacitor connected between one of a pair of heater winding leads which connect to a filament contained in one of the fluorescent lamps, and one o... | 01/29/1985 |
| 4485336 | Electronic flash device In an electronic flash device for use in a still camera, a calculation circuit means calculates a ratio of the amounts of light to be emitted by a plurality of flash light tubes on the basis of color temperature information and control circuit means contr... | 11/27/1984 |
| 4464608 | Circuit for controlling optical apparatus such as an ophthalmoscope A circuit for operating and controlling optical apparatus for viewing an object and making a photographic record thereof and having an illuminating light source and a photoflash light source, the circuit including a pulse width modulator for operating the... | 08/07/1984 |
| 4415840 | Combined flash tube and quench tube apparatus Discharge apparatus comprises a xenon-filled glass envelope with a common cathode that divides the envelope into two separate gas-containing chambers. Respective anodes are provided in each chamber to cooperate with the common cathode. By placement of the... | 11/15/1983 |
| 4404498 | Multiplex strobe light A multiplex strobe light in which several ionized gas flash tubes are fed in parallel from a common power and trigger circuit. The common power circuit has a capacitor which is connected across a charging voltage and all of the flash tubes. The common tri... | 09/13/1983 |
| 4392084 | Sustainer circuit for plasma display panels Circuitry for selectively sustaining a gaseous discharge display panel to splay selected information which circuitry permits the use of a single power supply.... | 07/05/1983 |
| 4246514 | Energy-saving electronic strobe flash apparatus having dual flashtubes Electronic strobe flash apparatus has first and second flashtubes which are fired alternately and repeatedly to produce a composite, extended light flash. A start pulse triggers the first flashtube to cause a first normally charged capacitor to discharge ... | 01/20/1981 |
| 4203052 | Solid state ignition system A solid state ignition system for generating high frequency and high energy electrical pulses, the system providing improved performance under varying line voltage conditions, improved voltage regulation, and reduced power dissipation, and being effective... | 05/13/1980 |
| 4185231 | High efficiency ballast system for gaseous discharge lamps Electrical lamp ballast system for starting and operating fluorescent lamps with improved efficiency and safety. System includes high leakage reactance autotransformer having primary and secondary windings, and a ballast capacitor connected in series with... | 01/22/1980 |
| 4185232 | Multiple flashlamp operating circuit A DC circuit for efficiently operating two arc discharge flashlamps. The lamps are parallel connected across a single supply storage capacitor, and a single trigger capacitor is employed in connection and the two alternately activated trigger sources for ... | 01/22/1980 |
| 4142130 | Multiflash operating circuit directly coupled to AC source A circuit for efficiently operating two arc discharge flashlamps. The lamps are series connected and directly coupled through series circuitry across an alternating current (AC) source. A storage capacitor is connected between the junction of the lamps an... | 02/27/1979 |
| 4117377 | Circuits for starting and operating ionized gas lamps The specification discloses a low loss ballast system for reducing the electrical power required to operate fluorescent and other ionized gas lamps as well as several unique starting and operating circuits which can be used in combination with conventiona... | 09/26/1978 |
| 4087724 | Flash array provided with at least two combustion flash lamps A flash array provided with a number of high voltage combustion flash lamps which are ignited by means of a piezo element. The flashing of two lamps at the same time is prevented by means of melting strips. According to the invention the igniting pulse for a s... | 05/02/1978 |
| 4037136 | Circuit arrangement for igniting at least one gas discharge flash lamp A circuit arrangement for igniting flash tubes, without using an ignition electrode, and having two main electrodes which are supplied with an ignition pulse parallel to a flash capacitor and an electronic switch, employs an electronic switch which also c... | 07/19/1977 |
| 3973168 | Wiring circuits and method for multiple flash-beacons A plurality of flash units mounted as warning, navigational or signal beacons are driven from a remote energy storage power converter with reduced number and or size of discharge current cables by common use of cables combined with sequential flashing suc... | 08/03/1976 |
