Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 8183716 | Bipolar pulse generators with voltage multiplication A bipolar pulse generator includes two, two-conductor transmission lines coupled together with a load positioned between the two transmission lines. Each conductor of a transmission line we define as a segment. Two segments of one transmission line are charged and s... | 05/22/2012 |
| 8183717 | High power bipolar pulse generators A bipolar pulse generator is implemented in a simple structure while providing a high efficiency design having a relatively low total size, while still allowing access by fibers used to control a photoconductive switch that activates the generator. The bipolar pulse... | 05/22/2012 |
| 8125106 | Bipolar pulse generators with voltage multiplication A bipolar pulse generator includes two, two-conductor transmission lines coupled together with a load positioned between the two transmission lines. Each conductor of a transmission line we define as a segment. Two segments of one transmission line are charged and s... | 02/28/2012 |
| 8093760 | Bipolar pulse generators with voltage multiplication A bipolar pulse generator includes two, two-conductor transmission lines coupled together with a load positioned between the two transmission lines. Each conductor of a transmission line we define as a segment. Two segments of one transmission line are charged and s... | 01/10/2012 |
| 8093761 | Bipolar pulse generators with voltage multiplication A bipolar pulse generator includes two, two-conductor transmission lines coupled together with a load positioned between the two transmission lines. Each conductor of a transmission line we define as a segment. Two segments of one transmission line are charged and s... | 01/10/2012 |
| 8004120 | High power bipolar pulse generators A bipolar pulse generator is implemented in a simple structure while providing a high efficiency design having a relatively low total size, while still allowing access by fibers used to control a photoconductive switch that activates the generator. The bipolar pulse... | 08/23/2011 |
| 7986060 | Bipolar pulse generators with voltage multiplication A bipolar pulse generator includes two, two-conductor transmission lines coupled together with a load positioned between the two transmission lines. Each conductor of a transmission line we define as a segment. Two segments of one transmission line are charged and s... | 07/26/2011 |
| 7977820 | Ultrasound transmit pulse generator A ultrasound transmit pulse waveform generator for driving a piezoelectric transducer in medical ultrasound imaging, nondestructive testing (NDT) ultrasound imaging applications, includes a capacitor, switching programmable current sources, and a power amplifier. | 07/12/2011 |
| 7960868 | Methods for generating high voltage pulses with a transmission line A method of generating an electrical pulse to an output load is disclosed. The method includes the steps of establishing a first voltage on a first electrical conductor throughout an electrical length of the first electrical conductor, initiating the propagation of ... | 06/14/2011 |
| 7915763 | Systems for generating high voltage pulses with a transmission line A system is disclosed for generating a rectangular pulse with a transmission line, the pulse having a duration of twice the electrical length of the line and a voltage of up to twice the charge voltage. The system includes a voltage source, a switching means, and an... | 03/29/2011 |
| 7902695 | Bipolar pulse generators with voltage multiplication and pulse separation A bipolar pulse generator includes a pair of two-conductor transmission lines coupled together with a load positioned between the two transmission lines. Two segments of one transmission line are charged and switchably coupled to two segments of the other transmissi... | 03/08/2011 |
| 7884504 | Transmission line based high voltage pulse generator A high voltage, fast pulse rise/fall time, and high repetition rate pulse generator solves the high pulse repetition rate limitations associated with RF power amplifiers and gap switch type pulse generators. The pulse generator employs a transmission line architectu... | 02/08/2011 |
| 7868485 | Pulsed power supply with current ripple reduction A pulsed power source minimizes current ripple disturbance in a main power supply by dividing the pulsed load into a plurality of pulsed sub-loads. The pulsed power source includes a plurality of pulsed load power supplies, each pulsed load power supply receiving ch... | 01/11/2011 |
| 7834482 | Apparatus and method for generating fine timing from coarse timing source An apparatus for generating a pulse at a particular time dictated by an input. The apparatus may comprise an offset voltage generator for generating an offset voltage that is a function of the input, a current generator for generating a current, a ramp voltage gener... | 11/16/2010 |
| 7830040 | Coiled transmission line pulse generators Methods and apparatus are provided for fabricating and constructing solid dielectric “Coiled Transmission Line” pulse generators in radial or axial coiled geometries. The pour and cure fabrication process enables a wide variety of geometries and form factors. Th... | 11/09/2010 |
| 7741735 | Method and apparatus for generating short duration high voltage energy pulses using integrated generators and antennae A method and a small profile apparatus for generating high voltage impulses. Integration of the radiating antenna with the impulse source structure makes possible the small size of the present invention. ... | 06/22/2010 |
| 7649284 | High-voltage pulse generating circuit Disclosed is a high-voltage pulse generating circuit comprising an inductor, a first semiconductor switch and a second semiconductor switch connected in series between both ends of a DC power supply unit. A diode unit is connected between a gate terminal of the firs... | 01/19/2010 |
| 7633182 | Bipolar pulse generators with voltage multiplication A bipolar pulse generator includes two, two-conductor transmission lines coupled together with a load positioned between the two transmission lines. Each conductor of a transmission line we define as a segment. Two segments of one transmission line are charged and s... | 12/15/2009 |
| 7573157 | High-power electrical pulses using metal oxide varistors A circuit and method for creating a high-power electrical pulse which has a smooth or flat-topped configuration as well as a very short rise time. A metal oxide varistor (MOV) is preferably placed in parallel with a load and a switch is preferably placed in series b... | 08/11/2009 |
| 7498697 | Marx generator The functionally critical series connection of high-voltage-resistant resistors (Rn, R′n) in a Marx generator (11) is replaced according to the invention by a molding (12, 12′) composed of conductive plastic, which, depending on the configuration g... | 03/03/2009 |
| 7495357 | XRAM generator with an opening switch A circuit which produces a current pulse through a load element, includes a primary energy storage unit and a secondary energy storage unit which can be charged up by the primary energy storage unit; an opening switching element which is configured to interrupt or e... | 02/24/2009 |
| 7489052 | High voltage pulse generating circuit A high voltage pulse generating circuit comprises an inductor, a first semiconductor switch and a second semiconductor switch connected in series between both ends of a direct current power supply, and a diode wherein a cathode terminal is connected to one end of th... | 02/10/2009 |
| 7485989 | Tunable electrical transient generator for electromagnetic pulser A system for generating a high voltage energy pulse comprises a capacitive energy storage arrangement that is coupled to a direct current (DC) power supply. The capacitive energy storage arrangement stores energy from the power supply. The system also includes a pul... | 02/03/2009 |
| 7462956 | High efficiency NLTL comb generator using time domain waveform synthesis technique A device and method are disclosed for synthesizing a waveform having pulse segments. An exemplary generator can include units having a time delay element and pulse generator generating the pulse segments. An input divider divides an input signal into signal instance... | 12/09/2008 |
| 7440568 | Bipolar pulse forming line A bipolar pulse forming transmission line module for linear induction accelerators having first, second, third, fourth, and fifth planar conductors which form an interleaved stack with dielectric layers between the conductors. Each conductor has a first end, and a s... | 10/21/2008 |
| 7414333 | High-voltage pulse generating circuit A high-voltage pulse generating circuit has an inductor, a first semiconductor switch, and a second semiconductor switch which are connected in series between opposite terminals of a DC power supply unit, and a diode having a cathode terminal connected to a terminal... | 08/19/2008 |
| 7405499 | Waveform generating apparatus, waveform generating method, and decoder Amplitude, phase and frequency of a sine wave to be generated are calculated on the basis of feature quantity s1 delivered to feature quantity detecting means (2), and are sent to initialization means (3). The initialization means (3) cal... | 07/29/2008 |
| 7394171 | Supporting flue structure for an electrical pulse generator A integrated flue support construction (2) for a Marx impulse voltage generator (2) with several generator stages (3) is disclosed. It has been known to arrange a flue (2) for flushing the air of switching spark gaps (4) separately... | 07/01/2008 |
| 7375489 | Apparatus for generating sine waves of electromotive force, rotary switch using the apparatus, and generators using the rotary switch An apparatus generates sine waves of electromotive force (i.e. alternating current) from a battery. The battery includes a given number of cells connected in series. A stator and commutator is formed by a multiple of segments. Each of the segments is connected in se... | 05/20/2008 |
| 7372056 | LPP EUV plasma source material target delivery system An EUV light generation system and method is disclosed that may comprise a droplet generator producing plasma source material target droplets traveling toward the vicinity of a plasma source material target irradiation site; a drive laser; a drive laser focusing opt... | 05/13/2008 |
| 7368741 | Extreme ultraviolet light source The present invention provides a reliable, high-repetition rate, production line compatible high energy photon source. A very hot plasma containing an active material is produced in vacuum chamber. The active material is an atomic element having an emission line wit... | 05/06/2008 |
| 7369960 | Device and method for detecting an angular position of a rotating object In detecting the time at which a rotating object passes a given angular position, a value range of an angular position sensor output signal which varies relatively rapidly with angular position acts as a trip threshold that, when exceeded, indicates the object has a... | 05/06/2008 |
| 7365351 | Systems for protecting internal components of a EUV light source from plasma-generated debris Systems and methods are disclosed for protecting an EUV light source plasma production chamber optical element surface from debris generated by plasma formation. In one aspect of an embodiment of the present invention, a shield is disclosed which comprises at least ... | 04/29/2008 |
| 7365615 | Method and apparatus for digital synthesis of microwaves Conductor segments are positioned within a two conductor transmission line in order to generate microwave pulses. The conductor segments are switchably coupled to one or the other of the transmission lines in parallel. Microwave pulses may be induced in the transmis... | 04/29/2008 |
| 7365349 | EUV light source collector lifetime improvements An apparatus and method for cleaning a plasma source material compound from a plasma produced EUV light source collector optic which may comprise reacting the plasma source material compound with hydrogen to form a hydride of the plasma source material from the plas... | 04/29/2008 |
| 7362174 | Current-controlled CMOS (C3MOS) wideband input data amplifier for reduced differential and common-mode reflection Current-controlled CMOS (C3MOS) wideband input data amplifier for reduced differential and common-mode reflection. Impedance matching and bandwidth extension provides desired gain at higher frequencies and may be achieved at the interface between silicon and package... | 04/22/2008 |
| 7355191 | Systems and methods for cleaning a chamber window of an EUV light source Systems and methods are disclosed for cleaning a chamber window of an extreme ultraviolet (EUV) light source. The window may have an inside surface facing a chamber interior and an opposed outside surface and the light source may generate debris by plasma formation.... | 04/08/2008 |
| 7355300 | Solid state turbine engine ignition exciter having elevated temperature operational capability A turbine engine ignition exciter circuit applies energy stored in the exciter tank capacitor to the load (igniter plug) through a thyristor type semiconductor switching device that minimizes leakage current at elevated operating temperatures. The semiconductor swit... | 04/08/2008 |
| 7348863 | Simple time domain pulse generator A pulse generating circuit and related method, for producing extremely narrow pulses for use in monolithic microwave integrated circuits (MMICs) for radar, high-speed sampling, pulse radio and other applications. A sinusoidal input signal is supplied to two nonlinea... | 03/25/2008 |
| 7347317 | Method and device for measuring conveyor belt elongation, method and device for measuring conveyor belt wear extent, method and device for measuring conveyor belt temperature, rubber magnet sheet, and method of producing rubber magnet sheet Methods and devices for measuring elongation, wear, and internal temperature of a conveyor belt to catch signs of conveyor belt failure such as breakage by detecting a magnetic field from a magnetic body by using a magnesium sensor, as well as a rubber magnet sheet ... | 03/25/2008 |
