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| Patent # | Description |
|---|---|
| US-4,494,044 |
Computer type electronic flash device The disclosed computer type electronic flash device has a light measuring circuit which produces a flash terminating signal upon receipt of light reflected from... |
| US-4,494,043 |
Imploding plasma device An ionizable material is ejected in the shape of a cylindrical column from a cathode-nozzle toward an anode and subjected to a very short, high voltage pulse of... |
| US-4,494,042 |
Mercury target sensing and locating apparatus Apparatus is provided for sensing a mercury dispensing target within an arc-discharge lamp and connecting a DC voltage source thereto to effect current flow and... |
| US-4,494,041 |
Incandescent ballast assembly Apparatus for use with a fluorescent lamp having a longitudinal axis and a filament winding at each end includes a pair of terminals formed for connection to a... |
| US-4,494,040 |
Radio frequency quadrupole resonator for linear accelerator An RFQ resonator for a linear accelerator having a reduced level of interfering modes and producing a quadrupole mode for focusing, bunching and accelerating... |
| US-4,494,039 |
Gyrotron traveling-wave device including quarter wavelength
anti-reflective dielectric layer to enhance... A gyrotron traveling-wave device including quarter wavelength anti-reflece dielectric layers to enhance microwave absorption. A drift tube made from a hollow... |
| US-4,494,038 |
Gas discharge device A gas discharge device containing at least two electrodes is shown, at least one thereof being insulated from the gas by a dielectric member containing a... |
| US-4,494,037 |
Gas discharge display device having anodized and unanodized electrode
surface areas An improved gas discharge display device is provided having an envelope of at least one glass plate with an electrode pattern thereon. The electrode pattern is... |
| US-4,494,036 |
Electron beam window A method of making an electron permeable window is provided which entails depositing a thin film of an inert, high strength material or compound having a low... |
| US-4,494,035 |
Thermoelectric cathode for a hyperfrequency valve and valves
incorporating such cathodes This invention concerns a thermoelectronic cathode for hyperfrequency electron tubes. The cathode comprises a cylindrical molybdenum casing, the lower portion of ... |
| US-4,494,034 |
Magnetron filament having a quadrilateral cross-section A magnetron includes an evacuated envelope having therein a cathode assembly. An anode electrode surrounds the cathode assembly. The cathode assembly is formed... |
| US-4,494,033 |
Thin lead suspension for a piezoelectric resonator A mini-oscillator assembly (20) is formed by initially bonding ribbon leads (34) to contact pads (32) on a planar substrate (26) of a hybrid integrated circuit... |
| US-4,494,032 |
Transducer plate for electro-acoustic transducers The invention relates to a transducer plate for electro-acoustic transducers, such as used in telecommunications technology, having a carrier plate and a ceramic... |
| US-4,494,031 |
High power acoustic wave arrangement with N.sup.2 parallel-series
connected acoustic wave devices N.sup.2 acoustic wave devices (A,B,S,T; where N is an integer greater than unity) with substantially the same electrical impedance and transfer characteristics... |
| US-4,494,030 |
Apparatus for preventing overflux damage to stator cores A means for preventing harmful interlaminar electrical currents from flowing within the stator core of dynamoelectric machines is disclosed. By providing an... |
| US-4,494,029 |
Brushgear Brushgear having brushes, each comprising a terminal and a brush arm, both made of electrically conductive metal strips and joined together into one piece, the... |
| US-4,494,028 |
Integral coaxial commutation and rotor magnets and apparatus and method
for making same An integral field and commutation magnet for use in DC brushless motor has both commutation and field magnet portions. Magnetized segments in both the field and... |
| US-4,494,027 |
Dynamoelectric machine with self-adjusting bearing A dynamoelectric machine has at least one sheet metal end shield including a partial spherical bearing seating surface deformed therefrom and a set of keys also... |
| US-4,494,026 |
Brush-mounting structure of miniature motor A brush mounting structure of a miniature motor wherein brushes of the motor are fastened to bent end pieces of terminal plates, the terminal plates are fixed to... |
| US-4,494,025 |
Linear drive device with two motors The linear feed device is suitable for extremely slow feed rates or extremely small feed steps. It works with two motors (M.sub.1, M.sub.2) which drive a nut... |
| US-4,494,024 |
One shot spring activated motor A motor shaft is inserted through the center of a first and second coil spring. A first end of each spring is attached to the motor shaft and the second end is... |
| US-4,494,023 |
Magnetic motor machine A magnetic motor machine is provided in a compact housing and comprises a pair of electromagnetics rigidly attached within said housing in spaced apart... |
| US-4,494,022 |
Electromagnetic force-transducer An electromagnetic force-transducer comprising a magnetic circuit and an electromagnetic coil kept movable in the static field provided by said magnetic circuit.... |
| US-4,494,021 |
Self-calibrated clock and timing signal generator for MOS/VLSI circuitry A self-calibrated clock and timing signal generator provides reliable and continuous arbitrary digital waveforms of preselectable edge resolution. The generator... |
| US-4,494,020 |
High sensitivity sense amplifier using different threshold valued MOS
devices A sense amplifier wherein each of a first through a fourth inverter comprises a driving transistor and a load transistor; the first, second, third and fourth... |
| US-4,494,019 |
Low level signal comparator apparatus The present comparator circuit uses a multiplexing operation in a feedback arrangement for balancing the current flow in one-half of a comparator circuit so that... |
| US-4,494,018 |
Bootstrapped level shift interface circuit with fast rise and fall times An input circuit for a field effect transistor (FET) storage is described which consists of a bootstrap inverter which by a dynamically operating charge-up... |
| US-4,494,017 |
Complementary decode circuit The decode circuit utilizes NPN and PNP transistors and performs a complete decode function in only one logic level with the no need for a true/complement input... |
| US-4,494,016 |
High performance MESFET transistor for VLSI implementation A gallium arsenide buffer amplifier for use in a very large scale integrated circuits is provided. The transistor device in the buffer amplifier has a uniform... |
| US-4,494,015 |
Pulse enhancement circuit for digital integrated circuit Integrated digital MOS-semiconductor circuit, including a first circuit part for generating charging and switching pulses, a second circuit part having an input... |
| US-4,494,014 |
Analogue current switch bipolar injection technology An analogue current switch comprising a cascade of n identical switching elements, each element comprising an I.sup.2 L integrated current-injection logic gate... |
| US-4,494,013 |
Gating circuit with spurious signal prevention means A gating circuit for gating a minimum duration input signal on one of a plurality of input lines (10) to a respective output line (16). The input lines (10) are... |
| US-4,494,012 |
Switch timer A switching timer device includes a manual switch having "on", "off" and "timer" positions. When the switch is set in the "on" position a load is supplied... |
| US-4,494,011 |
High voltage nanosecond pulse generator A high voltage pulse generator for generating at least 500 kilowatts power over a time interval of substantially two nanoseconds with short risetime, using a... |
| US-4,494,010 |
Programmable power control apparatus responsive to load variations An apparatus especially adapted for use in AC power systems of the type having a device for reducing power consumption by reducing load voltage, the apparatus... |
| US-4,494,009 |
Method and apparatus for capturing an electrical potential generated by
a moving air mass A method and apparatus for making available an electrical current, which comprises placing a conductive airfoil in a moving air mass, sinking a conductive... |
| US-4,494,008 |
Wind-driven generator An arrangement for harnessing wind energy has a platform pivotably supported on a base for movement in a horizontal plane with a pair of elongated arms diverging... |
| US-4,494,007 |
Wind machine To generate power from wind economically, a feathering vane is pivotally mounted perpendicular to a tail vane and shifts the orientation of a sprocket assembly... |
| US-4,494,006 |
Method and apparatus for controlling a multicompressor station A method of control and control apparatus for load sharing between multiple compressors working in parallel and/or in series which enables all of the ... |
| US-4,494,005 |
Beam scanning control device for ion implantation system In an ion implantation system wherein an ion beam is scanned by deflection means in a predetermined direction on substrates placed on a disc rotating at a... |
| US-4,494,004 |
Electron beam system An electron beam method and apparatus, for writing patterns, such as on semiconductor wafers, in which the writing field is divided into a large number of... |
| US-4,494,003 |
Method of detecting gamma radiation by placing glass doped with iron in
an environment subject to gamma... Gamma radiation is detected by placing iron doped glass in an environment bject to gamma radiation and then measuring any color change in the doped glass as a... |
| US-4,494,002 |
Pistol-shaped dosimeter charger A pistol-shaped charger assembly clamps a cylindrical radiation dosimeter against one edge thereof. A triggerlike lever on the handgrip of the assembly is... |
| US-4,494,001 |
Detection of concealed materials A hand portable probe 11 contains a radioactive source capsule 16 of low energy .gamma. rays which penetrate into an object against which the probe is... |
| US-4,494,000 |
Image distortion-free, image rotation-free electron microscope A transmission electron microscope comprises an imaging electron lens system constituted in at least five stages by an objective lens, a group of intermediate... |
| US-4,493,999 |
Method of energy resolved gamma-ray logging A radioactive logging method for evaluating a wellbore and its surrounding formation in which gamma-ray emitting nuclides may be naturally present. A radioactive... |
| US-4,493,998 |
Method for monitoring drilling materials for gamma ray activity In the preferred and illustrated embodiment taught herein, method steps for monitoring of raw materials to be used in drilling mud are disclosed. The materials... |
| US-4,493,997 |
Fiber optic sensor for shaft state A shaft state sensor includes a rotating member having a miniaturized lamp mounted thereto. A rotary transformer is connected to the lamp and supplies it with... |
| US-4,493,996 |
Semiconductor switch device An electrical contact unit comprises a flexible semiconductor, e.g. silicon, filament carrying contacts and having a shorted pn junction. The filament is mounted... |
| US-4,493,995 |
Fiber optical measuring device with a frequency sensitive transducer The invention relates to a fiber optical measuring device for measuring physical quantities such as temperature and pressure, comprising a measuring transducer... |
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