Searching:
Search by keyword, patent number, inventor, assignee, city or state:
| Patent # | Description |
|---|---|
| US-4,893,054 |
Shadow mask type color cathode ray tube A color cathode ray tube which comprises a face panel including a faceplate having a phosphor screen formed of a pattern of triads of phosphor dots on an inner... |
| US-4,893,053 |
Color display tube with channel electron multiplier means A color display tube which has a channel plate electron multiplier for multiplying a low voltage, low current electron beam and thereby obtaining an amplified... |
| US-4,893,052 |
Cathode structure incorporating an impregnated substrate A cathode structure comprises a substrate including a porous sinter of a metal having a high melting point, which is impregnated with electron emitting material,... |
| US-4,893,051 |
Spark plug and the method of manufacturing the same A spark plug for internal combustion engines provided with a noble metal tip on the pointed top of a spark plug center electrode. The noble metal tip is welded... |
| US-4,893,050 |
Lamp with a captured reflector and method of manufacture A lamp with an internal reflector is disclosed. The reflector includes an extension captured in the inner surface of the envelope to security position, and... |
| US-4,893,049 |
Lithium niobate explosion monitor Monitoring explosive devices is accomplished with a substantially z-cut lithium niobate crystal in abutment with the explosive device. Upon impact by a shock... |
| US-4,893,048 |
Multi-gap switch A power switch which comprises a plurality of contact pairs connected in series provides substantial operational advantages. Included in these advantages are... |
| US-4,893,047 |
Ultrasonic driving device A stator consists of a cylindrical piezoelectric vibrator and electrodes respectively divided in two in its inside and outside portions. When alternative current... |
| US-4,893,046 |
Ultrasonic driving device A rotary member rotatably supports a plurality of balls, disks or rolls which are pressed on a stator by a pressure member. When the stator generates progressive... |
| US-4,893,045 |
Ultrasonic driving device A stator is composed by two metal blocks, a piezoelectric vibrator and vibrators, and two electrodes, in which one electrode is divided in two at least, the... |
| US-4,893,044 |
Rotor balancing An improved arrangement for securing a counterweight to a rotor of an electric motor is disclosed wherein the counterweight includes a body portion disposed... |
| US-4,893,043 |
Brush protection in an electric motor In an electric motor having a commutator, when a brush wears the associated brushleaf carrying the brush may snag in gap between commutator segments of the... |
| US-4,893,042 |
Rotor for DC motor A rotor for a DC motor comprising an axial lamination of core sheets having a plurality of radially and inwardly extended slits, and armature coils wound around... |
| US-4,893,041 |
Stator end cap insulator assembly including an improved stator liner,
stator liner retainer and shading element... An improved stator end wire insulation assembly for a stator core wherein molded end cap insulator structure for such stator core includes means to restrain... |
| US-4,893,040 |
Dynamo-electric machines A rotating part for a high speed synchronous generator comprises a core of magnetic material, side walls of nonmagnetic material, and an outer circumferential... |
| US-4,893,039 |
Windshield wiper motor A windshield wiper motor having a motor casing and a reduction gear casing is provided with a crooked air passage between the casings which is provided with a... |
| US-4,893,038 |
Device for limiting direction of rotation of synchronous motor A device for limiting the direction of rotation of a synchronous motor includes a gear connectable to a rotor of the motor for being rotated. A shaft rotatably... |
| US-4,893,037 |
Motor-driven cable reel assembly A motor-driven electric cable reel assembly includes a rotatable cable take-up drum, and an electric motor for driving the drum in a cable take-up direction. The... |
| US-4,893,036 |
Differential signal delay circuit A delay circuit for differential signals has input terminals for receiving primary and complementary phases of the differential signals and output terminals upon... |
| US-4,893,035 |
Cascaded low pass/high pass filter phase shifter system A cascaded low pass/high pass filter phase shifter system including: a series of semiconductor switches each having a control electrode and first and second load... |
| US-4,893,034 |
Stop/restart latch The logic circuit is disclosed. Even if the system is stopped while an output latch circuit is in the latching state, when an input latch circuit is latching an... |
| US-4,893,033 |
Programmable logic array having input transition detection for
generating precharge A programmable logic array circuit includes a pulse signal generating circuit for generating a pulse signal by detecting a change in levels of input signals. A... |
| US-4,893,032 |
Non-saturating temperature independent voltage output driver with
adjustable down level A non-saturating voltage output driver circuit. A controlling mechanism is connected to a current source, a reference voltage and a load. A pre-driver is also... |
| US-4,893,031 |
Logical circuits for performing logical functions without a power supply Two basic logical circuits having a transfer gate section consisting of a channel MOS transistor and a P-channel MOS transistor, the gate electrode of the former... |
| US-4,893,030 |
Biasing circuit for generating precise currents in an integrated circuit An integrated circuit chip is fabricated with an operational active device and a nearly-identical, exemplary active device. The exemplary device is connected in... |
| US-4,893,029 |
Power supply noise protection circuit A semiconductor integrated circuit has an input circuit, an internal circuit, and an output circuit. These circuits are all formed on a single chip and are... |
| US-4,893,028 |
One or more input asynchronous register A register is disclosed in which an applied data signal D or its complement D is used to set or reset an output RS flip-flop under control of an applied load... |
| US-4,893,027 |
Proximity switch insensitive to interference fields In order to improve a proximity switch insensitive to interference fields r detecting the position of a machine element with at least one sensor which generates... |
| US-4,893,026 |
Station for detecting and locating through laser beams an object or a
substance likely to diffuse back at least... A station for locating through laser rays an object likely to diffuse back a part of the incident laser ray, wherein the optical emitter and receiver devices... |
| US-4,893,025 |
Distributed proximity sensor system having embedded light emitters and
detectors A distributed proximity sensor system is provided with multiple photosensitive devices and light emitters embedded on the surface of a robot hand or other moving... |
| US-4,893,024 |
Apparatus for measuring the thickness of a thin film with angle
detection means An apparatus for measuring the thickness of a thin film utilizing an interferometric method includes a light source for generating a monochromatic light beam, a... |
| US-4,893,023 |
Radiation shielding apparatus Apparatus for shielding an otherwise exposed upper portion of a radioactive reactor component disposed in a refueling pool of water having a depth less than the... |
| US-4,893,022 |
Closure for casks containing radioactive materials An improved closure for covering and sealing a radioactive waste cask of the type having an opening circumscribed by a ledge is disclosed herein. The closure... |
| US-4,893,021 |
Process for the production of multiple radiographic images A process for the production of multiple radiographic images in which a corresponding number of photosensitive layers is exposed in a single shot to penetrating... |
| US-4,893,020 |
X-ray fluorescent image intensifier An X-ray fluorescent image intensifier is disclosed, which comprises an input screen for converting an incident X-ray image into photoelectrons, electrodes for... |
| US-4,893,019 |
Ion current generator system for thin film formation, ion implantation,
etching and sputtering The ion current generator is employed for thin film formation, ion implantation, etching, sputtering or the like. A vaporizer supplies material atoms to a... |
| US-4,893,018 |
Radiation detecting circuit including positional error calibrator A radiation detecting circuit includes a semiconductor radiation detector, a charge converting circuit, a duration time measuring circuit, an incident position... |
| US-4,893,017 |
Dose and dose rate sensor for the pocket radiac A radiation detector which registers the radiation absorbed during the Prt Initial Radiation (PIR) phase following the detonation of a battlefield nuclear... |
| US-4,893,016 |
Gas-cooled semiconductor radiation detector A semiconductor radiation detector is equipped with a semiconductor detection device such as silicon or germanium and is used in qualitative and quantitative... |
| US-4,893,015 |
Dual mode radiographic measurement method and device A method and apparatus for detecting and measuring radiation is disclosed. The apparatus includes a scintillator crystal and a photodetector optically coupled to... |
| US-4,893,014 |
Movement monitor having an infrared detector Movement monitors with segmented collecting optics have dead zones between the individual focusing segments, in which a radiating object can stay without... |
| US-4,893,013 |
Detector and localizer for low energy radiation emissions A detector particularly suited for use in immuno-guided surgery capable of detecting very faint gamma emissions and thereby localizing cancerous tumor. The... |
| US-4,893,012 |
Radiation image read-out and reproducing apparatus An image read-out and reproducing apparatus comprises an acousto-optic modulator, and a change-over device for guiding zero-order light and first-order light... |
| US-4,893,011 |
Method of processing X-ray film cassettes with phosporus-coated films
and a reading station for executing the... A method and a reading station for processing a cassette containing an X-ray film coated with a layer of stimulatable phosphorus are proposed. The cassette with... |
| US-4,893,010 |
Image recording apparatus An image recording apparatus which produces an image on a photosensitive recoding medium through a light shieldable mask image carried on a light transmissive... |
| US-4,893,009 |
Scanning electron microscope and the like apparatus In a scanning electron microscope, voltage applied to the secondary electron detector for detection of secondary electrons released from a specimen bombarded... |
| US-4,893,008 |
Scanning optical microscope A scanning optical microscope comprises a light source, an objective lens for focusing light emitted from the light source upon an object to be observed, a light... |
| US-4,893,007 |
Rotary machine with a measuring device for the angle of rotation The invention relates to a device or arrangement for measuring the angle of rotation of the rotor of a rotary machine. Markings are applied circumferentially to... |
| US-4,893,006 |
Optical time domain reflectometer with level adjusting function An optical pulse supplying section supplies an optical pulse to a target optical fiber. A reflection light detecting section outputs an electric signal... |
| US-4,893,005 |
Method and apparatus for area and perimeter security with reflection
counting An apparatus and method for detecting disturbance in a protected area or perimeter by scanning the area or perimeter with a rotating beam of radiating energy,... |
Copyright 2008−2012 Patents.com
