Patents

Searching:





Search by keyword, patent number, inventor, assignee, city or state:




Patent # Description
US-3,952,230 Matrix type gas discharge display device
In a matrix type gas discharge display device comprising a number of discharge elements at the crossings of the rows and columns of the display matrix, a group...
US-3,952,229 Display device having signal lamps
In a display device having a plurality of signal lamps, each lamp is coupled to a signal contact through a first decoupling diode and a test voltage having a...
US-3,952,228 Electron-bombardment ion source including alternating potential means for cyclically varying the focussing of...
An ion source includes apparatus that defines a region in which a supply of ions are produced. An apertured grid is disposed at one end of the region. A...
US-3,952,227 Cathode-ray tube having electrostatic focusing and electrostatic deflection in one lens
A cathode-ray tube having electrostatic focusing and electrostatic deflection lens which comprises three cylindrical electrode arranged along a common axis. The...
US-3,952,226 CRT comprising strontium metal getter films and method of preparation
Apertured-mask cathode-ray tube comprises a strontium metal getter film on at least a portion of the electron-beam-receiving surface of the mask. The method...
US-3,952,225 Cathode-ray tube having phosphor screen interposed between composite mesh and reflective layer
An image screen structure for a monochrome or a color cathode-ray tube, in which the phosphor screen is interposed between a composite mesh and the conventional...
US-3,952,224 In-line electron guns having consecutive grids with aligned vertical, substantially elliptical apertures
In the tube gun, the apertures of the two grids closest to the cathodes are vertically elongated or, preferably, vertically elliptically shaped to provide at...
US-3,952,223 Multiple character flat panel display device
A display device adapted to display one or more characters side by side in a row and including an insulating support plate, on the top surface of which are...
US-3,952,222 Pickup tube target
1. A television camera tube comprising an elongated envelope, an electron gun in one end of said envelope for producing an electron beam, a target electrode in...
US-3,952,221 Gaseous discharge display panel including an apertured, electrically insulating, display sheet with electrodes
A gaseous discharge display panel in which in order to display images of good quality with high brightness and high efficiency a discharge unit constituting of a...
US-3,952,220 RPM Measuring apparatus
A rpm measuring apparatus includes a rpm signal generator having a magnetic circuit composed of a toothed disc, driven by a drive shaft, and a yoke carrying an...
US-3,952,219 Compact motor
A compact motor having a rotor positioned in the magnetic field of a stator, the stator being formed with at least two magnetic pole members in registration with...
US-3,952,218 Grounded electrical connector for submersible apparatus
An insulating, resilient plug body having a forward portion of reduced diameter is sealingly received in a stepped hole of similar dimensions formed in a...
US-3,952,217 Drive for scanning mirror
A drive system for causing a relatively massive scanning element, such as a mirror, to rotate back and forth about a scan axis, with minimum disturbance of the...
US-3,952,216 Multiple-frequency transducer
A transducer comprising an array of prestressed, mass-loaded, piezoelectr low-frequency, transducer elements set within a housing, a thin alignment plate bonded...
US-3,952,215 Stepwise fine adjustment
A variable d.c. source is connected to electrodes provided on the inner and outer surfaces of a hollow cylindrical body formed of piezoelectric ceramic through a...
US-3,952,214 Electrostatic generators
An electrostatic generator comprises a series of smooth uncovered electrically conductive elements which are interconnected mechanically by links so as to form...
US-3,952,213 Delayed pulse generating circuit
Delayed pulses are produced by a circuit in which an initiating input pulse causes signals to be supplied to two threshold circuits. The outputs of the threshold...
US-3,952,212 Driver circuit
A driver circuit which has low power requirements, a relatively small number of components and provides flexibility in output voltage setting. The driver circuit...
US-3,952,211 System for controlling the threshold setting of a field effect memory device
Apparatus and system for controlling the gate threshold settings of MNOS memory devices is disclosed. Positive or negative pulses depending on turn-on or...
US-3,952,210 Grounding of a double-pole high voltage-direct current-transmission system
A double-pole high-voltage direct-current transmission system is provided with two stations and an overhead line or cable, each of the stations having rectifier...
US-3,952,209 Electrical system for automotive vehicles and the like
An electric power distribution system for automotive vehicles is disclosed. The system employs a bus bar which is connected to an electric power source and...
US-3,952,208 Device for controlling the position of a first body relative to that of a second body
An accurate and reliable device for controlling the position of a first body, of which the devices forms part, relative to a second body is described. The edge...
US-3,952,207 Method and means for determination of particle size distributions in a mass flow of a granular material
Method and means for determining the particle size distribution in a flow of granular material in the particle size range of 1 .mu.m to several millimeters by...
US-3,952,206 Photometer circuit
The photometer circuit is operative to receive and store a reference voltage which is generated in a photosensor by light which passes through a blank solution...
US-3,952,205 Linear photon coupled isolator
A light emitting diode is driven by an input signal and electromagnetically coupled to a photodiode. The photodiode is connected to a high impedance load across...
US-3,952,204 Film holder for radiographing tubing
A film cassette is provided which may be easily placed about tubing or piping and readily held in place while radiographic inspection is performed. A pair of...
US-3,952,203 Object adjustment device for a charged particle beam apparatus
Object positioning apparatus for positioning the object to be observed in a orpuscular beam apparatus such as an electron microscope or the like having both...
US-3,952,202 Apparatus for irradiating flowable material
The radiation sources of the mobile irradiation apparatus are mounted in a carrier which is mounted at the top of the irradiation chamber. A screening cover is...
US-3,952,201 Radiography
In radiographic apparatus arranged to investigate a region of a body which can include a moving member, for example the heart of a human patient, means are...
US-3,952,200 X-ray generator for an apparatus for the production of tomographic x-ray pictures
An X-ray generator for an apparatus for the production of tomographic X-ray pictures at varying exposure periods, which is preset through the apparatus motion...
US-3,952,199 X-ray diagnostic installation
An X-ray diagnostic installation having a patient support arrangement, an X-ray tube for transilluminating a patient, a high-voltage generator for the X-ray...
US-3,952,198 Electron lens
An electron lens system comprising a plurality of quadrupole elements, a plurality of octupole elements for correcting the spherical aberrations of said...
US-3,952,197 Ion chambers
Ion chambers adapted for use with radiant energy in the vacuum ultraviolet and X-ray spectral regions are provided wherein the ion repeller and collector...
US-3,952,196 Radiation detection apparatus
A device for determining that the optical surfaces through which radiation must travel from a hazardous area of radiation to a radiation detector are free from...
US-3,952,195 System of inspecting tires with relatively movable inspection apparatus components
An automated tire inspection system employs penetrative emanation such as X-radiation to inspect the integrity of portions of tires fed sequentially along a feed...
US-3,952,194 Device for identifying the location of defects in a tire being X-rayed
An elastic band for positioning around the outer periphery of a tire being X-rayed and inspected for defects. A set of Arabic numerals are spaced equally around...
US-3,952,193 Imaging method with U.V. excitation of liquid crystal
The electrical resistivity of pure trans-stilbene nematic liquid crystalline materials is altered by exposure to ultraviolet radiation. These stilbenes can...
US-3,952,192 Thermal switch device
Thermal switch assembly for photoelectric control device to switch loads such as street lighting luminaires on and off in response to ambient light levels....
US-3,952,191 Controlled system for focussing a read-out light beam
A controlled system for focussing a read-out light beam onto a moving track carrying information, comprising: a focussing objective lens for forming a periodic...
US-3,952,190 Underwater strobe flash unit
A method of waterproofing a strobe flash unit for use in underwater photography. A mold is formed and a strobe flash unit is mounted within the mold. Epoxy resin...
US-3,952,189 Complex analog waveform generator
A signal generator digitally synthesizes a complex analog signal which has a frequency domain representation including a precise low-frequency offset for each...
US-3,952,188 Monolithic transversal filter with charge transfer delay line
A transversal filter which utilizes a charge transfer delay line in combination with a plurality of source-follower pairs or their equivalent to tap the delay...
US-3,952,187 Circuit for transforming rectangular coordinates to polar coordinates
A circuit for transforming to polar coordinate form first and second binary number electrical signals representative of rectangular coordinates or quadrature...
US-3,952,186 Apparatus for the generation of a two-dimensional discrete fourier transform
An apparatus for the generation of a two-dimensional discrete Fourier transform of an input signal developed from data within a data block, or field, having a...
US-3,952,185 Standard deviation determining apparatus
Standard deviation determining apparatus includes an integrator for integrating changes exhibited by a random variable, a circuit for selecting integrator output...
US-3,952,184 Apparatus for the automatic classifying and finding of groupings of series of distinguishing signs according to...
A method and apparatus are disclosed for automatically finding and classifying any group of trademarks belonging to an initial series and having similarities...
US-3,952,183 Sheet counting apparatus
A neat arrangement such as a pack of bills or like sheets to be counted is placed on one of their longitudinal edges in a sheet stand formed on the top of the...
US-3,952,182 Instantaneous electric fluid heater
A miniature electric fluid immersion heater adapted for instantaneously heating relatively small bodies or flow increments of fluid to a predetermined...
US-3,952,181 Humidifier
A humidifier includes an electric heating coil and a water receiving/steam generating coil both positioned in a steam generation zone of a housing. The heating...
← Previous | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 | Next →