Searching:
Search by keyword, patent number, inventor, assignee, city or state:
| Patent # | Description |
|---|---|
| US-4,059,801 |
Apparatus for degrading Q in a high-Q RF pulse transmitting system and
the like A high-Q, pulse transmitting antenna system is disclosed, as of the Loran type, wherein a simple solidstate circuit, employing mainly passive elements serves,... |
| US-4,059,800 |
Digital multi-line companded delta modulator A companded digital delta modulator which can encode both voice and voice band modem signals over a wide range of input levels is shown. The companding method or... |
| US-4,059,799 |
Tachometer apparatus The invention contemplates tachometer apparatus which functions from an electric pulse input which is of frequency directly related to engine speed of an... |
| US-4,059,798 |
Method and apparatus for measuring the current flowing in a workpiece Magnetic cores of clamp-on type current measuring devices having a Hall-effect device for measurement of D.C. currents are provided with stabilizing coils which... |
| US-4,059,797 |
A.C. capacitance measuring bridge Alternating current capacitance measuring bridge for measuring the capacitance of capacitors having one electrode connected to an external earth. It comprises a... |
| US-4,059,796 |
Second harmonic magnetic field detection circuit with means to rectify
the sensed signal A magnetic field sensing circuit using three windings on a magnetic sensor with one winding using a locally generated excitation voltage, a second winding... |
| US-4,059,795 |
Digital eddy current apparatus for sensing and analyzing metallurgical
characteristics of an electrically... A digital eddy current apparatus for sensing and analyzing metallurgical characteristics of an electrically conductive material. A square wave is supplied to a... |
| US-4,059,794 |
Method and apparatus for monitoring pass alignment in rolling mills A method of, and apparatus for, monitoring the alignment of a pass defined between cooperating rolls in a mill stand during rolling bar, rod or section stock.... |
| US-4,059,793 |
Semiconductor circuits for generating reference potentials with
predictable temperature coefficients A positive-temperature-coefficient difference between the emitter-to-base potentials of two transistors in particular configuration is scaled up and added to one... |
| US-4,059,792 |
Method for producing rectifier with switches of asymmetric voltage
breakdown strengths A rectifier for a medium voltage rectifier system as well as for high voltage-direct current transmission includes a plurality of thyristor switches. The... |
| US-4,059,791 |
Voltage supply circuit for voltage-dependent capacitor diode tuning In a voltage supply circuit for voltage-dependent capacitor diode tuning, a d.c. voltage is produced by a.c.-d.c. conversion of an a.c. voltage which is obtained... |
| US-4,059,790 |
Non-oscillating torque control apparatus An apparatus is disclosed for generating a non-oscillating torque wherein a magnetic induction torquer having a first coil for clockwise torque and a second coil... |
| US-4,059,789 |
Phase-sensitive transducer apparatus with signal offset means A phase-sensitive transducer apparatus comprises first and second relatively movable members, the first relatively movable member having a plurality of windings... |
| US-4,059,788 |
Device for automatically controlling an electroerosion cutting machine A device for automatically controlling an electroerosion cutting machine in which a unit for selecting a direction of rotation of drive motors in the course of... |
| US-4,059,787 |
Method for the automatic location of particular zones of a surface and
an installation for the application of... Particular zones are given a distinctive appearance with respect to surrounding areas on a surface such as a printed-circuit board to be drilled in an automatic... |
| US-4,059,786 |
Wheelchair control circuit A wheel chair motor control circuit for a wheel chair having two independently controllable motor-driven wheels. The user has a "joystick" control operable from... |
| US-4,059,785 |
CRT display with truncated Rho-Theta presentation In a CRT display exhibiting a Rho-Theta format where certain of the lines would normally extend beyond the edges of the CRT screen, feedback signals from at... |
| US-4,059,784 |
Electron-beam converter The electron-beam converter comprises at least one of each of the following components: a cathode, an anode and, accelerating and control electrodes. The anode... |
| US-4,059,783 |
Field emission apparatus An electron producing apparatus of the field emission type wherein instantaneous values of an emitted current are sequentially measured to store a relative... |
| US-4,059,782 |
Spark plug A spark plug having an internal auxiliary spark gap in series with an ignition noise suppressor in a center electrode is disclosed. One side of the series gap is... |
| US-4,059,781 |
Shadow mask each aperture of which is defined by a quadrupolar lens A post-focusing type color cathode ray tube comprising a quadrupole lens formed in each aperture of the color selection mask. |
| US-4,059,780 |
Synchronous motor A synchronous motor comprises a rotor of permanently magnetized high coercivity material and a stator formed of two metal plates having projecting imbricated... |
| US-4,059,779 |
Electric motor and brake arrangement An electric motor and brake arrangement comprises an electric motor with a drive shaft for the motor and an output shaft for the arrangement, the output shaft... |
| US-4,059,778 |
Rectifier assembly structure, particularly for automotive-type
alternator-rectifier combination To simplify manufacture and assembly of automotive alternator-type rectifier combinations, the rectifier structure is made by pressing rectifier diodes, in... |
| US-4,059,777 |
Cooling of discoidal dynamoelectric machines An axial gap, disc type, dynamoelectric machine has a stator housing, field pole structures located inside the housing at angularly spaced intervals, and a... |
| US-4,059,776 |
Electric motor brush mounting An electric motor frame has a brush-receiving recess beside the commutator. The recess has top and bottom walls and an insulating brush housing is disposed in... |
| US-4,059,775 |
Linear motor A linear motor having a permanent magnet armature whose interaction with the field provided internally by a closed flux path field core having a winding on one... |
| US-4,059,774 |
Switching inverter with thermoconductive materials A switching point, for telephone switching, and a matrix are provided. They use thermoconductor materials i.e. materials capable of a sudden change in ... |
| US-4,059,773 |
Switch controlled power receptacle system An electrical appliance having a switch controlled plug type connector may be plugged into any one of a plurality of power terminal receptacles connected to a... |
| US-4,059,772 |
Waste energy source utilization circuit and method A switching circuit, typically a thyristor bridge, is connected to a source of waste energy. The source can be waste energy occurring as a by-product of man's... |
| US-4,059,771 |
Wind electric plant with improved alternator field excitation In a wind electric plant of the type including a wind-driven propeller or the like and an alternating current alternator connected to be driven thereby to... |
| US-4,059,770 |
Uninterruptible electric power supply An electric power supply system for a load wherein two prime movers, a gas turbine and a synchronous electric motor receiving its motive energy from a source of... |
| US-4,059,769 |
Starting material radiation source for Mossbauer investigations of
tellurium compounds A radiation source for Mossbauer investigations of tellurium compounds manufactured on the basis of 5MgO.Te.sup.124 O.sub.3 made by method of preparing this... |
| US-4,059,768 |
Radiographic intensifying screens Fluorescent X-ray image intensifying screen comprising discrete particles of fluorescent material dispersed in a binder layer which screen has an outer layer... |
| US-4,059,767 |
Back-illuminated transparency contrast enhancement system A transparency is illuminated from the back or non-viewing side through an array of apertures with a light source which is invisible to the viewer. This light... |
| US-4,059,766 |
Device for visualizing data presented in the form of radiant energy An image converter or intensifier which supplies a visual image from incident radiation. It comprises a metallic grid, a detector layer formed by a mosaic of... |
| US-4,059,765 |
Gamma-ray scintillation detector A plurality of independent scintillators are used to measure radiation dose rate. The opening of a light shielding shutter locating the scintillators and a... |
| US-4,059,764 |
Multi-element infra red sensors A miniaturized multi-element infra-red sensor comprises a Dewar tube having a tubular core and a jacket with an infra-red transmitting window at the upper end of... |
| US-4,059,763 |
Electron beam current, profile and position monitor The electron beam monitor includes two long, thin foil elements which are sequentially moved through an electron beam to be measured, in directions transverse to... |
| US-4,059,762 |
Method and apparatus for determining accuracy of radiation measurements
made in the presence of background... A radioactivity measuring instrument, and a method related to its use, for determining the radioactivity of a sample measured in the presence of significant... |
| US-4,059,761 |
Separation of isotopes by time of flight One of the isotopes of an element having several isotopes can be separated from the others in a dense, neutral plasma. Thus initially a neutral plasma is... |
| US-4,059,760 |
Georadiological surveying for oil and gas and subsurface structure
contour mapping A prospecting system for hydrocarbons using emanoradiation measurements of the neutron, beta, gamma rays, and radon gas emitted at the earth surface and... |
| US-4,059,759 |
Passive and active pulse stacking scheme for pulse shaping Apparatus and method for producing a sequence of radiation pulses with a pulse envelope of time variation which is controllable by an external electromagnetic... |
| US-4,059,758 |
Autofocus system An automatic single focus system of the spatial image correlation type uses two scans to position the primary lens. During a first scan, the amplitude of the... |
| US-4,059,757 |
Focus system for movie cameras An automatic continuous focus system of the spatial image correlation type uses a dual scan technique. |
| US-4,059,756 |
Focus control system with dual scan An automatic focus system of the spatial image correlation type uses a dual scan technique. During a first scan, the amplitude of the major extremum in the... |
| US-4,059,755 |
Luminaire lens insert A luminaire lens is provided with a prism arrangement which emits light in two beams. A fluorescent tube fixture is utilized with the lens and approximately the... |
| US-4,059,754 |
Louver for light distribution A louver unit for a lighting fixture assembly wherein blades extending longitudinally of the axis of an elongated lamp have reflective side surfaces curved on a... |
| US-4,059,753 |
Gasket material and method of making Felt gasket material comprising polyethylene terephthalate fibers and suitable for use in luminaires is provided with improved compression recovery properties at... |
| US-4,059,752 |
Trophy lamp An ornamental trophy consists of a base upon which are mounted a three dimensional trophy and one or more receptacles for displaying a memento of the trophy such... |
Copyright 2008−2012 Patents.com
