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David Sarnoff, American radio pioneer ; 1921
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| Number | Title | Issue Date |
| 4293903 | High voltage rectifier for television receiver sets In a high voltage rectifier for use in a television receiver set, a resistor block is incorporated therein to produce focusing and screen voltages, and a focusing voltage feeder for supplying the focusing voltage to a cathode ray tube is covered by a scre... | 10/06/1981 |
| 4293918 | Digital differential analyzer with an increment output function A digital differential analyzer has a Y register, an adder, an arithmetic logic unit, an R register, a logic circuit for producing increments, and incremental registers. These circuit components are controlled by a control unit storing previous programs. ... | 10/06/1981 |
| 4292925 | Toner concentration detecting apparatus A toner concentration detecting apparatus is disclosed wherein developing powder including magnetic carrier and pigmented toner is carried on a magnet roller and transported thereby to a surface of a photosensitive drum, and after development a portion of... | 10/06/1981 |
| 4292942 | Ignition system for internal combustion engines An ignition system for an internal combustion engine. The ignition system comprises a pulser for generating positive and negative output pulses responsive to the rotation of the engine, a DC power source and an ignition coil having a primary coil connecte... | 10/06/1981 |
| 4293586 | Method for forming a fluorescent screen In forming a fluorescent screen for a cathode ray tube, an undercoat layer is first coated on the inner face of the panel. The undercoat layer contains at least polystyrene particles with a film weight of 0.002 to 0.04 mg/cm2. Coated on the und... | 10/06/1981 |
| 4292832 | Method of producing vibration attenuating metallic material A method of producing a vibration attenuating material having the steps of forming a multiplicity of grooves in the surface of a ductile raw material and subjecting the raw material to a drawing or rolling work to form a multiplicity of minute friction in... | 10/06/1981 |
| 4293521 | Apparatus for cleaning waste flue gases A waste flue gas cleaning method and an apparatus for practicing said method, in which a reactant solution is sprayed into a waste flue gas introduced into a spray tower, whereby a toxic component in the flue gas is caused to be absorbed in and react with... | 10/06/1981 |
| 4293926 | Dynamic type semiconductor memory equipment A dynamic type semiconductor memory equipment operative in an asynchronous refresh mode in a data processing system including a CPU and a plurality of the memory equipments is so arranged that no busy signal is sent to the CPU through a common busy signal... | 10/06/1981 |
| 4292825 | Gauge and tension control system for tandem rolling mill A gauge and tension control system for a tandem mill comprises a delivered strip thickness deviation calculating unit for detecting output strip thickness at each of rolling stands, a tension calculating unit for arithmetically determining interstand tens... | 10/06/1981 |
| 4293929 | Magnetic bubble memory devices Around the magnetic bubble memory chip placed within a recess formed at approximate center of the insulating substrate are arranged a plurality of rod-like members of soft ferromagnetic material to be on substantially the same plane as the major surface o... | 10/06/1981 |
| 4293944 | Information play-back apparatus with astigmatic auto-focusing Information play-back apparatus comprising a laser source, a recording medium, a photodetector, a first optical system which conducts a laser beam from the laser source to an information track on the recording medium as a read spot, and a second optical s... | 10/06/1981 |
| 4292811 | Operating method for refrigerating machine In an operating method for refrigerating machines which is disclosed, a variation pattern of an air-conditioning load on a prearranged day for refrigerating operation and a variation pattern of ambient temperature on the prearranged day are predicted. A p... | 10/06/1981 |
| 4292133 | Method of and apparatus for replacing control rod drive A control rod drive attaching and detaching device and a control rod drive handling device are mounted on a revolving device to be movable independently from each other. The control rod drive attaching and detaching device includes bolt handling means for... | 09/29/1981 |
| 4292533 | Motoring control for hydraulic pump-turbine A prime mover control apparatus for controlling a primer mover including a pump turbine or a water turbine driving a generator to be synchronously connected to a power system, is disclosed. In this control apparatus, immediately after the synchronous conn... | 09/29/1981 |
| 4291587 | Multistage speed change gear system In a multistage speed change gear system including a plurality of gears selectively interconnecting an input shaft and an output shaft located parallel to one another, the gears disposed concentric with the input shaft are supported by ball-and-roller bea... | 09/29/1981 |
| 4292258 | Altitude compensating device for carburetors An altitude compensating device for carburetors has an air metering valve in fluid communication with the fuel passage of the carburetor and a pressure-sensitive bellows adapted to drivingly control the air metering valve such that the flow rate of the co... | 09/29/1981 |
| 4292131 | Coupling mechanism of control rod for nuclear reactor Each of control rods inserted in the core of a nuclear reactor is coupled to a control rod driving apparatus for moving the control rod in an axial direction by a coupling mechanism including a gripper formed at a lower end of a driving extension shaft ad... | 09/29/1981 |
| 4292128 | Boiling water type nuclear reactor A boiling water type nuclear reactor adapted to be operated at a void quality (weight ratio of vapor in the coolant) of coolant at the core outlet of 17% or higher. By adopting this level of void quality, a void quality exceeding 8.5% is available at leas... | 09/29/1981 |
| 4291986 | Optical rate assay apparatus A serum and a reagent are supplied into a reaction tube to prepare a reactive solution or a sample solution which is sucked up at a predetermined position into one of a plurality of flow cells. The flow cells are mounted on a thermostatic block to be heat... | 09/29/1981 |
| 4292550 | Gate control circuit with capacitor for field controlled thyristor The positive terminal of a series circuit consisting of two capacitors is connected with the cathode of a field controlled thyristor through a resistor and a transistor and the negative terminal thereof is connected with the gate of the field controlled t... | 09/29/1981 |
| 4292596 | Gain control circuit A circuit for varying the gain of an amplifier circuit linearly in decibel by the use of a digital code signal varying linearly, wherein a resistance network to be connected between an amplifier having a fixed gain and an input or output portion for the a... | 09/29/1981 |
| 4291926 | Guide bearing device A guide bearing device for vertical rotary shafts including a plurality of segmental pads disposed circumferentially equidistantly around the rotary shaft, a plurality of adjusting bolts each supporting the respective segmental pads for pivotal movement, ... | 09/29/1981 |
| 4292618 | Semiconductor strain gauge with elastic load plate A semiconductor substrate has a major surface, another major surface on the opposite side of the first major surface, a strain gauge stripe formed in the central portion of the second major surface by diffusing an impurity therein, and electrodes connecte... | 09/29/1981 |
| 4292652 | Method of receiving a video signal In receiving a narrow band video signal transmitted through a narrow band transmission line such as a telephone line, a sound tape recorder or the like, the narrow band video signal is first stored in memories and is then read out therefrom at a higher re... | 09/29/1981 |
| 4290830 | Method of selectively diffusing aluminium into a silicon semiconductor substrate A method of diffusing selectively aluminium into a single crystal silicon semiconductor substrate for fabricating a semiconductor device comprises the steps of forming a diffusion source layer of aluminium having a predetermined thickness on at least one ... | 09/22/1981 |
| 4290850 | Method and apparatus for controlling feedwater flow to steam generating device A method and an apparatus for controlling feedwater flow to a steam generating device in a tripped condition of the steam generating device are disclosed. The method comprises the steps of arithmetically calculating a first forecast length of time require... | 09/22/1981 |
| 4290906 | Apparatus for cutting channel box for fuel assembly and method therefor Apparatus including two types of cutting means or roller cutters and shears for cutting a channel box for a fuel assembly for a nuclear reactor and method therefor. The roller cutters and shears are located in the lower portion of a casing having inserted... | 09/22/1981 |
| 4290907 | Process for treating radioactive waste Granular ion exchange resins in a desalter provided in a nuclear power plant are taken out from the desalter as used ion exchange resins when their capacities are lowered. The used ion exchange resins in a slurry state are led to a thin film drier. A rota... | 09/22/1981 |
| 4290908 | Method and apparatus for treatment of radioactive wastes A radioactive waste discharged from a radioactive substance handling equipment is dried and powdered, and the powder is pelletized. The resulting pellets are stored in an inner vessel of a store vessel having a double structure for a predetermined period ... | 09/22/1981 |
| 4291241 | Timing signal generating circuit A timing signal generating circuit including a clock source which generates clock pulses of a predetermined period, a binary counter which divides the frequency of the clock pulses from the clock source by n, a logical array which decodes an output of the... | 09/22/1981 |
| 4291252 | Electron tube cathode An electron tube cathode has a composite suppression layer structure interposed between the base metal and the electron-emitting material to suppress an interface layer formed through the reaction of the base metal with the electron emissive material. The... | 09/22/1981 |
| 4291259 | Control apparatus for controlling transistor chopper for use in current supply for electric motor A control apparatus for controlling the supply of current for an electric motor, having a transistor chopper circuit which includes a plurality of power transistors connected in parallel, and a duty controlling oscillator circuit for controlling the ON-OF... | 09/22/1981 |
| 4291293 | Semiconductor absolute pressure transducer assembly and method A semiconductor pressure transducer assembly comprising a silicon diaphragm assembly and a glass covering member. The silicon diaphragm assembly has a circular diaphragm portion of thin silicon which is formed using etching, and a thick supporting portion... | 09/22/1981 |
| 4290295 | Method of making V-grooved pulley assembly A V-grooved pulley assembly having thick wall portion and thin wall portion therein designed for use with electromagnetic type clutches for driving air conditioning compressors on automobiles and the like wherein the component parts thereof are fabricated... | 09/22/1981 |
| 4291297 | Single ramp comparison analog to digital converter An analog-to-digital converter of integration type comprises a charging and discharging capacitor, a first comparator for comparing an analog input voltage with the terminal voltage of the capacitor, a second comparator for comparing a reference voltage p... | 09/22/1981 |
| 4291306 | Figure displaying device Herein disclosed is a figure displaying device for producing and displaying a figure on a raster scan television. The figure displaying device includes first memory means for storing the vertical and horizontal coordinate values of the stop information of... | 09/22/1981 |
| 4291334 | System for detecting the position of an object An apparatus for detecting the position of an object. The apparatus has an optical device for magnifying or enlarging a plurality of portions on the object, a photoelectric converter adapted for converting the enlarged portion image into electric signals,... | 09/22/1981 |
| 4291335 | Vertical synchronizing signal detector A composite synchronizing signal is applied to the D input terminal of a D type flip-flop. A multiplied pulse obtained by multiplying a horizontal reference signal by 40 is applied to the C input terminal thereof, the horizontal reference being in phase w... | 09/22/1981 |
| 4291363 | Gas-insulated switchgear apparatus A gas-insulated switchgear apparatus is disclosed in which three-phase power transmission lines are anchored to associated entry gantries respectively while maintaining a required vertical open-air insulation distance between the power transmission lines,... | 09/22/1981 |
| 4290009 | Standing wave ratio detecting apparatus A standing wave ratio detecting apparatus is disclosed which comprises an integration circuit for integrating a traveling wave detection voltage VF, a comparator circuit for comparing the output voltage V'F of the integration circuit... | 09/15/1981 |
