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| Patent # | Description |
|---|---|
| US-4,158,841 |
Method and apparatus for the control of the safety distance of a vehicle
relative to preceding vehicles A method and apparatus for the control of the safety distance of a vehicle with respect to preceding objects wherein various measurements and controls are... |
| US-4,158,840 |
3-D Radar comprising 2-D radar with height finding attachment A radar with 3-D capability comprises a conventional 2-D radar with a height finding attachment. More particularly, a height finding antenna is mounted on the... |
| US-4,158,839 |
Transition alarm circuit A driver circuit designed to respond to one or more of a set of signals by conducting during transitory or other time variations of the signals but by otherwise... |
| US-4,158,838 |
In-raster symbol smoothing system A symbol smoothing system for synthetically increasing the effective resolution of an in-raster symbol generator memory by a factor of four. The system stores a... |
| US-4,158,837 |
Information display apparatus A display system is shown which has a source of coded information in display mapped format and includes plural devices for decoding and utilizing the information... |
| US-4,158,836 |
Solid state timer for sealed contact relay A sealed contact relay for use in industrial control systems includes a solid state digital programmable timer which controls the operation of a timed relay... |
| US-4,158,835 |
Arrangement for detecting a window area of a window-having mail item An arrangement for detecting a window area of a window-having mail item is for use in combination with a device of the type disclosed in U.S. Pat. No. 4,034,341... |
| US-4,158,834 |
Data buffer for a label reader system including a data processor A data buffer for a label reader system including a data processor. The label reader system includes at least one label reader unit, a first memory means, a... |
| US-4,158,833 |
Manual downshift deacceleration warning light system A normally open switch is mounted on the gear shift knob and manually operated to activate the rear brake lights during downshifting. The switch is optimally... |
| US-4,158,832 |
Seismic apparatus for discrimination between track-type vehicles and
wheel-type vehicles 10. A vehicle identifying circuit comprising: means for detecting seismic brations created by passing vehicles and converting them into electrical impulses;... |
| US-4,158,831 |
Single turn potentiometer with helical coil spring wiper A single turn potentiometer is constructed as either an open frame or a housed unit. Both units incorporate a helical coil spring wiper mounted within a rotor... |
| US-4,158,830 |
Fitting for a circuit-interrupting device An end fitting for a high-voltage fuse is disclosed. A conductive end ferrule of the fuse has an enlargement formed near one end thereof, the enlargement having... |
| US-4,158,829 |
Electromagnetically operated DC power contactor An electromagnetically operated DC power contactor for high voltage and current use constructed to afford the required contact pressure at the arcing and main... |
| US-4,158,828 |
Relay device A relay device adapted to be removably mounted in plug-on circuit relation with at least a pair of male terminals of an electrically energized apparatus. The... |
| US-4,158,827 |
Current limiting contactor A current limiting contactor characterized by stationary and movable contacts, an elongated conductor supporting the movable contact, the conductor being fixedly... |
| US-4,158,826 |
Operator controllable detent mechanism for television tuners An operator-controllable detent mechanism is provided for a combination VHF-UHF television tuner. Separate torsionally-loaded detent springs are provided for two... |
| US-4,158,825 |
Waveguide expansion joint An expansion joint for connecting sections of waveguide includes a plurality of spacer discs mounted on a plurality of guide rods. The guide rods are rigidly... |
| US-4,158,824 |
Multi-node immittance network A supercapacitance element is disclosed having the input signal applied to both the inverting and non-inverting inputs of a single operational amplifier via two... |
| US-4,158,823 |
Transducer electrodes for filter or delay lines utilizing surface waves Transducer electrodes for filters or delay lines using surface waves wherein the transducers are formed by interdigital conducting films formed on the surface of... |
| US-4,158,822 |
Phosphorescence exhibiting materials for optically pumped lasers Chemical compounds resulting from the mixing of organosilanes and quinones in the presence of di-tert-butyl peroxide as a sensitizer, exhibit strong blue... |
| US-4,158,821 |
Laser gain tube An improved laser gain tube for use in a differential laser gyro is disclosed. The gain tube comprises a housing having a cathode located therein with a pair of... |
| US-4,158,820 |
Low level preamplifier circuit In a low level audio preamplifier circuit having complementary connected PNP and NPN bipolar transistors for receiving the audio input from a low level... |
| US-4,158,819 |
Instantaneous floating point amplifier An improved instantaneous floating point amplifier is provided having a plurality of cascaded amplifier stages, wherein the gain of a given stage of the... |
| US-4,158,818 |
Signal processors utilizing tuneable bandpass filters and trigger
circuits Described are several signal processors for measuring the flow rate of fluid. These processors incorporate various combinations of a unique tuneable bandpass... |
| US-4,158,817 |
Microwave input circuit with parametric down converter A microwave input circuit including a parametric upper sideband down converter for receiving an input signal whose frequency is not much different from the... |
| US-4,158,816 |
Memory type tuning system with provisions for skipping nonpreferred
tuning positions A tuning system of a television receiver includes a memory with a plurality of memory locations for storing tuning information associated with various channels a... |
| US-4,158,815 |
System for reducing the number of binary signals representing channel
numbers A tuning system having a display unit displaying the channel number of a channel selected by a user in response to display information includes eight binary... |
| US-4,158,814 |
Automatic overload protection system A variable impedance circuit is included between the antenna and the RF amplifier stage of a radio receiver portion of a transceiver and is responsive to a... |
| US-4,158,813 |
Combined microphone and accessory device A combined microphone and accessory device is disclosed for operation with a transmitter radio having a microphone audio circuit and a transmitter activating... |
| US-4,158,812 |
Radio transmitter with intermixed controls A radio control system having a plurality of individually adjustable manual controls for individually signaling the position to be assumed by each of a plurality... |
| US-4,158,811 |
Method and apparatus for testing and setting magnetic field strength of
permanent magnets in magnetic bubble... Method and apparatus for testing and setting the field strength of permanent magnets in a magnetic bubble domain chip module, wherein the final molded module is... |
| US-4,158,810 |
Telemetering post for measuring variables in a high-voltage overhead line One or more sensors coating a conductor of a high-voltage overhead line provide the signals for measuring variables associated with the operation of a... |
| US-4,158,809 |
Signal measuring and display control method and apparatus Method and apparatus for measuring the magnitude of a varying analog signal and for displaying a close approximation of a final stabilized value before the... |
| US-4,158,808 |
Load source simulator A high power source load simulator presents itself to a power meter as a conventional electrical load, but in fact is highly portable and dissipates relatively... |
| US-4,158,807 |
Gapped gate charge-flow transistor with a thin film sensor having two
modes of conduction within the gapped... A charge-flow transistor having a gapped gate electrode and a thin-film sensor material in the gap, which sensor material is sensitive to a property of the... |
| US-4,158,806 |
Method of checking the state of the lining of a melting unit and device
for effecting same The proposed method for checking the state of the lining of a melting unit consists of measuring the electric parameters of equal portions of the lining, located... |
| US-4,158,805 |
Method and apparatus for testing crystal elements A method and apparatus for determining anomalies in the frequency- or admittance-temperature characteristic of a piezoelectric crystal resonator by inserting a... |
| US-4,158,804 |
MOSFET Reference voltage circuit A stable temperature-insensitive constant reference voltage circuit is provided which can be implemented in either MOS or bipolar technology. The circuit may be... |
| US-4,158,803 |
Switching high voltage power supply A circuit to provide a fast convenient means of amplifying a low level analog/digital signal to very high voltage to drive a large capacitance of a multi-colored... |
| US-4,158,802 |
Rechargeable battery powered electric car and recharging station therefor A rechargeable battery powered electric vehicle comprising an electric motor powered by a rechargeable storage battery in combination with a recharging station... |
| US-4,158,801 |
Control system of alternating current motors In a control system of an alternating current motor energized by a frequency converter including serially connected rectifier and inverter of the type wherein... |
| US-4,158,800 |
Control system Improved drive logic for a stepper motor is provided using a closed loop feedback system which includes a coded disk driven by the motor and decoding means to... |
| US-4,158,799 |
Screwing tool for printing presses A control system for a reversible screwing tool for tightening and loosening screws in a printing press or the like which includes a pair of angularly spaced... |
| US-4,158,798 |
Control circuits for windscreen wipers for road vehicles In order to be able to use a standard windscreen wiper switch with a biased open contact for selecting flick wipe or intermittent wipe operation the control... |
| US-4,158,797 |
Power hoist A power hoist is disclosed wherein a single operating lever is moved between haul, hold and lock positions. A load may be suspended when the hoist is in hold... |
| US-4,158,796 |
Speed setting and control system for universal motors A universal motor is energized by a speed setting circuit during one half wave and a speed control circuit during the next half wave of each cycle of an AC... |
| US-4,158,795 |
Brushless DC motors A brushless DC motor capable of change of rotational direction is disclosed. The feed of a high-frequency voltage signal to switching elements is sequentially... |
| US-4,158,794 |
Drive means and method for vacuum fluorescent display systems A vacuum fluorescent display system for displaying a plurality of illuminable characters includes a plurality of segmented anodes, at least one cathode filament,... |
| US-4,158,793 |
Gas discharge lamp control circuit An energizing circuit for gas discharge lamps for room or street lighting or for lights used in document copying machines and the like comprises means for... |
| US-4,158,792 |
Light control device for high frequency lighted fluorescent lamp A light control device for a high frequency lighted fluorescent lamp includes a high frequency variable voltage power source. A first impedance element (a... |
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