Searching:
Search by keyword, patent number, inventor, assignee, city or state:
| Patent # | Description |
|---|---|
| US-3,952,180 |
Cladding A metal layer is clad to a metal substrate by laying spaced rods or wires of a cladding metal on the substrate surface and scanning the cladding metal with a... |
| US-3,952,179 |
Rotary cutting die and method for its production An improved rotary cutting die and method of producing it are disclosed wherein a cylindrical die blank or support has a weld bead applied on its peripheral... |
| US-3,952,178 |
Switch construction A limit switch construction is provided in which a first component is affixed to a first section of a housing and a second component is affixed to a second... |
| US-3,952,177 |
Timer for multi-purpose use A multi-purpose timer comprising a control member, a first and second slide plates which can be operated by the control member, a microswitch which is operated... |
| US-3,952,176 |
Multiple pole pushbutton rotary switch A multiple pole bushbutton rotary switch has axial as well as rotary travel. A first dimple in the back of the rotor of a stem and rotor assembly is rotatable... |
| US-3,952,175 |
Pushbutton switch mechanism having block out members with common
mounting and discrete latch bar A pushbutton switch mechanism includes a two-piece housing, a plurality of terminals positioned in the housing, a plurality of contact arms and a pivotally... |
| US-3,952,174 |
Pushbutton keyboard system A pushbutton keyboard system comprising an electrically insulative substrate, a plurality of actuating elements or disks arranged in an array of columns and rows... |
| US-3,952,173 |
Switching apparatus A two-stroke switch to be actuated by two stroke operations comprises a first stationary terminal, a second stationary terminal, a contact element of conductive... |
| US-3,952,172 |
Telephone call simulator A telephone simulator includes a plurality of pseudo subscriber circuits connected to subscriber lines. A plurality of pseudo junctors are connected to trunk... |
| US-3,952,171 |
Stereo phonograph cartridge An improved stereo phonograph cartridge which provides direct coupling between the stylus signal motion and right and left channel transducers with minimal... |
| US-3,952,170 |
Miniature apparatus for reproducing sound from a stationary record Miniature apparatus for reproducing sound from a stationary record which comprises a base and a main shaft mounted on the base. A disc-like member is rotatably... |
| US-3,952,169 |
Solid state line circuit for a key telephone system This solid state line circuit employs transistors, diodes, optical couplers, triacs, and other solid state components but no relays. It is designed to replace... |
| US-3,952,168 |
Rotary telephone dial structure Disclosed is a rotary dial with improved mounting arrangements for assembling the dial and for securing the dial within a telephone instrument. A rotary dial... |
| US-3,952,167 |
Electromagnetic coupler for use with a telephone set An electromagnetic coupling device for use with a telephone set having a hand hole in the rear thereof, the coupling device comprising a hollow plug removably... |
| US-3,952,166 |
Loudspeaking telephone circuit In the loudspeaking telephone circuit, the speech signal is used as a control signal for detecting the extent of decreasing the acoustic coupling between the... |
| US-3,952,165 |
Tie trunk control arrangement A tie trunk control arrangement is disclosed for providing tie trunk connections in an electronic private automatic branch exchange which is built around a space... |
| US-3,952,164 |
Vocoder system using delta modulation A speech transmission system employing a semi-vocoder comprising a spectral analyzer and a spectral synthesizer for the upper frequency range of the speech... |
| US-3,952,163 |
Method and apparatus for testing in FDM system A data communication system is described in which dial access control signals such as RING, DATA SET READY, DATA TERMINAL READY, CARRIER DETECT, and OUT OF... |
| US-3,952,162 |
Time division digital switching network A time division digital switching network comprises first multiplexing means in which first-order digital data channels transmitting words consisting of a given... |
| US-3,952,161 |
Audio processor circuit for an FM-stereo radio receiver An audio processor is disclosed which includes circuitry for modifying pure left and right audio signals by blending the left audio signal with the right audio... |
| US-3,952,160 |
Coin telephone arrangement to obviate acoustically coupled fraud Apparatus for transferring coin deposit information from a coin telephone station to a telephone office, for example, a TSPS, is highly susceptible to... |
| US-3,952,159 |
Ducted port reflex enclosure In a bass-reflex sound reproducing system, a ducted port is utilized to reduce distortion in the lower portion of the frequency range. To increase relative sound... |
| US-3,952,158 |
Ear protection and hearing device A device for protecting the ears from loud sounds while enabling low-level voice frequency sounds to be discerned. A microphone is positioned on the outside of... |
| US-3,952,157 |
Matrix four-channel decoding system A matrix four-channel decoding system wherein the mixing coefficients or mixing ratios of left and right composite signals of medium frequency range are... |
| US-3,952,156 |
Signal processing system A system for processing a plurality of audio signals to generate binaural output signals. The signal processor has a manually operated spatial position control... |
| US-3,952,155 |
Water ski tow communication system A water ski tow assembly is provided which incorporates a two-way communication system between the skier and the operator of a towing boat. The communication... |
| US-3,952,154 |
Automatic audio source selector for stereo entertainment center An automatic electronic control system for a home entertainment center, the system utilizing audio signal sensors for the preferential selection of the record... |
| US-3,952,153 |
Dot matrix printer having selectively actuated printed bars Remotely controlled electric printer, to which each character to be printed is applied as m groups of n bits, comprising a set of n rulers or print bars, the... |
| US-3,952,152 |
CRT shield A CRT shield comprising a woven metallic mesh screen seam welded to a metal collar which is perforated around its periphery. The collar is fitted over the face... |
| US-3,952,151 |
Method and apparatus for stabilized reproduction of remotely-sensed
images Disclosed is a method and apparatus for reproducing remotely sensed images in which the effect of attitude perturbation in the sensing device is removed from the... |
| US-3,952,150 |
Visualization of vibrations, deformations or level lines of a
three-dimensional object The present invention relates to a method of and apparatus for enabling the visualization of isometric physical condition maps of a three-dimensional test... |
| US-3,952,149 |
Television apparatus suitable for video signal analysis A television apparatus for video signal analysis has a camera tube in which, with the aid of a step-shaped deflection signal, a shift of a line scanning raster... |
| US-3,952,148 |
Optical video disc playback system with position servo An optical video disc playback system includes a feedback or servo arrangement through which radial beam tracking is maintained by controlled displacement of a... |
| US-3,952,147 |
Pickup arm cartridge A pickup arm cartridge houses a fragile signal pickup assembly of a video disc record player to (1) protect the signal pickup assembly during storage and... |
| US-3,952,146 |
Electron beam recording of wide-band signals on thermoplastic film This invention concerns a method of recording wide-band signals on a thermoplastic film. The signal to be recorded is converted to an intensity modulation of a... |
| US-3,952,145 |
Pickup arm cartridge apparatus A cartridge casing houses a fragile pickup arm unit of a video disc record player to, (1) protect the pickup arm unit during storage and handling, and (2)... |
| US-3,952,144 |
Methods and apparatus for automatic background and contrast control An automatic background and contrast control unit is used in a facsimile transmitter or receiver unit and operates on the uncorrected video signal representing... |
| US-3,952,143 |
Wide band AFC system A wide band automatic frequency control (AFC) system is shown wherein the presence or absence of a video signal in the video channel is detected by determining... |
| US-3,952,142 |
Electronic enclosure An all purpose electronic enclosure of electrically nonconductive material that adapts to various configurations and uses with a minimum of parts. A unitary... |
| US-3,952,141 |
Socket-to-cable connection for liquid cooled heavy current cable A heavy current cable has an inner tube, an outer envelope and conductors inbetween. A socket (one on each end) has a body, a sleeve for insertion of the... |
| US-3,952,140 |
Modular divisible barrel-shaped shell for metallurgical furnaces The disclosed horizontally divisible furnace shell comprises a spherically shaped bottom section and truncated cone cover-like shaped middle and top wall... |
| US-3,952,139 |
Circuit arrangement for supplying electrode melting furnaces The invention concerns a converter arrangement for electrode melting furnaces, particularly for electric slag remelting of metals. A current regulator in the... |
| US-3,952,138 |
Power control system for electric arc or refining furnace electrically
directly coupled to independent power... A power control system is disclosed for an electric arc or refining furnace circuit to which is supplied power directly from an independent power generating unit... |
| US-3,952,137 |
Method for the fabrication of a bitumenous roofing material A method for the fabrication of a mixture composed of a highly-viscous liquid phase and a thermoplastic and/or elastomeric material which is delivered to the... |
| US-3,952,136 |
Multi-layer product of metal and resin, and its production A multi-layer product of metal and resin which comprises a layer of a metal and a layer of a resin adhered thereon, said resin being a copolymer consisting... |
| US-3,952,135 |
Laminated glass windows for vehicles Windows for vehicles particularly windscreens comprise sheets of glass adhesively bonded together by means of a hot melt adhesive which is an ethylene copolymer... |
| US-3,952,134 |
Continuous filament product A crimped deregistered tow of continuous filaments wherein the filaments are coated with a silicone finish which is substantially free of antistatic agents and... |
| US-3,952,133 |
Pressure-sensitive display board A bulletin board, display panel or other posting device, having a pressure-sensitive surface on a thick resilient backing, has inproved object-retaining... |
| US-3,952,132 |
Recording sheet This invention provides a novel recording sheet having improved developing ability and resistance to light irradiation and which can be produced easily and... |
| US-3,952,131 |
Heat transfer print sheet and printed product A heat transfer print sheet comprising a base sheet, printing on said base sheet, a coating overlying the printed surface of the base sheet, said printing being... |
Copyright 2008−2012 Patents.com
