Searching:
Search by keyword, patent number, inventor, assignee, city or state:
| Patent # | Description |
|---|---|
| US-4,841,165 |
D. C. power controller A DC power controller for controlling the rate at which direct current is furnished to a load. A signal generator provides a periodic signal having a first value... |
| US-4,841,164 |
Light-sensitive switch structure and method with inverse off/on ratio Light-sensitive switch structure for and method of turning a street light or other load on or off in response to variations in light level. The switch is... |
| US-4,841,163 |
Proximity switch immune to interference fields A proximity switch immune to interference fields includes an oscillator circuit (1) that can be influenced by a permanent magnet, this circuit being damped in... |
| US-4,841,162 |
Limiter switching apparatus A limiter switching apparatus includes a control box adapted for being mounted on a machine table with a plurality of terminals and indicators for making... |
| US-4,841,161 |
Monitoring circuit for control means and selective breakaway means in
modular supply systems Modular supply systems usually include a plurality of n elementary power units, connected in parallel to each other. Control unit (RV) and selective breakaway... |
| US-4,841,160 |
Power supply switching circuit The subject invention is a power supply having an input for receiving a power signal, a DC storage device connected to the input, a primary output connected to... |
| US-4,841,159 |
Switching and testing system A switching system for powering first and second electrical loads from a voltage supply, the electrical loads being operable from controls and adapted to be... |
| US-4,841,158 |
Safety relay circuit for switching on electric systems of automotive
vehicles A safety relay circuit for operating electric systems of automotive vehicles is disclosed. The circuit includes two series-connected change-over relays... |
| US-4,841,157 |
Optical backscatter turbidimeter sensor There is disclosed a turbidimeter with an optical sensor having an IRED surrounded by four radiation detecting solar cells mounted on a printed circuit board... |
| US-4,841,156 |
Measurement of the thickness of thin films An ultraviolet source (14) directs selected ultraviolet radiation onto a thin film (10) to excite it. The thin film fluoresces, either naturally or as a result... |
| US-4,841,155 |
Indicator arrangement for motor vehicles Disclosed is an indication device of a gauging apparatus comprising an indicator panel having, on its surface, indication marks including patterns and... |
| US-4,841,154 |
Thermal copying apparatus A thermal copying apparatus disclosed holds an original and a recording sheet in intimate contact with each other between a holding member and a transparent... |
| US-4,841,153 |
Coal analysis An analysis method and system for analyzing coal or other material causes the material to be bombarded with neutrons from a source, and this generates gamma rays... |
| US-4,841,152 |
Continuous-resistance field shaping element for a kinestatic charge
detector A kinestatic charge detector having a chamber, which includes a front wall through which propagating energy enters and first and second electrodes disposed... |
| US-4,841,151 |
Variable volume flow cell A flow cell for liquid scintillation counting having a spool wound with a length of light transparent tubing provides a variable volume of sample solution for... |
| US-4,841,149 |
Device for detecting micro-leaks of gas by infrared radiations The present invention relates to a device for detecting micro-leaks of gas by directing the infrared radiation created by a thermal gradient onto a wall, which... |
| US-4,841,148 |
Variable temperature scanning tunneling microscope A thermally compensated tube scanner scanning tunneling microscope utilizes two concentric piezoelectric tubes, one for scanning and one for coarse translation... |
| US-4,841,147 |
Image read-out and recording apparatus An image read-out and recording apparatus comprises a device for splitting a light beam into a read-out beam and a recording beam, a common light deflector for... |
| US-4,841,145 |
Apparatus for preparing sample solution for infrared spectrophotometer
and method of analyzing sample solution A method of analyzing a sample solution comprises the steps of allowing the sample solution to drip onto a sample retaining means, depositing a solute of the... |
| US-4,841,143 |
Charged particle beam apparatus A charged particle beam apparatus is disclosed, which comprises a charged particle source; focusing means for focusing a charged particle beam emitted by the... |
| US-4,841,142 |
Document scanner with resolution selection control A resolution-select arrangement is provided for a fiber optic document scanner (or scope) having its exit field coupled to an array of discrete sensors. An... |
| US-4,841,141 |
Optical coordinates inputting apparatus having switching means to
operate y-axis light emitters when operation... An optical coordinates inputting apparatus which has a light emitting element array and a photodetector array opposed to the light emitting element array,... |
| US-4,841,140 |
Real-time color comparator A real-time color comparator which performs color comparisons of sample objects to a reference color for the purpose of identification, sorting or matching. Two... |
| US-4,841,139 |
Method for testing components of transparent material for surface
irregularities and occlusions A method for testing components of transparent material for surface irregularities and occlusions, comprising the steps of dot-scanning the component by moving a... |
| US-4,841,138 |
Photosensitive position sensor with logarithmic conversion A position sensor has a photosensitive element including a pn junction formed between first and second electrodes for providing first and second photocurrents... |
| US-4,841,137 |
Beam position control device A beam deflector device in which two light beams from two light sources are simultaneously applied through movable reflectors to a beam deflector scanning a... |
| US-4,841,136 |
Sighting apparatus with automatic correction mechanism A sighting apparatus comprising an optical system which includes a laser oscillator and an automatic correction mechanism mounted on a rotational table, wherein... |
| US-4,841,135 |
Rotary light beam deflector with revolution surface mirror A method of correcting unevenness in scanning lines in a light beam scanning apparatus having a mechanical scanning light beam deflector which rotates about a... |
| US-4,841,134 |
IC card The IC card of the present invention comprises an IC card comprising an IC module embedded in a card substrate, said IC card having a reinforcing sheet layer... |
| US-4,841,133 |
Data card circuits An integrated circuit for a data or "smart" card includes a non-volatile memory (8) having a transport code preprogrammed therein, control circuitry (10), a... |
| US-4,841,132 |
Program recording scheduling apparatus using an optical reader The desired program information are read by an optical bar code reading section from a program medium containing program information for automatic broadcast... |
| US-4,841,131 |
Portable electronic device with means for checking data validity during
read-out A portable electronic device having a data memory, constituted by a nonvolatile memory, for storing transaction data, and a central processing unit for... |
| US-4,841,130 |
Odometer A disk on a wheel-tpe odometer assembly is provided with a integral spring pawl that operates with the normally provided transfer teeth on the highest number... |
| US-4,841,129 |
Pattern recognition device A scanning device for reading bar codes symbols comprising at least two moveable, preferably rotatably driven, reflective surfaces, such as mirrors, which direct... |
| US-4,841,128 |
Circuit unit A circuit unit is described, comprising an integrated circuit disposed on a substrate as its carrier and coupling elements for energy transfer, data output and,... |
| US-4,841,127 |
Dual temperature hair curler utilizing a pair of PTC heaters A dual temperature hair curler has a hollow heat transmitting metallic barrel enclosing a pair of PTC heaters connected in series to each other and electrically... |
| US-4,841,126 |
Rotary table wire EDM machine A method and apparatus control relative movement between an electrode of an DM machine and a workpiece. The method provides for positioning each point of a path... |
| US-4,841,125 |
Control unit for a heating system with memory means A control unit for a heating system such as a microwave oven comprises a RAM into which cooking programs of many menus are transferred from one of a plurality of... |
| US-4,841,124 |
Strain-resistant heated helicopter rotor blade Wire is flat braided into a straight component on a braiding machine, and carrier threads keep the component from deforming as it is drawn off the machine. The... |
| US-4,841,123 |
Automatic welding device An automated welding device for applying a weld overlay to a preexisting weld at the saddle-shaped juncture between a horizontal header pipe and a vertical riser... |
| US-4,841,122 |
Humidifier having a heating chamber with a continuously open drain and
flushing outlet A humidifier has an improved bottle wherein a continuously open drain outlet is located at the lower extremity of the bottle, a drain pipe being connected to the... |
| US-4,841,121 |
Hot heading plastic rivets by resistance heating Welding apparatus including a tube of high resistance material brazed between two electrical conductive tubes connected to the secondary of a resistance welding... |
| US-4,841,120 |
Thermal head A thermal head which is reduced in restriction in dimension of a substrate to allow reduction in size thereof and wherein the contacting characteristic of the... |
| US-4,841,119 |
Welding wire The invention relates to a welding electrode with smooth surface for gas shielded arc welding, comprising a steel substrate provided with a thin, ferrous oxide... |
| US-4,841,118 |
Orbital weld head tool An orbital weld head tool (10) has an orbiting and reciprocating carriage (22) for movement around a mandrel (12) fixed to a workpiece. Reciprocation is by a... |
| US-4,841,117 |
Method for lengthening the blading aerofoil of turbo machinery blades In this method of lengthening the blade aerofoil (5) of turbo machines by building up with weld in the assembled condition of the blades, the position (4) to be... |
| US-4,841,116 |
Process for automatic fusion welding of rails A process for automatic fusion welding of rails by a combination of submerged arc welding and electroslag welding, comprising a root run for welding a rail base... |
| US-4,841,115 |
Orbital weldhead A weldhead for welding small diameter tubing in confined spaces. The weldhead includes a welding body and a separable cartridge. The cartridge has a pair of... |
| US-4,841,114 |
High-velocity controlled-temperature plasma spray method and apparatus A surface discontinuity is formed along an anode nozzle bore sufficiently upstream of a nozzle exit orifice and of a sufficient size to cause an arc between an... |
| US-4,841,113 |
Welding control apparatus and method A welding control apparatus and a method for controlling thereof for automatic welding machines having a welding gun successively moved by a robot to a plurality... |
Copyright 2008−2012 Patents.com
