Matches 1 - 50 out of 66 1 2 >


Match Document Document Title
8004385 Electrical protective device  
An electrical protective device is described which has two PTC thermistor components which are in the form of plates and are arranged in a common housing. The housing in each case has an opening...
7439473 Method and arrangement for supporting vertically depending electrical resistance elements  
A method of supporting vertically hanging electrical resistance elements for heating furnaces or ovens in industrial operations. Each resistance element includes current-conducting legs that...
6670881 Positive temperature coefficient resistor/overload resistor method and assemblies  
A method for retaining a terminal of a terminal assembly for a positive temperature coefficient resistor/overload resistor (PCTR/OL) assembly includes providing a body having an inner surface, and...
6617955 Positive temperature coefficient thermistor  
An inexpensive positive temperature coefficient thermistor has metal terminals which have been miniaturized without deteriorating the characteristics or sacrificing the reliability of the device....
6407659 Electronic device  
A positive thermistor element is supported by being clamped by first and second resilient contact members that are opposed to each other so as to be disposed along a diagonal and first and second...
6317024 Resistor for audio equipment  
A resistor 1 is used in high-fidelity amplifiers for audio equipment. The resistor 1 includes a cylindrical resistor body 2, a tubular sheath 3 into which the resistor body 2 is coaxially...
6208233 Trim resistor connector and sensor system  
An improved IDC trim resistor connector assembly made up of a generally open top cup shape connector with side wall slots and an interior first array of terminal posts arranged for passage...
6169472 Thermistor system  
A PCT thermistor arrangement for use in a circuit for demagnetizing shadowmasks of color picture tubes, has at least two PTC thermistor elements which are designed as switching PTC thermistors,...
5963125 Electronic devices having reduced destruction of internal elements upon malfunction  
A positive thermistor device includes a positive thermistor element having a pair of opposed electrodes, each of which receives compressive force elastically applied from a corresponding one of...
4602238 Infrared panel emitter and method of producing the same  
A nonfocused infrared panel emitter and method of making the same. The panel emitter includes a primary emitter positioned between an insulating layer and a secondary emitter. Preferably, the...
4273993 Terminations for electric heating elements  
The invention relates to a termination for a tubular electric heater, comprising a two-piece body of ceramic or high-temperature plastic which is quickly and easily assembled with a metal spade...
4149067 Aquarium heater  
An aquarium heater including an elongated heater element including an insulating member and a wire heater extending from one end of the insulating member to the other end of the insulating member...
4004128 Portable electric radiant heater  
A portable electric radiant heater comprises an insulative housing having a control area and an open front heating area. A hollow fired clay pipe system is disposed in the heating area in...
3461275 INFRARED QUARTZ HEATER  
3308272 Electric space heater  
3100289 Microwave attenuators with low d.c. resistance shunt path  
2860222 Title is not available  
2844694 Radiant heater and replaceable element therefor  
2778866 Title is not available  
2690491 Therapeutic heater unit  
2664487 Electrical resistor  
2646490 Core for immersion heaters  
2596837 Heater element  
2576976 Vaporizing apparatus  
2562940 Shielded resistor unit  
2556973 Cycler  
2542468 Electrical regulator  
2421321 Gaseous conduction lamp socket  
This invention relates to gaseous conduction lamp socket pilot light assembly and more particularly for use with neon pilot lamp of low wattage. In lamps of the neon type it is desirable to...
2372150 Resistor  
My invention relates, generally, to resistors, and it has reference in particular to enclosed resistors. Generally stated, it is an object of my invention to provide an enclosed resistor which is...
2293552 Resistor  
This invention relates to new and novel resistors of small internal and stray capacitance which are particularly adapted to high frequency circuits. This application is a continuation in part of...
2287402 Core for immersion heaters  
Our invention relates to improvements in immersion heaters of the type using a heating element of metal which is electrically of high resistance. Conventionally such a heating element is inserted...
2213969 Electrical resistance element  
This invention relates to resistance elements and methods of making the same. This application is a continuation in part of my copending application Serial No. 71,365, filed March 28, 1936. The...
2213632 Circuit tester  
This invention relates to a circuit tester which is particularly adapted for testing the circuits of the ignition and lighting systems of automobiles. One object of the invention is to provide a...
2181484 Electric heating element  
My invention relates to electric heating elements, which are designed to be used in connection with the re-refining of used lubricating oil such as is described in my copending application, Serial...
2111220 Electrical resistor  
This invention relates to electrical resistor units and refers particularly to fixed resistor units used in radio circuits and especially radio receivers. Fixed resistors of this type now...
2092815 Cathode heater insulation  
My invention relates to indirectly heated thermionic cathodes and to heaters for such cathodes, and more particularly to refractory insulation for cathode heaters and to an improved method of...
2062163 Resistance unit and mounting therefor  
My invention relates to an improved protective resistance and mounting therefor. In modern alternating current generating and distributing stations, the potential transformers are employed to...
2053423 Vertical type boiler heater  
My invention relates to water heaters and particularly to heating units for steam boilers. An object of my invention is to provide a relatively simple and easily manufactured and assembled heating...
2050334 Lightning arrester  
This invention pertains to improvements in lightning arresters. Present types of arresters are designed to conduct lightning discarges through a path of high resistance. This path should withstand...
1970149 Resistance device  
1772893 Electrical resistance unit and terminal  
1715287 Electric heating element  
1693899 Grid leak  
1525831 Electrical heating unit  
1499367 Apparatus for hair waving  
1473002 Water heater  
1451529 Resistor element  
1407918 Electric heating element  
1408403 Electric heating device  
1401500 Electric heater  

Matches 1 - 50 out of 66 1 2 >