Abstract: In a chip-type electronic component of the present invention, at least one surface of a ceramic body is a convexly curved surface. Specifically, at least one surface in a thickness direction of the ceramic body may be convexly curved, and the side surface of the ceramic body may be concavely curved. Alternatively, only one surface may be a convexly curved surface. This chip-type electronic component has a high visibility and a high mechanical strength, though it is small. Moreover, in a chip-type electronic component comprising a ceramic body that is formed by alternately laminating insulating layers and conductor layers, and a pair of external electrodes, the thickness in a laminate direction at the central part between external electrodes of the ceramic body is made greater than the thickness of the end surface. This prevents breakage of the external electrodes and also enlarges the ceramic body.

Abstract: A method and apparatus for a stacked power chip resistor is disclosed. The invention provides for multiple power chip resistors to be stacked, providing for encapsulant such as glass to separate each power chip resistor and a metal barrier such as nickel plating on each end of the stacked power chip resistor to provide for electrical and mechanical connection of each power chip resistor in the stack.

Abstract: In accordance with the invention, a temperature compensating device comprises one or more integrated sheet thermistors. Because the sheet thermistors are relatively thick and integral with the substrate, they are less susceptible to changes in air temperature and to temperature gradients. Moreover, the sheet thermistors can be made smaller in area, permitting more compact, less expensive devices that exhibit improved high frequency performance. The devices can advantageously be fabricated using the low temperature co-fired ceramic (LTCC) process.

Abstract: A resistor for driving a motor for an air conditioner blower is provided, in which internal resistance bodies are stacked over one after another between insulation plates in the resistor, to accordingly reduce the volume of the entire of the resistor is reduced, and the resistance bodies are separated into a plurality of metal thin plates not a single plate and stacked over one after another, to thereby increase a line width. Also, a temperature fuse is disposed externally. The air conditioner fan blower motor driving resistor is obtained by stacking resistance bodies made of at least two metal thin plates over one after another. The resistance bodies are formed of an independent resistance body forming a second resistance body and a third resistance body on two separate thin plates, and another independent resistance body forming a first resistance body on another thin plate.

Abstract: An air side cover is attached to a proximal end of a housing so as to confine an aerial atmosphere therein. A measured gas side cover is attached to a distal end of the housing so as to confine a measured gas atmosphere therein. A glass sealing material airtightly seals a clearance between an inner surface of an insulator and an outer surface of a sensing element. A contact interface of the glass sealing material protrudes toward a proximal end of the gas sensor compared with at least an adjacent portion of the remainder of the glass sealing material. By melting and hardening a glass pellet, the sensing element is airtightly fixed in the insulator.

Abstract: An electrical device comprising a pair of electrodes, three substrates, and PTC elements inserted between the substrates, each PTC element having metal layers on both surfaces, in which each of the outer substrates has a metal layer on the inner surface, the two metal layers being electrically connected to one of the electrodes and in electrical contact with the respective metal layers of the PTC elements facing said metal layers of the outer substrates, and the center substrate has a metal layer on both surfaces, such metal layers being electrically connected to the other electrode and in electrical contact with the respective metal layers of the PTC elements facing said metal layers of the center substrate. This electrical device can increase the area of the PTC elements without increasing the projected area as a whole.

Abstract: A multicell heater is shown with typically round outer tubing, containing a plurality of resistive heating elements having a common inner sheath. The inner sheath has a preferably non-circular cross-section and is given a hairpin bend to form a “U” shape. The resulting configuration, which is much less expensive than conventional multicell heaters, provides efficient heating at the toe end—a usually unheated (“cold”) zone in conventional multicell heaters.

Abstract: A resistor network has a substrate with top and side surfaces. Resistors are located on the side surfaces. Several side conductors are located on the side surface and are electrically connected to the resistors. Several top conductors are located on the top surface and are electrically connected to the side conductors. Each top conductor has a cavity. A solder sphere is partially located in the cavity and is electrically and mechanically connected to the top conductor by reflowed solder paste. A cover coat covers the side conductors and the resistors. The resistor network provides a high density of resistors per unit area.

Abstract: There is described mineral-insulated metal-sheathed (MINS) cables in which the sheath alloy has the following compositions:______________________________________ Element Concentration (wt. %) ______________________________________ Cr 10 to 40 Si 0.5 to 5.0 Mg 0.5 Maximum Ce 0.3 Maximum Mo 20 Maximum W 25 Maximum Nb 10 Maximum Ta 8.0 Maximum Ni balance ______________________________________and thermocouples, heating elements, and heat detectors made therefrom as well as the alloy itself is also claimed.

Abstract: A resistance temperature detector measures the temperature of fluid flowing through a pipe at a given point in the pipe. In the temperature detector, normal and backup temperature sensing resistance elements are secured with inorganic adhesive onto an inner wall surface of a thin-walled tubular sheath having its tip end closed. These temperature sensing resistance elements are disposed in spaced parallel relationship and are respectively connected to insulated lead wires separately disposed within the resistance temperature detector. The resistance temperature detector also includes a sheath cable assembly having sheathed cables, each of which is electrically connected to a respective one of the insulated lead wires and secured to the other end of the tubular sheath. Thereby a sealed vacant space is defined within the temperature sensing assembly.

Abstract: In a glow element with a glow tube (30) closed at the outer end, in which there at least two series-connected resistors (10, 11), whereby one of the at least two resistors being conductively connected by one end to the closed end of the glow tube and the opposite end of the series-connected resistors being connected to an internal pole (9) projecting into the glow tube from the other end thereof, in order to permit an external wiring of part of the resistors in the glow element, the internal pole (9) has a tubular construction and at least one electrical conductor (8) is passed through the internal pole and is connected to a junction (12) of the at least two resistors (10, 11).

Abstract: An electrically heated spray nozzle, such as for spraying plastics, includes a highly compressed tubular heating body wound about a spray nozzle as a plurality of coil windings. The heating body has a tubular steel inner jacket containing a pair of spaced electric heating elements embedded in a high compressed powdered insulating material. A copper outer jacket encases the inner jacket and a hard solder connection joint as least as broad as the diameter of the outer jacket connects the outer jacket and hence the heating body to the nozzle. The number of coil windings per unit length of nozzle body is larger near the ends of the nozzle than near its middle. A steel wear-resistant lining may cover the surface of the nozzle bore.

Abstract: An electrical heating cartridge comprises a jacket, preferably of metal, at least one electrical heating coil and a thermocouple element positioned in the jacket which are imbedded with clearance from each other and from the jacket in a specially packed insulating material, wherein the electrical lead conductors of each of the electrical heating coils and the thermocouple element are guided out of a first end piece of the electrical heating cartridge. So that a rapid, controlled, uniform heating of the entire length of the cartridge is attainable, at least one electrical heating coil is directed toward a second end piece opposite to the first end piece of the cartridge and extended over and beyond the thermocouple element until adjacent the second end piece.

Abstract: The electric heater herein disclosed is particularly adapted to heat a fluid and to provide a broad, substantially flat heater surface exposed to the fluid to be heated. The heating element is well adapted for deep fat frying use in that it is of high voltage and is economical to manufacture. The invention makes use of standard elongated, tubular, metal-sheathed heaters which are produced in large quantities for a multitude of uses. Such elements are slid into a metal tube of selected diameter and wall thickness, and the assembly is flat-pressed in appropriate sections with the ends round for termination with such fittings as are required. The assembly may then be bent to produce a desired configuration.

Abstract: A sheathed electric heater especially of the type used as diesel engine glow plugs has a dual coil heating element including separate tip heater and PTC body control coils thermally isolated by a low resistance connector section made from interengaging small diameter coiled connector portions integral with the tip and body coils and preferably welded together. Preferred material and dimensional specifications and pertinent design considerations are also included.

Abstract: A method and apparatus for parallel-type heating cables. In accordance with the present invention a heating core element is formed by connecting two essentially parallel bus wires with a plurality of electrically conductive splices to a centrally disposed resistive element and around which heating core element a protective sheath is formed. The present invention permits this heating core element to be formed by splicing the spaced apart, essentially parallel wire elements followed by a single extrusion application of a protective sheath.

Abstract: Means for varying the heating rate of an immersion heater in a hot-water extraction unit comprising a solution tank in which an electrical immersion heater is mounted in order to decrease the warm-up time of the unit. In the preferred embodiment, the means comprise (a) a first heating element having a first watt rating; (b) a second heating element having a second watt rating, lower than the first watt rating; and (c) means for selectively actuating one or the other of the two heating elements.