Abstract: An operating mechanism for a rectilinear motion circuit-breaker, for performing an open-close-reopen cycle, and operating on an operating rod of the circuit-breaker and including closing and opening springs. The opening spring operates on the operating rod. The closing spring operates on a crank end whose other end is connected to a shaft fastened to a flywheel and on which is mounted a closing cam cooperating with a roller on the operating rod. A closing pawl retains the closing spring in a compressed position, opening the closing pawl releasing the closing spring to rotate the cam, thereby closing the circuit-breaker and rearming the opening spring. A rearming motor couples to the shaft by a freewheel. A pawl triggers opening retaining the operating rod against force of the opening spring in the closed position of the circuit-breaker and is adapted to receive an opening command.

Abstract: The present invention is a child seat detecting apparatus for detecting the presence of a child seat in a vehicle. The child seat detecting apparatus is a tension sensing device that is attached to a vehicle seat. The tension sensing device includes a bracket that is mounted to the vehicle seat. A moveable bar is retained by the bracket. The moveable bar is attached to the child seat. A sensor is mounted between the bracket and the moveable bar. The sensor is adapted to provide an electrical signal that is indicative of a magnitude of tension on the moveable bar. A spring is located between the bracket and the moveable bar. The spring biases the moveable bar away from the bracket.

Abstract: A circuit breaker has a threaded collar fixed on a breaker housing and an approximately cylindrical actuating element displaceably guided in a bore of the threaded collar and partially protruding from the breaker housing for manual push-pull actuation in an advantageous way on the actuating side. In order to seal the circuit breaker, a sealing ring seals an annular gap formed between the wall of the bore and the circumference of the actuating element.

Abstract: An electric switch of mechanical structure and functioning, and with electric contacts by means of membranes, suitable for optionally arranging seven different control signals by means of other such contact positions selectively induced by a single button means, four of these positions are differentiated when a slight rolling movement is carried out on said button means in any of four opposite directions and 90° equidistant from each other, a fifth contact position in its clockwise axial rotation, the sixth position by means of its counter-clockwise rotation, and a last contact position by means of a linear pulsating movement.

Abstract: Outer ends of link members supported to a case and having their inner ends coupled to each other are coupled to a slider. A membrane sheet and a pusher are disposed one after the other on the slider, and a knob having molded therewith a surface sheet is fixed to the slider. On a bottom plate are mounted a tactile push-button switch and a light source. No matter which press area is depressed, the slider is uniformly translated by the link mechanism to actuate the push-button switch. The link mechanism, the slider, the membrane sheet except conductor portions, and the pusher are formed of a light transmitting material.

Abstract: An actuating element for an electric switch, especially for a steering wheel switch in a motor vehicle, impinges upon at least one switching contact and is pivotally mounted on a housing of said switch. A firm hinge is provided as a bearing, connecting the actuating element to a latched wall. The wall runs parallel to the wall of the housing or replaces the wall of the housing.

Abstract: A switch having independently operable toggle and rocker functions. The switch having a housing, a toggle member pivotally mounted in the housing, the toggle member having upper and lower portions. The upper portion being movable for providing a toggle function of the switch, the lower portion being attached to the upper portion and having at least one first contact element coupled thereto. The switch having a rocker member coupled to the housing for providing a rocker function, the rocker member defining a central opening for receiving the upper portion of the toggle member, and having a second contact element coupled thereto. The switch including a circuit board inside the housing having a first conductive portion adjacent the first contact element, and a second conductive portion adjacent the second contact element. The toggle and rocker members being independently operable for providing toggle and rocker functions of the switch respectively.

Abstract: A process for manufacturing surface mountable electrical devices includes the steps of preparing a PTC resistive plate, covering the plate with first and second conductive layers to form a laminate, forming a plurality of spaced apart bores of cross-shaped cross-section in the laminate along intersecting cutting lines at locations where the cutting lines intersect, electroplating the first and second conductive layers and the cross-shaped bores, and cutting the laminate along the cutting lines to form a plurality of polygonal elements with each of the bores being divided into four parts, each having a substantially L-shaped cross-section.

Abstract: A coil former for constructing coil transformers. The coil former comprises a rectangular casing having a central interior cavity. The casing is configured to form the coil for the transformer and connect and align a pair of transformer cores to form a substantially homogeneous transformer core. The casing is further configured to connect the coil leads to the homogeneous transformer core to produce a coil transformer.

Abstract: A female type terminal for a large current, an assembling method of the female type terminal, and a connector housing for the female type terminal are provided, wherein a female type terminal includes: a male type terminal being in a rod-like shape; a female type terminal having a cylindrical terminal body in which the male type terminal is inserted, the terminal body having a large diameter portion at the end thereof; a cylindrical spring contact to be accommodated in the female type terminal and to be put into elastic-contact with the male type terminal; and a cap member having an introductory opening to introduce the male type terminal into the terminal body and having a stopping wall continuing from the introductory opening, the cap member being molded out of synthetic resin, wherein the stopping wall of the cap member is inserted into the large diameter portion and an end surface of the stopping wall abuts against the spring contact accommodated in the terminal body, whereby the spring contact is held in

Abstract: A resistor network for terminating active electronic circuits such as stub series terminated logic and emitter coupled logic circuits. The network has a substrate with top and bottom surfaces and a common via extending through the substrate. Several resistor pairs are located on the first surface surrounding the common via. Each resistor pair has first and second vias. Resistors are connected between the first and second vias. Several solder spheres are located on the bottom surface. Each of the solder spheres are electrically connected to one of the first, second or common vias.

Abstract: A method of fabricating a monolithic chip varistor includes the steps of preparing a varistor body including a plurality of varistor layers and at least one pair of internal electrodes; forming a first layer for each of a pair of external electrodes by applying a metal component and a glass component to an exterior portion of the varistor body, followed by heat treatment; forming a second layer for the external electrode on the first layer by applying a glass component, followed by heat treatment; forming a third layer for the external electrode on the second layer by applying a glass component that is different from the glass component used for forming the second layer, followed by heat treatment; forming a fourth layer for the external electrode on the third layer by applying a metal component that is different from the metal component used for forming the first layer, followed by heat treatment under the same heat treatment conditions as those used for the formation of the first layer; and forming a fifth

Abstract: An electrical contact includes a main body having a contact arm (11) extending from a lower portion thereof, a tail (13) extending from an upper portion thereof, and a retainer (13) projecting from the main body between the contact arm and the tail. A cutout (133) is defined in a surface of the tail opposite a surface designed to engages with a PCB. A guiding slot (132) is defined in the main body of the contact between the tail and the contact arm opposite the retainer. When the tail is soldered to the PCB, any excess solder will flow along the contact. The cutout provides an obstruction and the guiding slot provides a surface area for the solder to solidify on the contact without covering a portion of the contact arm and hindering signal transmission.

Abstract: The PTC thermistor material of the invention comprises a matrix phase and electrically conductive phases substantially uniformly dispersed in the matrix phase, said conductive phases having a resistivity lower than that of the matrix phase, and has a resistivity changing sharply in the vicinity of the melting point of the conductive phases. The matrix phase is made up of any one of a polycrystalline ceramic material, a glass-polycrystalline ceramic composite material, a glass, a crystallized glass, and a polymer material, and the conductive phases are made up of a metal containing bismuth as a main component. It is thus possible to achieve a PTC thermistor material which can be controlled in terms of various properties such as the temperature at which PTCR property becomes available and the rate of resistivity change and so can be applied to circuit parts through which large currents pass in a normal operation state.

Abstract: An accelerator module for an electric vehicle has a pivotal actuator upon which is mounted a wiping element for wiping engagement with variable and constant resistance elements formed upon a printed circuit board mounted within a housing. A normally-open switch mechanism is also mounted upon the printed circuit board, and in order to delay the closure of the normally-open switch mechanism from its OPEN state to its CLOSED state, the actuator is provided with a spring-biased overtravel plunger mechanism which engages a push-button element of the switch mechanism so as to retain the switch in its OPEN state until the actuator has been moved a predetermined distance corresponding to a predetermined amount of depression of the accelerator pedal of the electric vehicle.

Abstract: A laminated-type varistor includes a laminated structure and a pair of external electrodes disposed on a surface of the laminated structure. The laminated structure includes effective sintered body layers and internal electrodes. The internal electrodes are connected to the external electrodes and are disposed apart from each other in the direction perpendicular to lamination surfaces. Each of the internal electrodes has a multilayer electrode structure in which a plurality of electrode layers are arranged in layers while an ineffective sintered body layer is disposed therebetween. The laminated-type varistor has increased maximum peak current and maximum energy and reduction in clamping voltage.

Abstract: A Positive Temperature Coefficient of Resistance resistor includes a ceramic material of the composition [(Ba.sub.1-e-x Sr.sub.x R.sub.e).sub.1-a M.sub.a ][(Ti.sub.1-b-d N.sub.b Q.sub.d)].sub.c O.sub.3, wherein M is a trivalent or quadrivalent element or a mixture of two or several of these elements; N is a quinquevalent or hexavalent element or a mixture of two or several of these elements; Q is a quadrivalent element or a mixture of two or several of these elements; R is a bivalent element or a mixture of two or several of these elements; and 0.5.ltoreq.x.ltoreq.1, a is 0 or 0.0003.ltoreq.a.ltoreq.0.3, and b is 0 or 0.0003.ltoreq.b.ltoreq.0.3, 0.8.ltoreq.c.ltoreq.1.2, 0.ltoreq.d.ltoreq.0.2, and 0.ltoreq.e.ltoreq.0.2.

Abstract: A resistive temperature sensor is constituted by an insulating body mainly composed of alumina; and a temperature sensing resistor mainly composed of a conductive material containing a metal silicide. The insulating body and the temperature sensing resistor are laminated and sintered to form a lamination sintered body in which a resistance circuit is formed.

Abstract: A PTC thermistor has a disk-shaped main body with electrodes on its main surfaces which are facing mutually away from each other such that, during an initial period after a potential difference is applied between these electrodes, the side surface of the main body has an asymmetric temperature distribution between the electrodes in the direction normal to its main surfaces. The heat emission does not have a peak half-way between the electrodes in the direction of the thickness such that the thermistor has an improved resistance against flash pressure. This may be done by forming the electrodes in different sizes or by providing a non-uniform distribution in specific resistance to the main body such that the heat-emission peak is displaced from the center region between the two main surfaces of the main body.

Abstract: A variable resistor comprises a case, slide contactors, a rotor, a metal cover and lead terminals. Arms which are respectively provided at central portions of the slide contactors protrude from a bottom surface of a recess portion of the case and are each shaped like a comb. The arms are respectively contacted, at contact portions A, B and C, by electrodes and resistor of the rotor. Lead terminals are each circular in cross section and are respectively connected, at end surfaces of their lead wires, to the slide contactors. This makes it possible to obtain a variable resistor which is easy to manufacture, low in cost and excellent in reliability.