Abstract: An embodiment of the present invention provides a direction indicating device for generating a 2D direction indicating signal, which includes a base board, a first rectangular conductive plane formed on the base board, including a first sliding slot, a second rectangular conductive plane formed on the base board, overlapping the first rectangular conductive plane, and including a second sliding slot, a positioning axle perpendicular to the base board, passing through a space corresponding to overlap portions of the first sliding slot and the second sliding slot, for moving the first conductive plane along a first direction, and moving the second conductive plane along a second direction, and a control signal generating module for outputting the 2D direction indicating signal according to electric information of the first conductive plane and the second conductive plane.

Abstract: A cooking appliance includes a cooktop having at least one heating zone having first and second heating elements and a control element for setting a desired cooking temperature for the heating zone. When the control element is rotated in a first direction, only the first heating element will be activated and, when rotated in a second direction, both the first and second heating elements are activated. The control element includes a variable resistor that changes resistance as the control element is rotated through nearly 360° to alter the operational state of the heating element(s). A controller senses the change in resistance and determines in which direction the control element is rotated so as to activate the appropriate heating element(s).

Abstract: A digitally adjustable rheostat and/or potentiometer in a low cost integrated circuit package having a minimum number of connection pins is configurable with a memory and switch included in the integrated circuit. The switch is coupled to one or both ends of the potentiometer and configures the digitally adjustable rheostat and/or potentiometer so that a minimum number of integrated circuit package pins are required for external circuit connection to the rheostat and/or potentiometer.

Abstract: A variable resistor includes a circuit board having a conductive layer and a plurality of impedance layers arranged under the conductive layer, a slide having a metal contact plate movably mounted over the conductive layer and the impedance layers, wherein the impedance layers and the conductive layer have electric contacts respectively connected to circuit devices, output potentials at the electric contacts being relatively changed when the slide is moved with over the metal conductive layer and the impedance layers thereby controlling current flowing through the circuit devices.

Abstract: The potentiometer includes a ground terminal 1, a power terminal 2, a resistive element 4 provided between the ground terminal 1 and the power terminal 2, a sliding portion 18 for sliding on the resistive element 4, an output terminal 3 for obtaining the output in response to the position of the sliding portion 18, a reference voltage terminal 5 provided on a reference position RP where a reference voltage Vref should be generated, and a power supply 6 for applying the reference voltage Vref to the reference voltage terminal 5. The reference voltage terminal 5 is provided on the reference position RP where the reference voltage Vref should be generated. The reference voltage Vref is sustained at the reference position RP, because the power supply 6 applies the reference voltage Vref from the reference voltage terminal 5 to the resistive element 4. The offset can be adjusted rapidly due to the regulated voltage at the reference position RP in spite of a productive variation of the resistive element 4.

Abstract: A sliding contact includes a sliding contact piece having a contact segment and fixed to a snap member extending perpendicularly to the contact segment. The snap member has at least two snap portions formed in alignment perpendicular to the contact segments including one adjacent the contact segments which is adapted to be concentrically fitted onto a mounting projection of a slider and another apart from the contact segments which is adapted to keep the angle of the contact segments to the slider. Also, there is a connecting contact with at least two holding arms for nipping therebetween a substrate on both sides thereof, at least one of the holding arms having a projection to be inserted in a hole or recess preliminarily formed in the substrate. After the projection is received in the hole or recess, it is fixed by a conductive anchoring material such as solder, so that the connecting contact may be fixedly attached to the substrate.

Abstract: A voltage dividing resistor device comprises a pair of electrode terminals applied with a voltage, a plurality of resistor bodies coupled between the pair of electrode terminals, an electrode terminal through which a divided voltage is obtained from an intermediate point located among the plurality of resistor bodies, and at least one conductor part formed to overlap with a part of at least one of the plurality of resistor bodies. An effective length of the resistor body which has a part thereof overlapping with the conductor part, is shortened by a length of the conductor part. The length of the conductor part is set depending on the divided voltage which is to be obtained.

Abstract: In a rotary variable resistor wherein variable resistors which are operated by inner and outer shafts independently of each other are received in a single case; an unrotatable plate member having both its surfaces smoothed is interposed between the inner and outer shafts so as to prevent these shafts from turning together undesirably.

Abstract: Disclosed is a variable resistor of the slide type incorporating a pair of resistor units carried on the same base plate and disposed in parallel with respect to each other. A plurality of conductive taps angle outwardly from a resistance member provided in each of the resistor units and a pair of sliders can be slidingly moved along and in contact with the series of the plurality of conductive taps in the pair of conductor units, respectively, but do not contact the resistance members directly.

Abstract: The device of this disclosure, hereafter referred to as a "two digit resistance decade box," is a new design of resistance decade box that offers two digit setting accuracy, ease of setting, and improved economy of components. The specifications include a comparison of performance and fabrication economy with the simple resistor substitution box and the conventional resistance decade box. A circuit diagram of the device is presented and explained.

Abstract: A vernier control (10) with independent coarse and fine adjustments includes a track pattern (17) that is formed along three concentric rings on a single base (11). A horseshoe-shaped, low-resistance track (17a) extends around a segment of the inner ring and has a pair of termination tracks (17d, 17e) connected to its opposite ends and extending in reverse directions in opposite half-sections of the intermediate ring. A pair of high-resistance tracks (17b, 17c) are formed in opposite half-sections of the outer ring, each extending alongside a respective termination track (17d, 17e). A fine adjustment rotor (16) is journaled in the base (11) in the center of the track pattern (17), and carries a fine adjustment contact (15) that engages both a collector terminal (19) on the base (11) and the low-resistance track (17a). An annular contact carrier (12) is mounted for rotation around the rotor (16) and carries a pair of coarse adjustment contacts (13 ).

Abstract: An apparatus for the control of variable speed electrical positioning drives, especially for sewing machine positioning drives, is disclosed in two exemplary embodiments. The apparatus provides a preset nominal value of speed and a range of adjustment for additional signals in digital form, thus making possible a continuous or incremental change in the nominal value as well as additional digital signals. The apparatus includes lamellar contact elements of a potentiometer arranged on a base element in the path of a slider for the nominal value of speed and at least one low resistance lamellar contact element arranged in the slider path for producing an additional digital signal.

Abstract: A compact electrical control, such as a potentiometer, a rheostat, or a switch includes a housing and a shaft rotatably mounted within the housing. The housing has a cavity for receiving a resilient annular seal surrounding the shaft, and the shaft is provided with a radial pressure plate that bears against the seal. A rotary assembly composed of resistance or switch elements is mounted on the shaft between the pressure plate and a journaled end of the shaft, and the resistance or switch elements are contacted by stationary contacts held in the housing. The seal is axially compressed between the pressure plate on the shaft and a cavity end wall, and is radially compressed between a circumferential side wall and the shaft, so that the seal both prevents liquid from entering the housing along the shaft and controls axial end play of the shaft.

Abstract: A multiple output potentiometer network having a low resistance zone to provide the output function characteristic and a high resistance zone with which each of a plurality of output contacts is in contact providing a high degree of electrical isolation between the output contacts of said plurality.

Abstract: A heating regulator which is responsive to effective outdoor temperatures and the temperature of a heated fluid supplied by a boiler. The regulator has an adjustably positionable pointer which represents a characteristic curve. The regulator includes three slide members with the pointer being pivotally mounted on one of the slide members for a translatory movement therewith and pivotal movement relative thereto. Two potentiometers are operated by two of the slide members and one of the slide members actuates the third slide member which in turn effects pivotal movement of the pointer.