Abstract: An electrical assembly including a conductor arrangement and a dual resolution potentiometer electrically connected to the conductor arrangement. The dual resolution potentiometer includes a first resistive element having a first adjustment mechanism and a second resistive element having a second adjustment mechanism. The first adjustment mechanism being coupled in a hysteresis arrangement to the second adjustment mechanism.

Abstract: A slide-type variable resistor comprises a shell, two side guiding tracks, two end locking parts, a variable resistor circuit base, and a manipulating device. The two side guiding tracks are symmetrically assembled in the allocation space. The two end locking parts are symmetrically pressing against the two side guiding tracks respectively to have the two side guiding tracks positioned in the allocation space. The variable resistor circuit base is assembled to the shell and utilized for pressing against the two end locking parts to have the two end locking parts and the two side guiding tracks fixed in the allocation space. The manipulating device comprises a brush base, at least a brush, and a bar. The brush base has two symmetrically positioned sliding tracks slidably positioned in the two side guiding tracks. The brush is connected to the brush base and has elastic recovery to press against the variable resistor circuit base.

Abstract: An actuator and integral position sensor has increased reliability with a fail-safe mode. The actuator and sensor assembly includes a rotary actuator that has a driving shaft. A sensor rotor has the driving shaft mounted in a bore. A contactor is mounted to an outer edge of the rotor. The contactor is engaged with a resistor film as the rotor rotates. A driven shaft is mounted to the rotor in another bore. The rotor couples the driving shaft and the driven shaft together.

Abstract: An electrical switch device includes a thick film switch element having a low temperature co-fired dielectric substrate, electrical conductor tracks embedded in the substrate and having a surface substantially flush with the substrate surface, and wiper contacts in sliding engagement with the conductor tracks. The switch is useful for position sensors, throttle controls, and digital encoders. A method of manufacturing a thick film switch element includes providing a low temperature co-fired dielectric substrate in a green state, depositing an electrically conductive material onto a face of the substrate, pressing the conductive material into the substrate until the material is substantially flush with the substrate face, and then firing the substrate and conductive material.

Abstract: There is provided a variable resistor comprised of a resistor formed at a movable member arranged to be reciprocatable, and a slider element attached to a fixing member fixed in opposition to the movable member, slidingly contacted with the resistor. The resistor has the first resistor, the second resistor and the third resistor extending in a reciprocating direction of the movable member and electrically independent from each other, a first resistor pattern having one end of each of the first resistor and the second resistor connected to each other, a second resistor pattern having the other ends of the second resistor and the third resistor. The slider element is comprised of the first slider element, the second slider element and the third slider element slidingly contacted with the first resistor, the second resistor and the third resistor.

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: A flexible element for use in a rotary position sensor or the like having the direction of electrical traces on one surface of the element altered without putting the traces into tension. The directional change is accomplished by partially splitting the flexible element and continuing an electrical trace from one side of the split back along the other side. The invention makes it possible to decrease the size for a given operational angle of mechanically variable resistors without sacrificing quality or reliability.

Abstract: A resistor card for a potentiometer to measure the fuel in a fuel tank consists of a non-conductive substrate with a plurality of elongate conductive contacts deposited. The contacts have an elevation above the surface of the substrate and the contacts are oriented in parallel relationship to each other to form a wiper track across which a wiper is movable. To reduce the rate at which the upper surfaces of the contacts are worn away by movement of the wiper, a non-conductive filler is deposited between the conductive materials which form the lands.

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 variable resistor includes a first resistor having linear resistance or attenuation characteristic, a second resistor disposed along the first resistor and having the linear resistance or attenuation characteristic, and a slider for bridging the first and second resistors, wherein one end of each of the first and second resistors is connected with each other.

Abstract: A miniature electro-mechanical transducer uses a body of elastomeric material composed of alternate layers of flexible dielectric material and flexible conductive material. The ends of the layers form opposite surfaces. An actuating member moves against one surface and the other surface contacts two spaced electrodes. The arrangement is such that a progressively increasing number of layers of conductive material are brought into an electrically parallel circuit between the electrodes.

Abstract: A part for a slide variable resistor provided on an insulated support thereof with a film resistive layer adapted for a slide terminal to be slid along the surface thereof, which part is characterized in that said film resistive layer comprises a main resistive layer pattern bound to the insulated support and a protective resistive layer pattern coated on said main resistive layer pattern, wherein the protective resistive layer pattern has a larger sheet resistivity than said main resistive layer pattern.

Abstract: A variable resistor element (10) comprises two thick film resistance layers or tracks (12, 14; 40, 50) electrically insulated one from another and on an insulating substrate (11). The thick film resistance layers (40, 50) may consist of the same resistance composition and thereby have the same resistivity, but the paths (40, 50) having different widths to effect different resistances; or, the widths of the resistance layers (12, 14) may be the same but the layers (12, 14) comprise different resistance compositions having different resistivities. An electrical contactor (20) has flexible fingers (22) wipably and respectively engaging the surface of each resistance layer (12, 14; 40, 50) to complete a circuit across the tracks (12, 14; 40, 50) and through the terminals (16 and 66) of the respective layers.

Abstract: A variable resistor suitable for use in the tone control of a stereo tape player or the like has two resistance bodies formed on an insulating substrate plate so as to oppose one another. Under one of the resistance bodies is formed a lead conductor, through an interposed insulating layer. The lead conductor is connected to one end of the associated resistance body and leads to the other end portion of this resistance body, so that the terminals of both resistance bodies can be located at the same side of the insulating substrate plate, thereby to diminish the size of the variable resistor.

Abstract: An elongated tape fabricated of an electrically insulative material has a pair of strips which run therealong, these two strips being joined together at one end thereof but not at the other, to form an open loop. The strips are fabricated of an electrically conductive material having a relatively high resistivity. The opposite ends of the tape are each wound on a separate reel, the tape being fed from one reel to the other by means of a drive mechanism. The tape is marked along its length with indicia representing resistances between the two strips for each position of the tape between the two reels. A window with a marker is provided to read out these resistances. A pair of electrical wipers are mounted in contact with the pair of strips to connect the strips to a circuit or the like, in which the resistance is to be utilized.

Abstract: Multiple resistance elements are mounted in parallel pairs around the inside curved wall of the assembly housing. Multiple cylindrical contacts in a planetary arrangement are rotated by a friction drive surface mounted on the control shaft. Each cylindrical contact rolls on one pair of resistance elements. The cylindrical contacts, by being movable shunts between the parallel strips, provide ganged multiple potentiometer or rheostat capability. No terminal is connected to any moving part. The diameter of the drive surface and the diameter of the cylindrical contacts determine the possible number of resistance elements per assembly. Shaft rotation for full range variation, thus vernier capability, is determined by the ratio of the drive surface diameter to the inside diameter of the housing.