Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 6369691 | Switch type variable resistor The present invention relates to a switch type variable resistor, including a rotation shaft, a bushing, a housing, a variable resistor portion, and a switch portion. The switch portion includes a switch portion seat, a control plate, an insulating plate,... | 04/09/2002 |
| 6329898 | Multiple operation type electrical part In a multiple operation type electrical part of the invention, a clicking member is disposed between an insulating base member, being a component part of a first rotary electrical part, and a second rotary member, being a component part of a second rotary... | 12/11/2001 |
| 5777223 | Measuring systems for linear or angular movements A measuring system for linear and angular movements with a first length or angle sensor (3) which operates in accordance with a first measuring method and which converts an input value (s, alpha) in the form of a linear or angular movement into an electri... | 07/07/1998 |
| 5353004 | Sensor for detecting steering angle During plural rotations of the the first potentiometer as a result of the operation of a steering wheel, though a specific position of the first potentiometer corresponds to plural rotation angles or rotation numbers of the steering wheel, the correct, re... | 10/04/1994 |
| 4973939 | Potentiometer combination mounted on a circuit board A balancing and a setting potentiometer, in combination, arranged one above the other in a common housing, mounted on a circuit board, with electric connections guided to the circuit board and with a full-length hollow shaft arranged for adjusting the pot... | 11/27/1990 |
| 4904979 | Component assembly for electrical part A component assembly, for constituting an electrical part such a volume unit, having a pair of appropriate components, such as those approximate to each other in electrical characteristic, joined as a unit by a connecting plate. In use, the pair of compon... | 02/27/1990 |
| 4866413 | Potentiometer and method of making the same The potentiometer consists of two halves. Each half has a base plate (5,6) ending in soldering lugs (51,61,62). One part each of a casing (1 or 2) and a rotary driver half (3 or 4, respectively) are molded to each base plate in a plastics injection moldin... | 09/12/1989 |
| 4845458 | Component assembly for electrical part A component assembly, for constituting an electrical part such a volume unit, comprises a pair of appropriate components, such as those approximate to each other in electrical characteristic, joined as a unit by a connecting plate. In use, the pair of com... | 07/04/1989 |
| 4716518 | Incremental control An endstopless incremental control provided by parallely connecting and ganging at least two potentiometer wipers without mechanical endstops, selectively switching, converting and sampling the individual output on the potentiometer wipers and utilizing o... | 12/29/1987 |
| 4693111 | Position sensor for a movable part in a motor vehicle A sensor is disclosed for detecting the position of a movable part in a motor vehicle with a common drive for several position pickups and several paths. The individual paths are traversed at least partly consecutively over the total range so that a posit... | 09/15/1987 |
| 4523175 | Dual shaft rotary electric device A dual shaft rotary electric device comprises inner and outer concentric shafts, slider supports attached to the inner and outer shafts respectively, sliders attached to the slider supports respectively, and insulating substrates stacked in the longitudin... | 06/11/1985 |
| 4353053 | Rotary variable resistor A rotary variable resistor comprising an insulation substrate having a partial-ring form resistor layer on the surface thereof, an operational shaft rotatably supported at a central portion of the insulation substrate, a brush supporter of a rotational bo... | 10/05/1982 |
| 4238754 | Variable resistor A variable resistor of modular design having a hub-flange and at least one housing frame having a central opening. A spring carrier provided with a contact spring is arranged in the central opening of the housing and is rotatable by means of an actuation ... | 12/09/1980 |
| 4225844 | Adjustable variable resistance control system A first rotor is fixedly carried by a shaft and a second rotor is loosely carried by the shaft. A coupling means couples the second rotor to the shaft through flanges extending from the rotor and pinching the shaft. The two rotors are then adjusted with r... | 09/30/1980 |
| 4105988 | Tandem electrical control A tandem electrical control comprises a plurality of variable resistance sections. Each resistance section comprises a resistance element and a collector member that are carried by a base, and a contactor member that is carried by a driver, the contactor ... | 08/08/1978 |
| 4035758 | Adjustable variable resistance control system A first rotor is fixedly carried by a shaft and a second rotor is loosely carried by the shaft. A coupling means couples the second rotor to the shaft through an interference fit with the second rotor. The two rotors are then adjusted with respect to one ... | 07/12/1977 |
| 3988711 | Tandem electrical control A control comprises two variable resistance controls connected in tandem to a concentric shaft arrangement, an inner shaft of the concentric shaft arrangement containing an energy absorber, the inner shaft and the energy absorber providing an energy absor... | 10/26/1976 |
| 3953821 | Variable resistance control A variable resistance control comprises a resilient nonconductive annular skirt sandwiched between a pair of substrates. The skirt has an arcuate section and a pair of posts interconnected by a bridge section. Each of the substrates comprises a circular p... | 04/27/1976 |
| 3931606 | Device for simultaneously controlling a plurality of variable resistors A first pair of variable resistors are mounted on two opposite walls of a substantially rectangular outer casing in such manner that their rotary shafts coaxially extend through the walls and are attached to two opposite walls of a substantially rectangul... | 01/06/1976 |
