Electrical resistors – Mechanically variable – Movable contact electrically adjustable over length of...
Patent
1985-10-31
1987-05-12
Spruill, Robert L.
Electrical resistors
Mechanically variable
Movable contact electrically adjustable over length of...
338182, 338184, H01C 1038, H01C 112
Patent
active
046653767
ABSTRACT:
Linear potentiometers are commonly used as position sensors on various mechanical devices. Such potentiometers are frequently subjected to extreme vibratory excitation, which is known to cause premature failure. The subject potentiometer includes a housing having interior walls defining a cavity. First and second guide slots are linearly disposed along the cavity walls parallel to the housing. A wiper block is positioned and is axially movable within the cavity. The wiper block includes first and second slide rails linearly disposed along the wiper block and extending outwardly from the wiper block at a location sufficient to project into respective ones of the guide slots. Each of the first and second slide rails has a plurality of tapered engaging portions positioned adjacent respective surfaces of the guide slots.
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Caterpillar Inc.
Noe Stephen L.
Spruill Robert L.
Studebaker Donald R.
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