Adjusting potentiometer for electronic circuits, process for ass

Details Adjusting potentiometer for electronic circuits, process for ass Adjusting potentiometer for electronic circuits, process for ass

1989-03-14

1990-12-11

Reynolds, Bruce A.

Electrical resistors

Mechanically variable

Movable contact electrically adjustable over length of...

338160, 338161, 296101, H01C 1034

Patent

active

049773879

ABSTRACT:
A potentiometer has a parallelepiped casing provided with recesses for fitting connecting terminals which are secured to the casing by plastically deformed studs projecting outward from the casing. Slots are formed in the casing so that the ends of the terminals may project into the casing and be deformed into contact with a resistive plate within the housing. The collector preferably comprises a plate substantially coextensive with one face of the parallelepiped housing, and which is secured to the housing by deformable flanges formed at its edges. A central hole formed in the housing constitutes a bearing for the rotor-actuated cursor. Assembly of the potentiometer may be performed continuously by assembling the terminals, cursors and collectors on a continuous band. The resistive plate is preferably obtained from an electrically insulating substrate on which a resistive paint is first applied and then a silver glaze, with intermediate drying phases.

REFERENCES:
patent: 2744986 (1986-05-01), Caldwell
patent: 3470519 (1969-09-01), Hatch
patent: 3591413 (1971-07-01), Seki et al.
patent: 4792778 (1988-12-01), Arriazu

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