Electromotive adjustable resistor

Details Electromotive adjustable resistor Electromotive adjustable resistor

1993-09-16

1994-12-27

Lateef, Marvin M.

Electrical resistors

Mechanically variable

With electromagnetic operator

338DIG1, H01C 1014

Patent

active

053769147

ABSTRACT:
An electromotive adjustable resistor, comprising an electric motor which includes a motor shaft and a gear train which has two worm gear engagements and a cylindrical gear engagement. The cylindrical gear engagement provides a distance (space) between the resistance adjusting shaft and the motor shaft along the axis of both shafts. Accordingly, the axes of the two shafts can coincide or nearly coincide without interfering with each other. This narrows the width of the electromotive adjustable resistor, and minimizes the space on the circuit board occupied by the adjustable resistor.

REFERENCES:
patent: 1124280 (1915-01-01), Brackett
patent: 2248711 (1941-07-01), LeFevre
patent: 2575151 (1951-11-01), Wheat
patent: 2863281 (1958-12-01), Haydon et al.
patent: 3100883 (1963-08-01), Blanco
patent: 3547240 (1970-12-01), Holper
patent: 3900816 (1975-08-01), Kiyono
patent: 4646055 (1987-02-01), Watanabe et al.
patent: 4973938 (1990-11-01), Matsuoka

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