Rotational control assembly

Details Rotational control assembly Rotational control assembly

1989-07-17

1991-02-19

Braun, Leslie A.

Machine element or mechanism

Control lever and linkage systems

Elements

74 10R, G05G 110

Patent

active

049932802

ABSTRACT:
A mechanical rotational control assembly (100) is provided having a knob (20) engaged to a potentiometer's rotating shaft (55). A friction element (40), such as a washer made of a material having similar temperature characteristics to the knob (20), is interlocked to the stationary portion (57) of the potentiometer. The peripheral boundary (47) of the friction element (40) is engaged to the skirt portion (25) of the knob (20), so as to produce a fricional force when the knob (20) is rotated, and thereby increasing the rotational torque of the rotational control assembly.

REFERENCES:
patent: 2154537 (1939-04-01), Stenberg
patent: 2502915 (1950-04-01), Atkins et al.
patent: 3473408 (1969-10-01), Bettinger
patent: 3767880 (1973-10-01), Austin
patent: 4197765 (1980-04-01), Shimoda
patent: 4295246 (1981-10-01), Howie, Jr.
patent: 4433218 (1984-02-01), Provencher

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