Rotary variable resistor with shaft retaining spring member

Details Rotary variable resistor with shaft retaining spring member Rotary variable resistor with shaft retaining spring member

1986-10-31

1988-01-12

Scott, J. R.

Electricity: circuit makers and breakers

Multiple circuit control

Pivoted contact

200336, H01H 1900

Patent

active

047193247

ABSTRACT:
A rotary type electronic device has a casing, a rotatable operating shaft with one end disposed through a front wall into the casing, a rotary electronic unit in the casing including a rotatable slider retainer which is engaged with the end of the operating shaft, a fastening member fixed on the end of the shaft and engaging the slider retainer, and a spring washer compressed between the fastening member and the casing front wall. The spring water is secured non-rotatively to the fastening member, engages an inner groove on the shaft to hold the shaft axially through the front wall of the casing, and has a protrusion on an annular spring part bearing against the front wall of the casing to provide a click feeling with rotation of the shaft.

REFERENCES:
patent: 1624374 (1927-04-01), Swoboda
patent: 2091471 (1937-08-01), Douglas
patent: 3258547 (1966-06-01), Rector
patent: 3411377 (1968-11-01), Golbeck
patent: 3728511 (1973-04-01), George et al.
patent: 3924185 (1975-12-01), Schwartz
patent: 4623763 (1986-11-01), Krause

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