Rotary potentiometer with molded terminal package

Details Rotary potentiometer with molded terminal package Rotary potentiometer with molded terminal package

1982-01-18

1984-02-07

Albritton, C. L.

Electrical resistors

Mechanically variable

Movable contact electrically adjustable over length of...

338199, H01C 1032

Patent

active

044306342

ABSTRACT:
A rotary potentiometer (10) having an insert molded thermoplastic resin body (12) with an annular groove (14) disposed therein about a central post (19) having an aperture (16) therethrough. A resistive element (26) is disposed about the periphery of the groove (14), an actuator arm (20) is attached to one end of a metallic shaft (18) journalled in said aperture (16) in the central post (19), and a return spring (28) has one end (29) captured within a drop slot (13) at the perimeter of the groove and the other end (31) secured in slot (11) of the shaft (18) for returning the actuator arm (20) and drive arm (22) to their initial position. A drive arm (22) has a rake type contactor (33), the drive arm (22) being secured to the operating end of the shaft (18). A terminal coupling subassembly (65) is positioned within a receiving well (40 ) in the potentiometer body (12), and is captured within the body by securing a cover (80) over the receiving well (40). The plurality of terminals (60-62) in the coupling subassembly (65) have angled ends (72) for resilient contact with terminations of the resistive element (26) and terminal connection ends (55) molded within the potentiometer body (12).

REFERENCES:
patent: 1618967 (1927-03-01), Adams
patent: 3314036 (1967-04-01), Kruse
patent: 3377606 (1968-04-01), Ferrell
patent: 4314229 (1982-02-01), Kawasaki et al.

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