Potentiometer contact and rotor assembly

Details Potentiometer contact and rotor assembly Potentiometer contact and rotor assembly

1978-01-30

1980-02-05

Albritton, C. L.

Metal working

Method of mechanical manufacture

Electrical device making

338171, 338202, H01R 900

Patent

active

041864832

ABSTRACT:
A total assembly system combining the fabrication of multiwire contact springs into a wiper contact with the assembly of the wiper contact so fabricated into a potentiometer rotor blank. A radius-truncated cone projection acts as a reducer of the heat power required to make a multiwire weld. By allowing the radius truncated cone projection to be pressed into the wires to achieve the weld, the interference nubs, heat staking, epoxy and ultrasonic staking operations required in the prior art are eliminated. The wiper contact is itself assembled to and retained by the rotor blank in an integrated process by means of a mechanical interference fit.

REFERENCES:
patent: 2760036 (1956-08-01), Raymer
patent: 3328707 (1967-06-01), Louis et al.
patent: 3579822 (1971-05-01), Dieterich
patent: 3704436 (1972-11-01), Froebe et al.
patent: 3733573 (1973-05-01), Dieterich
patent: 3755892 (1973-09-01), Dieterich
patent: 3766646 (1973-10-01), Froebe et al.
patent: 3982221 (1976-09-01), Smith

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