Method and implement for cleaning spring-contacts of a tuner

Details Method and implement for cleaning spring-contacts of a tuner Method and implement for cleaning spring-contacts of a tuner

1976-12-28

1978-02-07

Whitehead, Harold D.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

51281R, 134 7, 334 47, B24B 1900, B24B 100, H03J 500

Patent

active

040719820

ABSTRACT:
A method for cleaning the fixed spring-contacts of a cylindrical, drum-type television tuner or other electrical switch having contact-carrying strips arranged around the circumference of a rotatable drum, in which a cleaning implement is attached to the drum and is rotated into engagement with the fixed contacts so as to clean the same. The implement includes a support for attachment to the drum and a cleaning element on the support for engaging and cleaning the spring-contacts of the switch upon rotation of the drum. The cleaning element may be a set of eraser pads, an elongated eraser strip, or a coating or layer of abrasive material; and the support element may be made for the attachment to the drum either in superposition with an operative contact-carrying strip or in lieu thereof.

REFERENCES:
patent: 2750479 (1956-06-01), Guboff
patent: 3590537 (1971-07-01), Hennig
patent: 3613149 (1971-10-01), Gurkin
patent: 3613318 (1971-10-01), Gianatasio
patent: 3729768 (1973-05-01), Gurkin
patent: 3916357 (1975-10-01), Jones

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