Method and implement for cleaning spring-contacts of a tuner
OwnerMarvin Linninventor
Life of this patent
Estimating the term…
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.
Claims4
A cleaning implement for cleaning fixed spring-contacts of a cylindrical, drum-type tuner having replaceable contact-carrying strips arranged about the circumference of a rotatable drum, comprising:
- a support element in the form of a substantially rectangular sheet of material;
- means on said support element for removably attaching said element to the drum over a contact-carrying strip of the tuner;
- and
- cleaning means in the form of a layer of abrasive material on said support sheet for engaging and cleaning the fixed spring-contacts of the tuner upon rotation of said drum;
- said attaching means including tabs on said sheet at each end thereof for snap-on engagement with opposite ends of the tuner drum whereby said support element can be snapped over a contact-carrying strip for cleaning.
A cleaning implement for use in cleaning fixed spring-contacts of a cylindrical, drum-type tuner having replaceable contact-carrying strips arranged about the circumference of a rotatable drum, comprising:
- a support element;
- means on said support element for attaching said element to the drum;
- and
- cleaning means on said support element for engaging and cleaning the fixed spring-contacts of the tuner upon rotation of said drum, wherein said support element comprises a contact-carrying strip, and wherein said cleaning means comprises a coating of a rapid drying liquid which contains abrasive particles suspended in a hardenable binder on the contacts of said contact-carrying strip.
A method of cleaning fixed spring-contacts of a cylindrical, drum-type tuner having replaceable contact-carrying strips arranged about the circumference of a rotatable drum, comprising the steps of:
- coating the contacts of a contact-carrying strip with a rapid drying liquid which contains abrasive particles suspended in a hardenable binder;
- temporarily substituting said coated strip for an operative strip on the drum;
- rotating the drum to bring said coated strip into engagement with the spring-contacts of the tuner so as to clean the fixed contacts;
- and
- removing said coated strip from the drum.
Dependencies are inferred from the claim text.