The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 13, 1976
Filed:
Jun. 25, 1974
Applicant:
Inventors:
Ronald A Shirley, La Habra, CA (US);
Robert J DeLong, Temple City, CA (US);
Assignee:
Spectrol Electronics Corporation, Industry, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01C / ;
U.S. Cl.
CPC ...
338143 ; 338167 ; 338170 ; 338182 ;
Abstract
A variable resistor including a resistance element, a housing supporting the element, and rotary means including a shaft located within the housing. Means are provided to restrain rotational movement of the rotary means except upon application of a relatively large magnitude predetermined force. The restraining means includes a resilient member and a second member operable to develop a frictional force to prevent undesired rotation of the rotary means.