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:
Apr. 05, 1977
Filed:
Jan. 27, 1975
Applicant:
Inventors:
Bernard J Golbeck, Crystal Lake, IL (US);
Raymond F Lewandowski, Mt. Prospect, IL (US);
William C Markinson, Crystal Lake, IL (US);
Assignee:
Oak Industries Inc., Crystal Lake, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
200314 ; 2001 / ;
Abstract
A pushbutton switch has a base and a button telescopically movable on the base. There are a pair of terminals, with one of the terminals having a contact arm positioned within a switching chamber in the base. Movement of the button is effective to cause the contact arm to close upon the other terminal. The effective length of the contact arm is greater than its actual length. In one improvement, a light emitting device may be illuminated when the switch is operated. In another, a portion of the light emitting device forms the means to close the contact arm.