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:
Jul. 28, 1987
Filed:
Mar. 13, 1986
Applicant:
Inventor:
Guy A Wojtanek, Franklin Park, IL (US);
Assignee:
Eaton Corporation, Cleveland, OH (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
200314 ; 200310 ;
Abstract
A switch assembly having a pushbutton actuator with graphics backlit by an electroluminescent light source deposited upon a mylar substrate. A separate indicator lamp is provided to be lit when the function selected by the switch is activated. The indicator light is visible through a small window in the pushbutton. In order to prevent light from the indicator lamp from impinging upon the graphics area, a portion of the mylar substrate is opaquely coated to block the light transmission, while the remainder of the mylar substrate is clear to insure proper registration and prevent degradation of the electroluminescent phosphor.