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:
Dec. 17, 1985
Filed:
Feb. 04, 1985
Applicant:
Inventors:
Kwangling Chang, Toronto, CA;
Pankaj J Dave, Concord, CA;
Assignee:
NEI Canada Limited, Toronto, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09F / ;
U.S. Cl.
CPC ...
40473 ; 40449 ; 40452 ;
Abstract
A display element comprises a stator housing with a front aperture and a rotor electromagnetically rotatable to assume three or four rotary positions. At each rotary position a different area of the rotor is seen through the aperture. Two or three of the areas of the rotor are translucent. Apertures in the stator housing and registering apertures in the rotor allow the translucent areas to be illuminated by lighting placed to the rear of the stator housing.