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. 20, 1993
Filed:
Dec. 06, 1991
Applicant:
Inventors:
Antonio Fiorentini, Milan, IT;
Claudio Perissinotto, Martignacco, IT;
Assignee:
Solari Udine S.p.A., Udine, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
335219 ; 34081505 ; 34081526 ; 40426 ;
Abstract
An elementary cell combinable to form dot matrix displays, in which a plurality of plates of non-magnetic insulating material, at least one of which is in contact with a plate of high magnetic permeability, define a seat for housing a polychrome sphere provided internally with a permanent magnet. In the plates of non-magnetic material there are arranged magnetic poles, which can be energized selectively to cause the sphere to rotate into predetermined positions.