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. 09, 1991
Filed:
Oct. 20, 1989
David L Turney, Plano, TX (US);
Morris Relson, Great Neck, NY (US);
Gulton Industries, Inc., Plano, TX (US);
Abstract
A magnetically operated display element having contrasting opposite sides, is symmetrically mounted in a surrounding frame for pivoting about an axis. A permanent magnet within the display element has poles on opposite sides of the pivoting axis. A U-shaped electromagnet has its pole pieces positioned on opposite sides of the pivoting axis where they may interact with the poles of the permanent magnet. The permanent magnet has a asymmetrical magnetic construction relative to the pivoting axis. When the electromagnet is energized, the repulsion at one pole of the permanent magnet is always greater than at the other pole of the permanent magnet, causing rotation of the display element. The display element is statically and dynamically balanced.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile