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:
Jan. 06, 1981
Filed:
Oct. 05, 1979
Applicant:
Inventor:
Donald Winrow, Weston, CA;
Assignee:
Ferranti-Packard Limited, Mississauga, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
340373 ; 3403785 ;
Abstract
A rotatable display or indicating element mounts a permanent magnet and is rotated greater than 90.degree. and less than 180.degree. between mechanical stops by an exterior pole piece of reversible polarity. A small permanent magnet adjacent the pole piece is designed with the locus of the rotatably mounted magnet to provide a stable position for the element just inward of the mechanical limiting position.