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:
Nov. 16, 1976
Filed:
Jul. 31, 1975
Applicant:
Inventors:
Gordon Helwig, Toronto, CA;
Donald Winrow, Weston, CA;
Assignee:
Ferranti-Packard Limited, Toronto, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09F / ;
U.S. Cl.
CPC ...
40 2 / ; 40 5 / ;
Abstract
A disc rotatable to exhibit alternately one of its two faces under the influence of an external magnetic field, has its center of gravity offset with respect to the pivoting plane so as to ensure a positive torque when moving from either of its rest positions under the influence of the said magnetic field.