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:
Oct. 18, 1977
Filed:
May. 04, 1976
Applicant:
Inventors:
James G Henderson, Dalton, GA (US);
David O Hanon, Ringgold, GA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
242 571 ; 226 15 ;
Abstract
A displacement sensing and guide apparatus for continuous sheet material wherein the edges of a moving sheet of material are sensed by electromechanical or other variable voltage or variable impedance sensing and feedback means and communicate electrically with an electrical switching system, either directly or through a balanced bridge circuit, to operate the switching system and to indicate and to correct a displacement of the sheet material from a predetermined position.