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:
Feb. 03, 1976
Filed:
Apr. 01, 1974
Applicant:
Inventor:
Sven Gunnar Stenudd, Lidingo, SW;
Assignee:
Facit Aktiebolag, Atvidaberg, SW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
250571 ; 250239 ; 356199 ;
Abstract
A direction sensing device for a punched tape which is capable of movement linearly through an optical reading apparatus. The device is of a simplified design that is easily incorporated with the optical reading apparatus. The basic structure includes means for dividing the light projected from the light source, and a pair of photosensitive members that are activated in sequence thereby determining the direction of movement of the tape.