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:
Jul. 03, 1979
Filed:
Nov. 02, 1977
James A Nunes, Martinez, CA (US);
United States Steel Corporation, Pittsburgh, PA (US);
Abstract
Method and apparatus for dynamically determining average gage of continuous sheet material passing about a work roll for subsequent winding or coiling upon a take-up reel. The apparatus includes pulse tachometers for both the work roll, of known diameter, as well as the take-up reel. A comparison of the angular velocity of both the work roll and take-up reel results in a precise velocity ratio for a given period of time. The ratio, when taken in conjunction with the revolutions of the take-up reel, is then used within a digital logic apparatus for determining the change in coil diameter for the given time period, thereby resulting in the average gage of the continuous sheet material wound upon the take-up reel for that given time period. Strip length may also be calculated by the same apparatus.