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:
Aug. 21, 1990
Filed:
Apr. 10, 1989
Fumio Yuito, Shizuoka, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A control system for a web cutting line has a cutter for cutting a web of indeterminate length advanced along a web cutting line into sheets, and an end cutting shear for severing that part of the web that extends along the web cutting line from the major or upstream part of the web that has not yet reach the cutting line. A first defect sensor is disposed near the end cutting shear for detecting surface defects in the web, and a second defect sensor is disposed near the first-mentioned cutter for detecting a defective part of the web that includes a surface defect. The number of acceptable sheets that is expected to be obtainable from that part of the web that extends along the cutting line is estimated, based on the distribution of surface defects detected by the first defect sensor, and the number of acceptable sheets already cut off from the web is added to this estimated number. The end cutting shear is actuated to cut off that part of the web extending along the cutting line when the sum of the estimated number and the counter number of acceptable sheets reaches a predetermined total.