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. 22, 2002
Filed:
Apr. 12, 2000
Bruce F. Taylor, Worthington, OH (US);
Qualitek-VIB, Inc., Tucker, GA (US);
Abstract
The system and method of the present invention determines the rate of application of liquid glue to corrugated board on a corrugator. A sensor employing the principle of infrared absorption measures the amount of water on the surface of the glue roll upstream of the point of application of the glue to the corrugated board's medium. A second sensor employing the principle of infrared absorption measurers the amount of water on the surface of the glue roll downstream of the point of application of the glue to the corrugated board's medium. Using calibration coefficients the two sensor's output signals are then converted into film thickness measurements. The downstream film thickness measurement is then subtracted from the upstream film thickness measurement to compute the reduction in film thickness caused by the intervening application of the glue to the medium.