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. 19, 1997
Filed:
Mar. 27, 1995
Myron Lee Stuebe, Cincinnati, OH (US);
James Michael Fleming, Cincinnati, OH (US);
Mark David Whaley, West Chester, OH (US);
The Procter & Gambel Company, Cincinnati, OH (US);
Abstract
The automatic registration control system of the present invention is a closed loop system including a driving mechanism for feeding a continuous web of disposable absorbent articles, such as diaper pads, toward a cutter. The cutter may separate completed pads from the web. A sensor is positioned along the manufacturing line, and preferably preceding the cutter, for detecting at least one preselected feature of each diaper pad and producing a detection signal when the feature passes by the sensor. A position resolver determines the angular position of the cutter at the moment when the preselected diaper feature is detected, and the average angular position is calculated from a predetermined number of cutter positions. The average cutter position is compared to and subtracted from a target cutter position to produce an error signal. The error signal is then converted into a control signal and supplied to a phase variator which adjusts the position of the cutter in response to the control signal.