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. 27, 2001
Filed:
Nov. 19, 1999
Charles John Bennett, Webster, NY (US);
Larry Thomas Schlitzer, Rochester, NY (US);
Other;
Abstract
A web-tracking control apparatus including a mechanism for monitoring the cross-track force exerted on a moving flexible web as the web is transported along a desired travel path, and a control circuit utilizing the monitored force to provide for feedback control to correct tracking of the moving web. The web-tracking control apparatus for controlling the movement of a flexible web traveling about an adjustable support member includes at least one web edge contacting member contacting a marginal edge of the flexible web. A pivot assembly is operatively associated with the web edge contacting member while said web edge contacting member is in contact with a marginal edge of said flexible web. The pivot assembly is capable of deflecting a predetermined amount proportional to the force of the flexible web on the edge contacting member. A cross-track force monitoring mechanism is operatively associated with the pivot assembly for producing a signal representative of deflection of the pivot assembly. An electronic circuit responsive to the pivot assembly deflection signal provides a correction signal for causing adjustment of the position of the web support member so that the web support supports the flexible web for movement without any substantially cross-track force being exerted on the web edge contacting member.