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. 11, 2000
Filed:
Feb. 11, 1998
Raymond G Buchko, Neenah, WI (US);
Rapidpak, Inc., Neenah, WI (US);
Abstract
A system and method of obtaining precise registration of a forming web in an indexing motion web advancement mechanism wherein the web has spaced registration marks for defining an area of distorted printing provided thereon. The web is passed from a supply roll through a braking arrangement, a photosensing mechanism for sensing the registration marks on the web and a heater system movable back and forth relative to the web to a nip roller arrangement having one or more rolls driven by an unwind motor. The web is indexed from the supply roll by operation of the unwind motor. A first registration mark on the web is sensed by a photosensing mechanism and the feeding of the web from the supply roll is immediately stopped using the braking arrangement. The web is stretched downstream of the heater system by continuing to operate the unwind motor to apply tension to the web. The unwind motor is stopped and heat is applied to the web by moving the heater system towards the web upon the adjacent registration mark downstream of the first registration mark. This motion is used to attain a predetermined precise length for supply into the web advancement mechanism downstream of the nip roller arrangement.