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:
Jun. 30, 1998
Filed:
Oct. 10, 1996
Steven J Siler, Cary, IL (US);
Scott T Hilkert, Skokie, IL (US);
Jeffrey C Petrin, Arlington Heights, IL (US);
Hurletron, Incorporated, Danville, IL (US);
Abstract
A pre-registration system for a printing press may be provided with a first detector for detecting an angular position of a first rotatable printing cylinder by sensing when a reference mark disposed on the first printing cylinder is in a predetermined angular position, a second detector for detecting an angular position of a second printing cylinder by sensing when a reference mark of the second printing cylinder is in a predetermined angular position, and an adjustment mechanism for automatically adjusting the angular position of one of the printing cylinders based on the circumference, a web distance, and the angular position of one of the printing cylinders. The adjustment mechanism may adjust the angular position based upon a stored phase data relating to the web distance and the circumference. Alternatively, the adjustment mechanism may determine a target angular position for the one printing cylinder, determine a phase correction signal based upon the angular position of the one printing cylinder and the target angular position, and adjust the angular position of the printing cylinder based upon the phase correction signal.