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:
Mar. 12, 1985
Filed:
Nov. 08, 1982
Harold R Lillibridge, Bulingame, CA (US);
Champion International Corporation, Stamford, CT (US);
Abstract
Envelope blanks are scored and folded by pressing the flat blanks through a series of scoring and folding rolls. The rolls include vacuum rolls which invert the envelope blanks during the scoring operation. The blanks are scored laterally and as they pass over the outer surface of one of the vacuum rolls they are scored longitudinally. During the longitudinal scoring operation, the envelopes are curvilinear due to their being drawn down onto one of the vacuum rolls. After the longitudinal scoring operation, the blanks are inverted by being folded along the transverse score. The inverted, folded blanks are then moved along by a pair of cooperating vacuum rolls to a gumming station. After being gummed, the blanks are folded along their longitudinal scores with the folded flaps being secured in place by the gum.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile