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:
Sep. 15, 1992
Filed:
Jan. 06, 1992
Tadeusz Staniszewski, Budd Lake, NJ (US);
Hunt Holdings, Inc., Wilmington, DE (US);
Abstract
Apparatus for automatically folding one or more sheets of paper into three substantially equal sections for later insertion into a mailing envelope. Rollers are used to introduce the sheet into a guide which guides the leading edge of the sheet back against an upstream line in the same sheet, where a first fold is to be made. Upon further operation, the lead edge of the sheet forces the upstream line in the sheet into a nip between two rollers, which then seize, pass and fold the sheet along the upstream line with the leading edge of the sheet still within the fold. Still further operation pulls the remaining loop and the remaining upstream portion of the sheet into the roller nip to form the desired second fold. The guide has a radially-inwardly biased input portion which, when the leading edge strikes the upstream portion of the sheet, moves radially outward, and later returns inwardly under spring pressure to assist in urging the leading edge of the sheet, and the upstream line in the sheet, into the folding roller nip.