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:
Dec. 05, 2017
Filed:
Oct. 26, 2011
Tadayuki Wakatabi, Tokyo, JP;
Yasuhiro Katada, Tokyo, JP;
Tadayuki Wakatabi, Tokyo, JP;
Yasuhiro Katada, Tokyo, JP;
RISO KAGAKU CORPORATION, Tokyo, JP;
Abstract
In a sealed letter producing device which folds and seals, with a content, an envelope sheet on which pressure-sensitive adhesives are provided, sealing with pressure rollers smaller than in conventional rollers is achieved. Pressure-sensitive adhesivesare provided in both edge portions in the width direction of an envelope sheet, and remoistening pasteis provided inwardly of both edge portions. The remoistening paste is moistened when the envelope sheet wrapping a content is bent and formed into an envelope, the entire surface of the envelope is pressurized by low-pressure rollers and adhered with the remoistening paste, and further only both edge portions of the envelopeare pressurized by an upper and lower set and a left and right pair of the pressure rollershaving a small width to adhere the pressure-sensitive adhesive. High pressure required for adhesion of the pressure-sensitive adhesives is only necessary in both edge portions of the envelope, and therefore small pressure rollerswill suffice.