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.

Date of Patent:
Sep. 10, 2013

Filed:

Feb. 24, 2010
Applicants:

Kyoichi Mizuno, Tama, JP;

Kunihiro Kawachi, Kokubunji, JP;

Masahiro Matsuo, Kokubunji, JP;

Inventors:

Kyoichi Mizuno, Tama, JP;

Kunihiro Kawachi, Kokubunji, JP;

Masahiro Matsuo, Kokubunji, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01); B65H 23/34 (2006.01); B65H 27/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A sheet de-curling device: including a first de-curling roller, structured of a round axial shaft and a long bar-shaped member, wherein the long bar-shaped member is spiraled on the round axial shaft clockwise from a predetermined portion of a center of the round axial shaft toward a left end of the round axial shaft, and counterclockwise from the predetermined portion of the center of the round axial shaft toward a right end of the round axial shaft with the same spiraling pitch; a second de-curling roller, structured of a round axial shaft and a long bar-shaped member, wherein the long bar-shaped member is spiraled on the round axial shaft in opposite spiraling directions against the first de-curling roller; and a driving mechanism which rotates the paired first and second de-curling rollers.


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