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.:

US 9221661 B1

Expired

Date of Patent:

Dec. 29, 2015

Filed:

Feb. 28, 2014

Pressure adjuster, fixing device, and image forming apparatus

Applicants:

Ryuuichi Mimbu, Kanagawa, JP;

Takayuki Seki, Kanagawa, JP;

Hiroshi Yoshinaga, Chiba, JP;

Yuji Arai, Kanagawa, JP;

Yutaka Ikebuchi, Kanagawa, JP;

Yoshiki Yamaguchi, Kanagawa, JP;

Kazuya Saito, Kanagawa, JP;

Shuutaroh Yuasa, Kanagawa, JP;

Shuntaro Tamaki, Kanagawa, JP;

Toshihiko Shimokawa, Kanagawa, JP;

Naoki Iwaya, Tokyo, JP;

Inventors:

Ryuuichi Mimbu, Kanagawa, JP;

Takayuki Seki, Kanagawa, JP;

Hiroshi Yoshinaga, Chiba, JP;

Yuji Arai, Kanagawa, JP;

Yutaka Ikebuchi, Kanagawa, JP;

Yoshiki Yamaguchi, Kanagawa, JP;

Kazuya Saito, Kanagawa, JP;

Shuutaroh Yuasa, Kanagawa, JP;

Shuntaro Tamaki, Kanagawa, JP;

Toshihiko Shimokawa, Kanagawa, JP;

Naoki Iwaya, Tokyo, JP;

Assignee:

Ricoh Company, Ltd., Tokyo, JP;

Attorney:

Harness, Dickey & Pierce

Primary Examiner:

David Gray

Assistant Examiner:

Laura Roth

Int. Cl.

CPC ...

G03G 15/20 (2006.01); B66F 19/00 (2006.01);

U.S. Cl.

CPC ...

B66F 19/00 (2013.01); G03G 15/2035 (2013.01); G03G 15/2067 (2013.01); G03G 15/2071 (2013.01); G03G 2215/2035 (2013.01);

Abstract

A pressure adjuster for changing pressure between a plurality of opposed bodies pressed against each other includes a cam rotatable in a given direction of rotation and having a top dead center on an outer circumferential surface thereof that is distanced farthest from a rotation axis of the cam. A driver is connected to the cam to drive and rotate the cam. A cam rest contacts the cam and is connected to one of the plurality of opposed bodies. A cam regulation assembly is connected to the cam to regulate rotation of the cam at least when the top dead center of the cam passes a contact position where the cam contacts the cam rest.

Find Patent Forward Citations

Mimbu, Ryuuichi. (2015). Pressure adjuster, fixing device, and image forming apparatus (U.S. Patent No. 9221661). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9221661

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