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 9366996 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 14, 2016

Filed:

Feb. 13, 2015
Applicants:

Akinori Harada, Osaka, JP;

Tomohiro Kubota, Osaka, JP;

Hiroshi Fujiwara, Osaka, JP;

Inventors:

Akinori Harada, Osaka, JP;

Tomohiro Kubota, Osaka, JP;

Hiroshi Fujiwara, Osaka, JP;

Assignee:

Ricoh Company, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/08 (2006.01);
U.S. Cl.
CPC ...
G03G 15/0898 (2013.01); G03G 15/0812 (2013.01);
Abstract

A sealing structure includes a housing to accommodate powder, a powder roller having a surface to bear and convey the powder, and an entrance seal disposed between the powder roller and the housing to allow powder remaining on a circumferential surface of the powder roller to enter the housing. A pair of left and right edge seals is provided in a circumferential direction of the powder roller to overlap with outer circumferential surfaces of both ends of the entrance seal, respectively. Both ends of the entrance seal include powder damming sections extended from both ends thereof along the pair of left and right edge seals, respectively. A pair of inner edges of the respective powder damming sections is each sandwiched between a corresponding one of the pair of left and right edge seals and the powder roller while substantially symmetrically inclining from the rotation direction of the powder roller.


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Harada, Akinori. (2016). Sealing structure, developing device, cleaning device, process unit, and image forming apparatus (U.S. Patent No. 9366996). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9366996

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