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:
Nov. 24, 1992
Filed:
Feb. 12, 1991
Applicant:
Inventors:
Toyoka Aimoto, Nara, JP;
Yoshiki Ichikawa, Shiki, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355215 ;
Abstract
A developing unit for use in an electrophotographic image forming apparatus, which includes a rotation shaft rotatably supported through the wall of the developer tank in such a manner that the gap between the rotation shaft and the supporting wall is sealed with a main sealing member mounted on a bushing holding member, and that the gap between the rotation shaft and the bushing is sealed with a sub-sealing member.