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:
Mar. 05, 1991
Filed:
Aug. 17, 1988
Applicant:
Inventors:
Kazuhiro Satou, Nara, JP;
Hisashi Kunihiro, Nara, JP;
Akio Shiomi, Kyoto, JP;
Naotaka Funayama, Nara, JP;
Hideaki Hagihara, Nara, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355245 ; 355253 ; 118656 ;
Abstract
A developing device for an electrophotographic copier has a supply tank above a developing tank with an opening therebetween. A sealing member is removably attached to the rims of this opening before the developing device is ready to be used. An end part of this sealing member is attached to a take-up shaft and the sealing member is pulled or peeled off to be wound around the take-up shaft when the developing device is set in the copier and the shaft becomes connected to a motor in the copier.