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. 15, 2022
Filed:
Jul. 19, 2021
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 21/16 (2006.01); G03G 21/18 (2006.01);
U.S. Cl.
CPC ...
G03G 21/1647 (2013.01); G03G 21/1825 (2013.01); G03G 21/1864 (2013.01);
Abstract
A cartridge and a drum unit include a drum flange provided at one end portion of a photosensitive drum and a coupling member operatively connected to the drum flange, with the coupling member being configured to transmit a driving force to the drum flange. A coil spring urges the coupling member. At least a part of the coil spring surrounds at least a part of a shaft portion of the coupling member. An extent of the coil spring that surrounds the shaft portion and an extent of the shaft portion that is surrounded by the coil spring are positioned within a hollow interior portion of the drum flange.