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:
Jan. 20, 2026
Filed:
Mar. 21, 2024
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Keita Shimizu, Nagoya, JP;
BROTHER KOGYO KABUSHIKI KAISHA, Nagoya, JP;
Abstract
A drum unit for use with an image forming apparatus includes: a drum frame to which a developing cartridge is attachable; a photosensitive drum positioned at the drum frame; a lever movable relative to the drum frame; and an urging member urging the lever. When the developing cartridge pivotally moves relative to the drum frame from a first position in which the lever faces a portion of the developing cartridge in a first direction with a gap between the lever and the portion of the developing cartridge to a second position in which the lever is in contact with the portion of the developing cartridge in a state where the developing cartridge is attached to the drum frame, the lever causes the developing cartridge to move from the second position to the first position by an urging force of the urging member.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile