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. 10, 2020
Filed:
Jan. 15, 2020
Lexmark International, Inc., Lexington, KY (US);
Gregory Alan Cavill, Winchester, KY (US);
Richard Louis Goin, Lexington, KY (US);
Lexmark International, Inc., Lexington, KY (US);
Abstract
A developer unit for an electrophotographic image forming device includes a developer roll rotatably mounted on a housing. The developer roll includes a shaft defining a rotational axis and a roll body cylindrically disposed around the shaft to form an outer circumferential surface of the developer roll. An end seal includes a curved rotary seal portion sandwiched between a pocket portion of the housing and the outer circumferential surface of the developer roll, such that an outer circumferential surface of the curved rotary seal portion contacts the pocket portion of the housing and an inner circumferential surface of the curved rotary seal portion contacts the outer circumferential surface of the developer roll. The pocket portion of the housing includes protrusions that contact the outer circumferential surface of the curved rotary seal portion to restrict movement of the end seal along an operative rotational direction of the developer roll.