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:
Sep. 13, 1994
Filed:
May. 25, 1993
Applicant:
Inventors:
Thomas K Hilbert, Spencerport, NY (US);
Theodore H Morse, Rochester, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355253 ; 355245 ; 355251 ; 492 18 ; 118656 ;
Abstract
Apparatus for applying toner to an electrostatic image includes a sump for holding developer, which developer preferably includes a component having high coercivity and permanent magnetism. An applicator for moving the developer through a development zone includes a rotatable magnetic core and a sleeve around the core, which sleeve includes roughened portions leading to and away from the development zone and a smooth portion directly facing the development zone. The sleeve may also have smooth portions on its lateral crosstrack edges.