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:
Feb. 04, 1992
Filed:
Jun. 10, 1991
Applicant:
Inventors:
Larry O Aulick, Cynthiana, KY (US);
Donald W Stafford, Lexington, KY (US);
Ajay K Suthar, Lexington, KY (US);
Assignee:
Lexmark International, Inc., Greenwich, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
118653 ; 118657 ; 118261 ; 355259 ;
Abstract
A doctor blade (1) has an outer metal surface (15) on a grit layer with flexible backing. The blade is pushed by foam (21) or, alternately by inherent resilience, onto a developer roller (7). The compliance reduces toner variations which result from surface variations of the blade and the roller.