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. 16, 2004
Filed:
Sep. 29, 2003
Applicant:
Inventors:
Sudha Chopra, Lexington, KY (US);
Ronald Lloyd Roe, Lexington, KY (US);
Mark Stephen Weisman, Jr., Huntington, WV (US);
Assignee:
Lexmark International, Inc., Lexington, KY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 2/718 ; B32B 2/720 ; B32B 2/728 ; G03G 1/520 ;
U.S. Cl.
CPC ...
B32B 2/718 ; B32B 2/720 ; B32B 2/728 ; G03G 1/520 ;
Abstract
This invention comprises a fuser belt ( ) of polyimide incorporating surface-oxidized boron nitride. The resulting enhanced flexibility provides continuing strength without physical damage during use of the belt in a belt fuser while thermal conductivity is preserved. The extent of flexibility enhancement observed is dependent on the degree of oxidation. Therefore, oxidation temperature and time of oxidation are key variables that are used to control the degree of oxidation and thereby the resulting improvement in the flex fatigue.