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:
Aug. 31, 1976
Filed:
Aug. 15, 1975
Applicant:
Inventor:
Walter Crooks, Los Gatos, CA (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ; G03G / ;
U.S. Cl.
CPC ...
96 1 / ; 427 14 ; 427 20 ; 427 21 ; 252 / ;
Abstract
The formation of toner film on the photoconductor in electrophotography is reduced by adding to the developer toner a small amount of fibrillatable polytetrafluoroethylene, and working the mixture until a random network of fibers of said polytetrafluoroethylene is formed.