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. 03, 1981
Filed:
Apr. 21, 1975
Applicant:
Inventors:
Virgil W Westdale, Chagrin Falls, OH (US);
Charles A Kumins, Gates Mills, OH (US);
Assignee:
AM International, Inc., Los Angeles, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430 31 ; 430110 ; 430120 ; 428407 ;
Abstract
A dry electrostatic developer mix having improved fatigue-resistance properties, is realized by adding to the developer mix, which contains carrier particles and pigmented toner particles, molybdenum disulfide in amounts ranging from about 0.005% to about 1.0% preferably in the range of from about 0.009% to about 0.2% based on the weight of carrier particles present in the developer mixture.