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:
Jan. 16, 1990
Filed:
Apr. 11, 1986
Applicant:
Inventor:
Robert J Hagenbach, Rochester, NY (US);
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ; G03G / ; C03G / ;
U.S. Cl.
CPC ...
4301066 ; 430108 ; 252 6256 ; 252 6258 ; 252 6259 ; 252 6260 ; 252 6262 ; 252 6263 ; 252 6264 ; 106D / ;
Abstract
Carrier particles with an average diameter of greater than 44 microns are generated from fly ash, and subsequently admixed with toner compositions enabling developer compositions useful for incorporation into xerographic imaging apparatuses. The aforementioned carrier particles have an apparent density of from about 2.4 to 2.6 grams/cm.sup.3 and a magnetic moment of from about 60 to about 70 electromagnetic units. Images with substantially no background deposits, that is, no dark bands appearing thereon, and substantially no white spots resulted with the aforementioned developer compositions.