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. 16, 1993
Filed:
Aug. 09, 1991
Applicant:
Inventor:
Abraham Cherian, Webster, NY (US);
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355260 ; 156173 ; 156175 ; 355245 ; 366320 ;
Abstract
A helical spring is disclosed for transporting developer material in an electrostatographic printer. The helical spring rotates within a conduit for transporting developer from a toner dispenser cartridge to the developer toner roll, or from a cleaning station adjacent the photoreceptor to a waste bottle. The spring can be made of twisted or braided wires coated with a protective coating.