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:
Oct. 09, 1979
Filed:
Apr. 18, 1977
Applicant:
Inventors:
Donald W Edwards, Wilmington, DE (US);
Richard D Kinard, Newark, DE (US);
Theodore J Wirbisky, Wilmington, DE (US);
Richard J Angelucci, Glenolden, PA (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65G / ;
U.S. Cl.
CPC ...
198657 ; 198690 ; 222D / ; 355 / ;
Abstract
A magnetic auger in the form of a cylinder having one or more magnetic helices in the surface thereof is disclosed for transporting ferromagnetic particles such as toner particles used in magnetography.