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. 11, 1983
Filed:
Jan. 09, 1981
Applicant:
Inventors:
Alfred Ganz, Grobenzell, DE;
Karl Hartwig, Unterhaching, DE;
Christoph Jung, Munich, DE;
Gunther Schnall, Eching, DE;
Erich Schlick, Unterschleissheim, DE;
Jurgen Vossnacke, Hohenschaftlarn, DE;
Assignee:
Baldwin Piano & Organ Company, Cincinnati, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01F / ;
U.S. Cl.
CPC ...
366156 ; 118612 ; 222230 ; 366337 ;
Abstract
A developer device for electrostatic copiers includes a housing in which toner is circulated. The circulating toner is dropped in free fall at a predetermined location. Underneath that location are two side-by-side lengthwise extending channels into which the falling toner is substantially uniformly distributed. Guide baffles in one channel direct the incoming toner along the channel in one direction, and guide baffles in the other channel direct toner in the opposite direction.