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:
Jul. 01, 2003
Filed:
Feb. 02, 2001
Applicant:
Inventors:
Bernhard Scherzinger, Graz, AT;
Helmuth Gabl, Graz, AT;
Assignee:
Andritz AG, Graz, AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21D 5/02 ;
U.S. Cl.
CPC ...
D21D 5/02 ;
Abstract
A device and process for aerating dispersions, particularly for flotation of pulp suspensions, in a de-inking process where the pulp suspension containing dirt particles is sprayed into a tank together with air. The air is injected at a minimum of two successive points and mixed with the suspension.