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. 21, 2012
Filed:
May. 14, 2008
Applicant:
Helmuth Gabl, Graz, AT;
Inventor:
Helmuth Gabl, Graz, AT;
Assignee:
Andritz AG, Graz, AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21C 5/02 (2006.01); B03D 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The disclosure relates to a process and device for aerating suspensions, particularly to flotate them, for example in deinking of pulp suspensions which includes a primary and secondary stage. In order to improve ash removal, a washing process is interposed between the primary and secondary stages.