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:
Nov. 20, 2007
Filed:
Mar. 09, 2004
Applicants:
Helmuth Gabl, Graz, AT;
Andreas Gorton-hülgerth, Graz, AT;
Erwin Hertl, Judendorf, AT;
Inventors:
Assignee:
Andritz AG, Graz, AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B03D 1/24 (2006.01); B03D 1/14 (2006.01); D21C 5/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for controlling operation of a flotation cell, where the liquid level and the foam level in the cell are measured and controlled. The method includes measuring at least one quality characteristic of the accept leaving the cell and determining the set value(s) for the liquid level and/or the foam level on the basis of the measured quality characteristic. The method is particularly suitable for flotation of a pulp suspension, particularly in deinking flotation.