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. 02, 2002
Filed:
Sep. 19, 2000
Applicant:
Inventor:
Martin Kemper, Weingarten, DE;
Assignee:
Voith Sulzer Papiertechnik Patent GmbH, Ravensburg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21C 9/02 ;
U.S. Cl.
CPC ...
D21C 9/02 ;
Abstract
Process and device for the flotation of contaminates out of an aqueous fibrous suspension using a foam. The process includes creating the foam, introducing the fibrous suspension into the foam, transferring contaminates from the fibrous suspension to the foam, and removing some portion of the fibrous suspension from the foam as an accepted stock. The device includes a liquid containing area, a mechanism for introducing a gas into the liquid containing area, and a mechanism for introducing the fibrous suspension into a foam containing area arranged to be adjacent the liquid containing area.