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:
Jun. 07, 2022
Filed:
Jun. 29, 2020
Method of and an arrangement for adding a chemical to an approach flow system of a fiber web machine
Applicants:
Wetend Technologies Oy, Savonlinna, FI;
Valmet Technologies Oy, Espoo, FI;
Inventors:
Assignees:
WETEND TECHNOLOGY OY, Savonlinna, FI;
VALMET TECHNOLOGIES OY, Espoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21F 1/02 (2006.01); B01F 5/04 (2006.01); D21B 1/34 (2006.01); D21H 21/10 (2006.01);
U.S. Cl.
CPC ...
D21F 1/02 (2013.01); B01F 5/0403 (2013.01); D21B 1/342 (2013.01); D21H 21/10 (2013.01);
Abstract
A method of and an arrangement for adding a chemical to an approach flow system of a fiber web machine by mixing of a retention chemical to a fibrous stock flowing in an approach flow system of a fiber web machine by a mixer () between the attenuator () and the headbox ().