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. 08, 2021
Filed:
Dec. 23, 2019
Applicant:
Valmet Aktiebolag, Sundsvall, SE;
Inventors:
Elin Engqvist, Karlstad, SE;
Leif Videgren, Karlstad, SE;
Assignee:
Valmet Aktiebolag, Sundsvall, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21F 1/66 (2006.01); D21D 5/26 (2006.01);
U.S. Cl.
CPC ...
D21F 1/66 (2013.01); D21D 5/26 (2013.01);
Abstract
Aspects provide for a Whitewater processing system suitable for managing an ejected Whitewater spray during operation of a paper or board making machine. A de-air system may provide for improved removal of air from the Whitewater. A calming system may reduce turbulence in a liquid flow, reducing turbulence in the flume. The de-air system and calming system may be disposed together or separately. Certain aspects may be implemented with a turbine (e.g., used to generate electricity from the Whitewater spray). Some aspects may provide for improved handling of variable spray velocities.