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:
Apr. 02, 2019
Filed:
Dec. 29, 2015
Applicant:
Sulzer Management Ag, Winterthur, CH;
Inventors:
Heikki Manninen, Mänttä, FI;
Reijo Vesala, Kotka, FI;
Assignee:
SULZER MANAGEMENT AG, Winterthur, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/24 (2006.01); F04D 29/22 (2006.01); F04D 1/00 (2006.01); F04D 7/04 (2006.01); F04D 29/44 (2006.01);
U.S. Cl.
CPC ...
F04D 29/24 (2013.01); F04D 1/00 (2013.01); F04D 7/04 (2013.01); F04D 29/22 (2013.01); F04D 29/2261 (2013.01); F04D 29/445 (2013.01);
Abstract
An impeller structure for a centrifugal pump that can feed both fibrous suspensions and water into a headbox of a fibrous web machine. The centrifugal pump utilizing the impeller structure pumps stock for both liquid-laid and foam-laid paper, tissue or board making applications and pumps water or other dilution fluid into a headbox circulation. In general, the impeller of the present invention is especially suitable for all such pumping tasks in the production of fibrous webs that a pulseless or low-pulse impeller is needed.