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:
Sep. 30, 2025
Filed:
Oct. 07, 2020
Applicant:
Sulzer Management Ag, Winterthur, CH;
Inventor:
Jukka Vainikainen, Kotka, FI;
Assignee:
Sulzer Management AG, Winterthur, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/12 (2006.01); F16J 15/34 (2006.01); F16J 15/40 (2006.01);
U.S. Cl.
CPC ...
F04D 29/128 (2013.01); F16J 15/34 (2013.01); F16J 15/406 (2013.01);
Abstract
A pump arrangement for pumping barrier liquid in a sealed space of a mechanical shaft seal includes a housing assemblable in connection with a rotatable shaft of a device to be sealed by the mechanical shaft seal. The housing includes a pumping element, which is configured to be in force transmission connection with the rotatable shaft to provide power to operate the pumping element when in use.