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:
May. 31, 2016
Filed:
Dec. 21, 2011
John Lang, Inver Grove Heights, MN (US);
Dan Beilke, Blaine, MN (US);
Jeff Hermes, Shoreview, MN (US);
Jared M. Krueger, Blaine, MN (US);
John Lang, Inver Grove Heights, MN (US);
Dan Beilke, Blaine, MN (US);
Jeff Hermes, Shoreview, MN (US);
Jared M. Krueger, Blaine, MN (US);
Pentair Flow Technologies, LLC, Delavan, WI (US);
Abstract
Some embodiments of the invention provide a pump including a pump chamber, a shaft at least partially positioned in the pump chamber, an impeller coupled to the shaft, and a seal coupled to the shaft. The pump also includes a wet seal chamber. The wet seal chamber can include a separator with a disc and a resilient member. The disc includes one or more slots through which fluid pressure from the pump chamber is transferred to the resilient member. The wet seal chamber substantially prevents fluid from contacting the seal in order to prolong a life of the seal.