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.

Date of Patent:
Mar. 31, 2020

Filed:

Aug. 03, 2018
Applicant:

Envirotech Pumpsystems, Inc., Salt Lake City, UT (US);

Inventors:

Eric Tobin, Ogden, UT (US);

Matt Sheppick, Sanford, ME (US);

David P. Borrowman, Murray, UT (US);

Assignee:

Trillium Pumps USA SLC LLC, Salt Lake City, UT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E03F 5/10 (2006.01); E03F 5/22 (2006.01);
U.S. Cl.
CPC ...
E03F 5/108 (2013.01); E03F 5/106 (2013.01); E03F 5/22 (2013.01);
Abstract

A prerotation basin for use in a sump pit or wet well includes a basin body having an upstanding exterior wall, an interior concavity for placement of a pump inlet therein, and a fluid entry channel formed in the basin body defined by a discontinuity in the upstanding exterior wall, where the fluid entry channel has a channel floor, the threshold of which is at an elevation that is equal to or lower than the elevation of the bottom surface of the interior concavity. The prerotation basin thereby provides a channel floor that slopes upwardly toward the bottom surface of the interior concavity to provide better solids entrainment in fluid being processed from the sump pit or wet well, and to provide self-flushing of the basin.


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