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:
Nov. 25, 2008
Filed:
Oct. 11, 2006
Brandon R. Doering, West Jordan, UT (US);
James C. Harmon, Salt Lake City, UT (US);
James G. Shaw, Draper, UT (US);
Brandon R. Doering, West Jordan, UT (US);
James C. Harmon, Salt Lake City, UT (US);
James G. Shaw, Draper, UT (US);
EnviroTech Pumpsystems, Inc., Salt Lake City, UT (US);
Abstract
A centrifugal pump of the chopper type is disclosed which is structured with a chopper plate and impeller that are configured with an open eye or 'hubless' arrangement such that processing of solids through the pump does not result in clogging of solids at or near the center of the impeller, thereby producing a dead zone. Because the configuration of the chopper pump of the present invention avoids the development of a central dead zone or clogging of solids, and provides for flow of solids and fluid through the eye of the impeller, pump efficiencies are markedly improved.