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. 08, 2009
Filed:
May. 25, 2005
Applicant:
James G. Shaw, Draper, UT (US);
Inventor:
James G. Shaw, Draper, UT (US);
Assignee:
EnviroTech Pumpsystems, Inc., Salt Lake City, UT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B02B 1/00 (2006.01); B02C 11/08 (2006.01); B07B 4/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A cutting ring element for a centrifugal pump of the chopper type comprises a ring-like structure having at least one cutting member positioned along the ring-like structure and extending outwardly therefrom. The cutting ring element is structured to be positioned adjacent the drive side of an impeller having cutting structures associated with the drive side of the impeller which interact with the cutting ring element to chop and reduce the size of entrained solids in a pumped fluid, or slurry, to prevent such solids from infiltrating behind the impeller.