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:
Jul. 09, 1985
Filed:
Nov. 03, 1982
Graeme R Addie, Augusta, GA (US);
GIW Industries, Inc., Grovetown, GA (US);
Abstract
A centrifugal pump for pumping slurries and other abrasive liquids having an axial inlet and a circumferential outlet, an impeller rotating within a housing and a suction liner secured to the housing wherein the impeller has a radial nose projecting toward the suction liner, a wear ring providing a complementary confronting surface axially spaced from said impeller and positioned as a part of a spool piece within the suction liner. The spool piece also includes a control means connected to the wear ring to move the wear ring surface axially toward and away from the impeller nose to maintain a preselected clearance therebetween to offset the abrasive wear occurring due to the pumping of the slurry.