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:
Aug. 13, 2002
Filed:
Apr. 05, 2000
Applicant:
Inventor:
Joel Quinn, South Jordan, UT (US);
Assignee:
EnviroTech Pumpsystems, Inc., Salt Lake City, UT (US);
Primary Examiner:
Int. Cl.
CPC ...
F04D 1/14 ; F04D 1/100 ;
U.S. Cl.
CPC ...
F04D 1/14 ; F04D 1/100 ;
Abstract
A rotor assembly for a centrifugal pump is configured with at least one non-planar outer surface, in either the rotor cover or the rotor, or both, to produce centrifugal forces which exert an inward force on the rotor cover and/or rotor to counterbalance centrifugal pressures and suction pressures exerted on the rotor assembly from within the rotor chamber which cause deleterious deflections of the rotor assembly, thereby limiting the operational speed of the pump, limiting suction pressure and accelerating degradation of the seals associated with the rotor cover.