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:
Mar. 01, 2005
Filed:
Jan. 13, 2003
Robert R. Kimberlin, Murfreesboro, TN (US);
Robert E. Harvey, Iii, Nashville, TN (US);
William M. Larson, Murfreesboro, TN (US);
William C. Rawnsley, Jr., Murfreesboro, TN (US);
Jie Jiang, Nashville, TN (US);
Robert R. Kimberlin, Murfreesboro, TN (US);
Robert E. Harvey, III, Nashville, TN (US);
William M. Larson, Murfreesboro, TN (US);
William C. Rawnsley, Jr., Murfreesboro, TN (US);
Jie Jiang, Nashville, TN (US);
Standex International Corp., Salem, NH (US);
Abstract
A motor pump is provided in which the motor rotor is optimally force balanced for enhanced operation. The motor pump includes a pump head for pressurizing a fluid, and an electric motor drives the pump head. High pressure fluid is circulated through the motor air gap. The shaft of the motor rotor is axially movable with respect to the pump head such that the motor rotor is effectively floated in high pressure fluid as the fluid flows through the motor.