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. 15, 1983
Filed:
Nov. 26, 1979
George T Hummert, Oakmont, PA (US);
Ian R McNab, Murrysville, PA (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
The electromagnetic pump comprises specially shaped magnetic pole extensions disposed around the duct along the line of flow of the fluid. The pole extensions increase the magnetic field along the axial center line of the duct, thereby increasing the mid-duct fluid body forces which in turn increase mid-duct velocity. The pole extensions decrease both viscous drag along the electrode walls and turbulent mixing in the exit regions of the duct. Both of these reductions increase pump efficiency. Moreover, the nearly uniformed velocity profile obtained with these pole extensions reduces current leakage in the end regions of the electrodes.