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:
May. 04, 2010
Filed:
Dec. 08, 2005
Dan M. Ionel, Fox Point, WI (US);
Stephen J. Dellinger, Houston, OH (US);
Robert J. Heideman, Kewaskum, WI (US);
Alan E. Lesak, Franklin, WI (US);
Dan M. Ionel, Fox Point, WI (US);
Stephen J. Dellinger, Houston, OH (US);
Robert J. Heideman, Kewaskum, WI (US);
Alan E. Lesak, Franklin, WI (US);
A. O. Smith Corporation, Milwaukee, WI (US);
Abstract
A rotor for an electric machine includes a shaft that is rotatable about an axis and defines a first diameter normal to the axis. A first core portion defines a first aperture having a first aperture diameter that is larger than the first diameter. The first core portion is positioned adjacent the shaft to define a first space. A second core portion defines a second aperture having a second aperture diameter that is larger than the first diameter. The second core portion is positioned adjacent the shaft to define a second space. A damping member is positioned in the first space and the second space. The damping member at least partially interconnects the shaft, the first core portion, and the second core portion.