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:
Sep. 01, 2009
Filed:
Aug. 22, 2005
William P. Stewart, Saint Peters, MO (US);
Donald J. Williams, Pierron, IL (US);
William P. Stewart, Saint Peters, MO (US);
Donald J. Williams, Pierron, IL (US);
Emerson Electric Co., St. Louis, MO (US);
Abstract
A method includes heating a housing of an electric machine to thermally expand the housing, positioning a mount having power and control electronics assembled thereon and in contact therewith in the housing and against an internal stop defined within the housing, and allowing the housing to cool and thermally contract against the mount thereby forming an interference fit between the housing and the mount. The interference fit secures the mount within the housing. The mount and the housing have coefficients of thermal expansion such that the interference fit is maintained across an operating temperature range of the machine. The electric machine may also include a segmented or non-segmented stator within the housing.