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:
Oct. 07, 2008
Filed:
May. 05, 2005
Gabriel Hernandez, Kansas City, MO (US);
Jeffrey Richard Mallat, Mooresville, NC (US);
Gabriel Hernandez, Kansas City, MO (US);
Jeffrey Richard Mallat, Mooresville, NC (US);
Siemens Power Generation, Inc., Orlando, FL (US);
Abstract
A method of repairing a generator blower hub assembly () and rotor blade () removed from the generator blower hub assembly () where the rotor blade () has fatigued material in threads of a threaded blade root (). The method may include removing () at least a portion of the fatigued material to form the blade root () to a first or new diameter. Threads may be formed () on the diameter of the blade root () using a roll forming process. A collar () may be secured within a threaded hole () formed in the generator blower hub assembly () where the collar () includes internal threads () for receiving the threads formed on the diameter of the blade root (), which may be threaded into the collar (). Collar () may be fabricated of steel alloy and include relief groove () for improving the fatigue resistance of the threaded blade root () when reassembled into the generator blower hub assembly ().