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. 18, 2007
Filed:
May. 19, 2005
Kevin Joseph Barb, Halfmoon, NY (US);
Robert Edward Deallenbach, Schenectady, NY (US);
William Hunter Boardman, Iv, Burnt Hills, NY (US);
Kevin Joseph Barb, Halfmoon, NY (US);
Robert Edward Deallenbach, Schenectady, NY (US);
William Hunter Boardman, IV, Burnt Hills, NY (US);
General Electric Company, Schnectady, NY (US);
Abstract
Steam turbine bucket covers have forward and aft clearance surfaces on a pressure side edge of the cover, a contact surface between the clearance surfaces and an undercut fillet between the forward clearance surface and the contact surface. The adjoining bucket cover has forward and aft clearance surfaces, a contact surface between the clearance surfaces and an outside radius between the forward clearance surface and the contact surfaces along the suction side edge of the cover. The undercut fillet includes two different radii to minimize or eliminate fretting damage caused by high stresses in the interference fit between the contact surfaces of adjacent covers.