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. 19, 2004
Filed:
Apr. 18, 2003
Applicant:
Inventor:
John Paul Urban, Greer, SC (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 5/20 ;
U.S. Cl.
CPC ...
F01D 5/20 ;
Abstract
The shroud includes a seal extending continuously between leading and trailing edges of the shroud at the tip of the airfoil. A cutter tooth is provided substantially medially of the shroud and in substantial radial alignment with a line through the center of mass of the airfoil. In this manner, any moment arm generated by movement of the shroud is eliminated or minimized to reduce the stresses in the fillet region between the shroud and the airfoil tip and hence increase the creep life of the bucket.