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. 12, 2006
Filed:
Jan. 06, 2004
Applicants:
Paul Walter Dausacker, Saratoga Springs, NY (US);
Robert Edward Deallenbach, Schenectady, NY (US);
Allyn Keith Holliday, Rotterdam Junction, NY (US);
Inventors:
Paul Walter Dausacker, Saratoga Springs, NY (US);
Robert Edward Deallenbach, Schenectady, NY (US);
Allyn Keith Holliday, Rotterdam Junction, NY (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 5/30 (2006.01); F01D 5/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
The control stage buckets for a steam turbine have airfoils which are hollowed out to form an interior cavity within the airfoil. The cavity opens through the radial inner platform of the bucket and terminates short of the tip of the bucket. The buckets are therefore of reduced weight. This reduced weight causes reduced creep damage in the axially extending dovetails along the rotor rim.