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:
May. 01, 2012
Filed:
Dec. 31, 2008
Applicant:
James R. Howes, Hermon, ME (US);
Inventor:
James R. Howes, Hermon, ME (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63H 1/20 (2006.01); B63H 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A male dovetail for a bucket mounted on a drum rotor for a steam turbine is provided by a tight hook-to-hook fit with the female dovetail of a retaining groove around the periphery of the drum rotor wheel. The tight hook-to-hook fit eliminates the use of loading pins which heretofore have been driven between a base of the male dovetail and a bottom of the retaining groove, a manually intensive operation with the potential to damage the bucket and the rotor.