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:
Nov. 25, 2003
Filed:
Oct. 15, 2001
Gary Edward Yehle, Clifton Park, NY (US);
Noel Jacob Bylina, Niskayuna, NY (US);
Wayne Alan Lillibridge, Clifton Park, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
A dovetail joint between a rotor wheel and a bucket includes a male dovetail component on the rotor wheel and a female dovetail component on the bucket. The male dovetail component has axially projecting hooks with slanted surfaces along generally radially inwardly directed surfaces. The slanted surfaces form included angles with a plane normal to the axis of rotation and bisecting the wheel dovetail which are larger than 90° and remain constant for all of the hooks. Single radius fillets are also provided along the transition surfaces between the slanted crush surfaces and the neck surfaces. The stress concentrations are therefore minimized.