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:
Aug. 25, 2009
Filed:
Dec. 19, 2006
Applicants:
Kevin Samuel Klasing, Springboro, OH (US);
Ching-pang Lee, Cincinnati, OH (US);
Scott David Hunter, Fairfield, OH (US);
Inventors:
Kevin Samuel Klasing, Springboro, OH (US);
Ching-Pang Lee, Cincinnati, OH (US);
Scott David Hunter, Fairfield, OH (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F01D 11/02 (2006.01); F01D 9/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A turbine stage includes a stator nozzle having a row of vanes mounted between inner and outer bands. The inner band terminates in an ovate ledge converging aft from the vanes with radially outer and inner convex surfaces joined at a convex apex. The ovate ledge reduces aerodynamic losses at the rotary seal with a row of following turbine rotor blades.