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. 22, 2007
Filed:
Apr. 14, 2005
Ching-pang Lee, Cincinnati, OH (US);
Anna Tam, Clifton Park, NY (US);
Kevin Richard Kirtley, Scotia, NY (US);
Scott Henry Lamson, Menands, NY (US);
Ching-Pang Lee, Cincinnati, OH (US);
Anna Tam, Clifton Park, NY (US);
Kevin Richard Kirtley, Scotia, NY (US);
Scott Henry Lamson, Menands, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
A turbine stage includes a row of airfoils joined to corresponding platforms to define flow passages therebetween. Each airfoil includes opposite pressure and suction sides and extends in chord between opposite leading and trailing edges. Each platform includes a crescentic ramp increasing in height from the leading and trailing edges toward the midchord of the airfoil along the pressure side thereof.