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.

Date of Patent:
Nov. 16, 1993

Filed:

Aug. 04, 1992
Applicant:
Inventor:

John C Williams, Schenectady, NY (US);

Assignee:

General Electric Company, Schenectady, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D / ;
U.S. Cl.
CPC ...
4151692 ; 4151693 ; 4151694 ; 416191 ;
Abstract

In a steam turbine cover (18) for an axial flow steam turbine including a rotor (14), an annular row of radially extending blades (12) carried by the rotor, each blade having a leading edge (150 or 250), a trailing edge and a radial tip, at least one moisture removal groove (146 or 246) extending radially along the blade adjacent the leading edge (150 or 250), and an annular cover assembly coupling the radial tips of the annular row of blades, there is provided a plurality of circumferentially spaced, axially extending notches (158, 160 or 260) formed in the annular entrance edge (134 or 234) of the cover assembly, one notch for each blade, the notch radially exposing the leading edge and moisture removal groove of each such blade.


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