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:
Jun. 11, 1996
Filed:
Sep. 13, 1994
Shawn W Galbraith, Scotia, NY (US);
William V Coll, Niskayuna, NY (US);
Dennis R Ahl, Sprakers, NY (US);
Keith E Seconde, Schenectady, NY (US);
General Electric Co., Schenectady, NY (US);
Abstract
The diaphragm modification includes providing ring segments having radial outward projecting tenons for reception in dovetail grooves of the diaphragm bore. Seal strips extend about the outer face of the segment rings for engaging the diaphragm bore and crush pins are disposed around the sides of the tenons to provide close tolerance fit between the dovetail hooks of the diaphragm, thus accommodating any out-of-roundness or eccentricity of the diaphragm extant through prior use. Bolts are applied in tapped openings of the segment rings and diaphragm to facilitate securement of the segment rings and diaphragm and the segments 34 are seal-welded to the diaphragm. New packing ring segments are provided in the dovetail grooves along the radial inner face of the segment rings to complete the stage sealing between the diaphragm and reduced diameter rotor.