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:
Apr. 09, 1985
Filed:
Mar. 21, 1983
Applicant:
Inventors:
Lester H Lee, Braintree, MA (US);
Kathryn M Johnson, Salem, MA (US);
Richard W Jones, Melrose, MA (US);
Assignee:
General Electric Company, Lynn, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21K / ;
U.S. Cl.
CPC ...
2915 / ; 2915 / ; 29DI / ; 29DI / ; 29DI / ; 29416 ; 415185 ; 4162 / ; 416189 ; 416194 ; 416195 ; 219 / ; 2191 / ; 2191 / ;
Abstract
Blades in the steam path of a steam turbine diaphragm are assembled into slots in full circular bands and are structurally bonded thereto by welding. After stress relief, the bands are each separated into two 180 degree pieces by line cuts which pass between adjacent blades. The bands are then welded to semicircular rings having planar mating surfaces. The welding of the rings to the bands is performed with minimum welding without concern for whether the welds enter the interface sufficiently far to contact the blades themselves.