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:
Mar. 14, 1989
Filed:
Feb. 24, 1986
Applicant:
Inventors:
Santino Barcella, Neuenhof, CH;
Manfred Befeld, Ludwigshafen, DE;
Guy Faber, Oberrohrdorf, CH;
Paul Slepcevic, Nussbaumen, CH;
Assignee:
BBC Brown, Boveri & Company, Ltd., Baden, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D / ;
U.S. Cl.
CPC ...
416191 ; 228165 ; 228182 ; 228160 ; 228231 ; 2915 / ; 4162 / ;
Abstract
A control wheel intended for welding onto the high-pressure rotor of a steam turbine is manufactured from a ring of individual blades welded together. For this purpose, all of the individual blades are provided with shrouds and root platforms having welding grooves formed therein. After being welded together into a ring, closed on all sides, the control wheel is annealed, machined and finally heat-treated.