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.:

US 7449658 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 11, 2008

Filed:

Apr. 06, 2004
Applicant:

Rainer Mielke, Oberursel, DE;

Inventor:

Rainer Mielke, Oberursel, DE;

Assignee:

Roll-Royce Deuschland Ltd & Co KG, Blankenfelde-Mablow, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 26/34 (2006.01);
U.S. Cl.
CPC ...
Abstract

Repair of compressor blades () of aircraft engines is performed by build-up welding against an essentially horizontal backing () whose surface shape is the exact negative of the respective bottom side of the blade to be repaired. With low rework effort, the blades of blisks can, in the installed state, be repaired or fully restored at any point with high quality upon removal of the damaged portion.


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