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:
Dec. 18, 2007
Filed:
May. 31, 2006
Applicant:
Joana Negulescu, Berlin, DE;
Inventor:
Joana Negulescu, Berlin, DE;
Assignee:
Rolls-Royce Deutschland Ltd & Co KG, Blankenfelde-Mahlow, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 5/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
A turbine blade locking device for axial retention of a turbine blade () having a blade root () inserted in an axially extending profiled lobe slot () of a turbine disk (), wherein, a sealing fin of a blade platform () includes, over part of its axial length, a retaining groove () featuring a semicircular cross-section, a disk lobe () of the turbine disk () is provided with a semi-spherical recess (), and a ball () is fitted into the recess () and the retaining groove ().