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. 24, 2014
Filed:
Oct. 05, 2006
Applicant:
Hans Martensson, Trollhättan, SE;
Inventor:
Hans Martensson, Trollhättan, SE;
Assignee:
Volvo Aero Corporation, Trollhättan, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 5/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
A rotor element includes at least one irregularity with regard to rotational properties in its circumferential direction and the irregularity is positioned so as to separate the mechanical natural frequencies of the rotor element.