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:
May. 30, 2006
Filed:
Jul. 27, 2004
Applicants:
Reinhard Fried, Nussbaumen, CH;
Ulrich Rathmann, Baden, CH;
Inventors:
Reinhard Fried, Nussbaumen, CH;
Ulrich Rathmann, Baden, CH;
Assignee:
Alstom Switzerland LTD, Baden, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/70 (2006.01);
U.S. Cl.
CPC ...
Abstract
A base material () with a cooling air hole () is disclosed, means being present which prevent particles (), which are located in the cooling air () which flows through the cooling air hole () during the operation of the cooling air hole (), from closing the cooling air hole (). In this arrangement, the means can consist in the edge of the cooling air hole () being uneven or having a ridge () or the cooling air hole () being star-shaped, ellipsoidal or linear or the cooling air hole () being circular and having lateral slots ().