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:
Jan. 07, 1986
Filed:
Dec. 14, 1983
Applicant:
Inventors:
Serge Boudigues, Sceaux, FR;
Georges Frattacci, Issy les Moulineaux, FR;
Alain Ponthieux, Meudon, FR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D / ; F01D / ;
U.S. Cl.
CPC ...
415115 ; 416 / ; 416 / ; 4162 / ;
Abstract
The blade comprises a metal web (1) surrounded by a refractory ceramic casing (2). The central web (1) is provided with at least one ventilation passage (4) in which flows a small amount of ventilation air. The zones where there is contact between the ceramic casing (2) and the central metal web (1) are provided with cooling cavities (5) in which cooling air flows at a high rate so as to establish a forced cooling condition.