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:
Feb. 05, 2008
Filed:
Jun. 09, 2005
Jean-michel Patrick Maurice Franchet, Paris, FR;
Patrick Gesmier, Sannois, FR;
Benoit Antoine Yves Marty, Voisins le Bretonneux, FR;
Jean-Michel Patrick Maurice Franchet, Paris, FR;
Patrick Gesmier, Sannois, FR;
Benoit Antoine Yves Marty, Voisins le Bretonneux, FR;
SNECMA Moteurs, Paris, FR;
Abstract
A hollow blade is shaped by superplastic inflation of a blank made up of welded-together sheets. A die comprising two hollow shapes clamping the outline of the blank is placed inside an autoclave-forming enclosure in order to subject the blank to superplastic inflation, and the two hollow shapes are united by U-shaped clamps made of a material having a coefficient of thermal expansion that is smaller than that of the material constituting said shapes.