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. 14, 1996
Filed:
Apr. 29, 1994
Michael A Weisse, Tolland, CT (US);
Steven L Meulink, Winona Lake, IN (US);
United Technologies Corporation, Hartford, CT (US);
Abstract
An airfoil and its sub components for a gas turbine engine have a convex wall and a concave wall that are connected at leading and trailing edges. Internal supports extending from the convex and concave walls define a series of airfoil supports that have at least one primary cavity between them. Internal supports in the proximity of the edges define material absorption cavities that have a smaller cross-section than the cross section of the primary cavities. Pressure applied to the walls during the diffusion bonding process forces material inside the airfoil, and most particularly the airfoil edges, to yield towards the center of the airfoil. The material absorption cavities absorb material that yields during the diffusion bonding process and prevent buckling of the walls.