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:
Dec. 13, 2005
Filed:
Mar. 10, 2004
Matthew D. Garratt, Pittsburgh, PA (US);
Gary H. Bray, Murrsyville, PA (US);
Diana K. Denzer, Lower Burrell, PA (US);
Patrick Ulysse, Pittsburgh, PA (US);
Matthew D. Garratt, Pittsburgh, PA (US);
Gary H. Bray, Murrsyville, PA (US);
Diana K. Denzer, Lower Burrell, PA (US);
Patrick Ulysse, Pittsburgh, PA (US);
Alcoa Inc., Pittsburgh, PA (US);
Abstract
An extruded structural member having improved damage tolerance containing a base section (); a stiffening section having at least one pair of structural stiffeners (), the structural stiffeners integral with the base section () and projecting outwardly thereof; and at least one intra-stiffener () area positioned between the pair of structural stiffeners (), the intra-stiffener area () having a microstructure with intentionally increased amounts of fiber texture to reduce the rate of fatigue crack growth in the extruded structural member.