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:
Oct. 08, 1996
Filed:
Feb. 03, 1995
Ricky L Martin, St. Peters, MO (US);
McDonnell Douglas Corporation, St. Louis, MO (US);
Abstract
A method for forming a gas-filled consolidated metal billet, involving preparing a metallic shell container, filling the shell with a metal core material and pressurized gas, and consolidating the shell and its contents to form the billet. The consolidated billet is further formed in the same manner as solid metal components by conventional wrought mill working technologies. After thus forming a shaped billet having a predetermined, desired geometry, it is subjected to a heat treatment that expands the gas trapped within the core, to produce in situ a metal body having an integral sandwich-type structure with a solid metal facing and a porous metal core.