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. 24, 2011
Filed:
Mar. 15, 2007
Ewan F. Thompson, Derby, GB;
Ewan F. Thompson, Derby, GB;
Rolls-Royce PLC, London, GB;
Abstract
A method of manufacturing a hollow article () comprising the steps of cold pressing two members () to form at least one depression () in the members (). Arranging the two members () in abutting relationship such that the at least one depression () defines at least one chamber between the two members (). Sealing () the edges () of the two members () together to form a core structure (). Positioning the core structure () in a mold () to define a cavity () between the external surface () of the core structure () and the internal surface () of the mold (), the internal surface () of the mold () substantially defining the external shape of the hollow article (). Filling the cavity () between the core structure () and the mold () with a powder material (), sealing the open edge of the core structure () to the mold (). Removing gases from the cavity () containing the powder material (), applying heat and pressures to consolidate the power material to form the hollow article () in the cavity () and removing the mold () from the hollow article ().