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. 10, 1998
Filed:
Aug. 13, 1996
Ken K Yasui, Huntington Beach, CA (US);
McDonnell Douglas Corporation, Huntington Beach, CA (US);
Abstract
SPF/DB structures having diagonal reinforcement webs and processes for the formation of the structures allow greater vertical web height to spacing to be formed. The diagonal webs are constructed by adding at least two additional sheets in the center of a prior art four sheet SPF/DB process. The additional sheets are welded to sheets that will become vertical webs centrally between the webs. When the core assembly so formed is superplastically deformed, the additional sheets are stretched into diagonal webs, which may be longitudinal, lateral, at an angle, or a combination to form truncated pyramidal reinforcements contained in rectangular cells, truncated hexagonal reinforcements of hexagonal cells or diagonally reinforced rows.