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:
Mar. 03, 1998
Filed:
Aug. 26, 1996
Ken K Yasui, Huntington Beach, CA (US);
David F Bertino, Hermosa Beach, CA (US);
Krishna Hoffman, Duarte, CA (US);
David H Hamilton, Long Beach, CA (US);
McDonnell Douglas Corporation, Huntington Beach, CA (US);
Abstract
Four sheet SPF/DB panels having thick perpendicular webs formed between face sheets for areas of high compressive stress while other areas have relatively thinner webs so that the overall weight of the panel is not excessive. The thick webs are constructed by welding doubler strips or grids to core sheets when the core sheets are welded together into a core assembly prior to panel formation. When the core assembly so formed is superplastically deformed, the outer edges of the doubler strips bond to the face sheet and then are stretched into the centers of the thick webs, thereby thickening them for additional compressive strength. Normally such are used to reinforce edge joints between panels or supporting structure.