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. 16, 1999
Filed:
Jun. 25, 1996
Peter Gregory Donecker, Durham, CT (US);
Lawrence Nicholas Varholak, Jr, Southbury, CT (US);
Mark John Schmitz, Cheshire, CT (US);
Harold Marion Goodridge, Seattle, WA (US);
Jeffrey A Lauder, Cedar City, UT (US);
Kirk Douglas Skaggs, Federal Way, WA (US);
Dow-United Technologies Composite Products, Wallingford, CT (US);
Boeing Defense and Space Group, Seattle, WA (US);
Abstract
A method for making a corrugated fiber reinforced preform for a corrugated channel is disclosed which involves the sequential application of fiber plies to a shaping tool, each of the plies individually formed to the contours of the shaping tool, using a corrugating tools, restraining means used to maintain the plies in conformance with the tool. The plies are then subjected to debulking and heated to stabilize the fiber plies in their shaped condition, with additional plies applied thereover using the same steps of application, forming, restraining and stabilizing to produce a thick debulked fiber preform which avoids wrinkling of the fibers at the radius between the web and side portions of the corrugated channel.