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:
Apr. 16, 2013
Filed:
Jan. 13, 2011
Juan C. Guzman, Seattle, WA (US);
Douglas A. Mccarville, Orting, WA (US);
Daniel M. Rotter, Lake Forest Park, WA (US);
Barry P. Vanwest, Bellevue, WA (US);
Juan C. Guzman, Seattle, WA (US);
Douglas A. McCarville, Orting, WA (US);
Daniel M. Rotter, Lake Forest Park, WA (US);
Barry P. VanWest, Bellevue, WA (US);
The Boeing Company, Chicago, IL (US);
Abstract
A method and apparatus for a composite stringer. A method is used for manufacturing a hollow composite stringer. Foam is formed with a mandrel installed into the foam. A composite material and the foam is laid up onto a tool in a form of a stringer. The composite material and the foam in the form of the stringer is cured to form a cured stringer. The mandrel from the foam is removed to form the hollow composite stringer.