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:
Aug. 29, 2006
Filed:
Aug. 09, 2002
Walter Forrest Frantz, North Bend, WA (US);
Danny A. Jorgenson, Spokane, WA (US);
Denis J. Klein, Roswell, GA (US);
Douglas D. Maben, Snohomish, WA (US);
Walter Forrest Frantz, North Bend, WA (US);
Danny A. Jorgenson, Spokane, WA (US);
Denis J. Klein, Roswell, GA (US);
Douglas D. Maben, Snohomish, WA (US);
The Boeing Company, Chicago, IL (US);
Abstract
A duct formed of a thermoplastic material is lightweight, strong, flame and smoke resistant, and non-toxic. The duct is formed from a flat laminate and does not require a specialized, disposable mandrel for supporting conventional thermoset plies. Preferably, the duct is formed from a preform, which is cut according to the desired shape and size of the duct so that trimming after the duct has been formed is not required. Additionally, features such as holes and spud locations can be provided by cutting or marking the preform before forming the duct. Each duct can be formed of multiple articulated segments that are joined by connectors.