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:
May. 15, 2018
Filed:
Nov. 17, 2014
The Boeing Company, Chicago, IL (US);
Sham S. Hariram, Seattle, WA (US);
The Boeing Company, Chicago, IL (US);
Abstract
Provided are fireproof flexible hoses, aircraft having fire suppression systems including such fireproof flexible hoses, and methods of forming such fireproof flexible hoses. A fireproof flexible hose includes an inner structure and an outer structure at least partially enclosing and directly interfacing the inner structure. The inner structure forms an inner surface of the fireproof flexible hose and includes a polyimide at least at the inner surface. The polyimide has good fireproofing and temperature resistant characteristics and, unlike other polymers, does not need to be thermally isolated when the hose is exposed to fire. The outer structure may be made from metal and/or non-metal and may provide mechanical support to the inner structure. The outer structure may have a convoluted shape to ensure flexibility of the overall hose assembly. In some examples, a set of gaps may be present between the outer and inner structures for additional flexibility.