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:
Oct. 12, 1993
Filed:
Jan. 16, 1990
Applicant:
Inventors:
Wan T Chee, Bellevue, WA (US);
Eric L Aspinall, Federal Way, WA (US);
Assignee:
The Boeing Company, Seattle, WA (US);
Primary Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277228 ; 2441291 ; 244131 ; 277227 ; 277230 ; 277D / ; 428920 ;
Abstract
A fire-resistant seal formed of an inner layer (20) of elastomer material that is compressible and flexible, a middle layer (22) of ceramic fiber that is fire resistant, and an outer layer (24) of elastic fabric. In the preferred embodiment, the ceramic fiber middle layer (22) totally encloses the elastomer inner layer (20), and the wear-resistant outer layer (24) totally encloses the middle layer (22) and the inner layer (20). In this particular application, the fire-resistant seal (10) has a toroidal-shaped compressible portion (12) and an integrally formed flange portion (14).