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, 2000
Filed:
Oct. 27, 1998
Applicant:
Inventor:
Paul R Hayton, Bristol, GB;
Assignee:
Rolls-Royce, PLC, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
285272 ; 285184 ;
Abstract
A joint seal for articulated joints between contra-rotating sections of a gas turbine engine exhaust duct. The illustrated embodiment comprises a plurality of contra-rotatable exhaust duct sections leading to a vectorable final nozzle. The joint seal is located internally of a bearing around its inner circumference. An exhaust section may have an internal wall spaced internally from the outer wall, thus forming an annular space for conducting relatively cool air surrounding the hot gas stream. The joint seals preferably are located between adjacent ends of these inner walls.