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:
Jun. 30, 1992
Filed:
Jul. 25, 1990
Applicant:
Inventor:
John Sperinck, Watford, GB;
Assignee:
Rolls-Royce plc, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02G / ;
U.S. Cl.
CPC ...
60 39092 ; 403300 ;
Abstract
A removable section of duct is sealingly coupled to a relatively fixed length of duct by means of a flexible, preferably elastic, sleeve which is attached to one of the lengths of duct towards one end thereof and at its other end to a relatively stiff collar which is shaped to fit closely over the adjacent end of the other duct. The elasticity of the sleeve tends to retain the collar in position and to maintain a tight seal while permitting a degree of relative movement including longitudinal thermal growth.