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:
Jan. 16, 2001
Filed:
Aug. 14, 1998
Applicant:
Inventors:
Michael K. Morrison, Bristol, GB;
Peter A. Withers, Bristol, GB;
Terence V. Jones, Oxford, GB;
Peter E. Wood, Crawley, GB;
Assignee:
Rolls Royce PLC, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16J 1/5447 ;
U.S. Cl.
CPC ...
F16J 1/5447 ;
Abstract
A brush seal includes a mounting ring that carries radially inwardly directed bristles. A backing member attached to the mounting ring is positioned alongside the bristles. A chamber defined by the bristles and the backing member is pressurized with fluid to counteract the lateral forces imposed upon the bristles by a region of high fluid pressure that they are operationally adjacent. As a result of this balancing of forces, the bristles are free to move radially inward and outward so that their free ends remain in sealing engagement with an adjacent surface.