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:
Nov. 16, 2021
Filed:
Sep. 10, 2019
Applicant:
Rolls-royce Plc, London, GB;
Inventor:
Gervas Franceschini, Derby, GB;
Assignee:
ROLLS-ROYCE PLC, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J 15/3288 (2016.01); F01D 11/12 (2006.01); F16J 15/3276 (2016.01);
U.S. Cl.
CPC ...
F16J 15/3288 (2013.01); F01D 11/127 (2013.01); F16J 15/3276 (2013.01);
Abstract
A brush seal for sealing a leakage gap in an axial flow path between a relatively higher fluid pressure region and a relatively lower fluid pressure region, that includes an outer housing and an inner housing located at least partially within and configured for radial displacement relative to the outer housing, wherein the upstream facing inner surface of the outer housing is free of any protrusion toward the first downstream facing outer contact surface and second downstream facing outer contact surface.