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:
Apr. 14, 2020
Filed:
Jun. 06, 2016
Applicant:
Rolls-royce Plc, London, GB;
Inventors:
Christopher Davies, Derby, GB;
Ingo H. J. Jahn, Queensland, AU;
Assignee:
ROLLS-ROYCE plc, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 11/00 (2006.01); F16J 15/34 (2006.01);
U.S. Cl.
CPC ...
F01D 11/003 (2013.01); F16J 15/3432 (2013.01); F16J 15/3472 (2013.01); F05D 2240/55 (2013.01);
Abstract
The present invention provides a sealing element for an air-riding seal system. The seal has a mounting portion for mounting on a rotor and a sealing portion having a sealing face for facing a second sealing element. A bridging portion is provided extending radially between the mounting and sealing portions. The bridging portion allows axial displacement between the mounting portion and sealing portion and/or angular variation of the sealing face relative to the mounting portion and may be a pliable/flexible membrane structure allowing said axial displacement/angular variation by flexing.