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:
Dec. 31, 2019
Filed:
May. 19, 2016
Applicant:
Goodrich Actuation Systems Sas, Buc, FR;
Inventors:
Arnauld Hervieux, Versailles, FR;
Bastien Le Riguer, Morainvilliers, FR;
Assignee:
GOODRICH ACTUATION SYSTEMS SAS, Buc, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J 15/34 (2006.01); F15B 15/14 (2006.01); F16J 15/3296 (2016.01); F16J 15/44 (2006.01); F15B 19/00 (2006.01);
U.S. Cl.
CPC ...
F16J 15/3496 (2013.01); F15B 15/1452 (2013.01); F16J 15/3296 (2013.01); F16J 15/445 (2013.01); F15B 19/005 (2013.01);
Abstract
An abradable seal is provided, comprising an outer ring arrangement and an energiser for urging said outer ring arrangement against an opposing surface, wherein an outermost surface of said outer ring arrangement defines a sealing surface of said abradable seal; wherein said outer ring arrangement is configured such that after a first period of operation said sealing surface suddenly transitions from having a relatively large surface area to having a relatively small surface area, so as to cause a sudden increase in internal leakage across the seal at said transition.