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:
Feb. 09, 2021
Filed:
Aug. 06, 2018
Applicant:
Ratier-figeac Sas, Figeac, FR;
Inventor:
Bertrand Prouzet, Figeac, FR;
Assignee:
RATIER-FIGEAC SAS, Figeac, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J 15/00 (2006.01); B64C 27/12 (2006.01); B60T 1/06 (2006.01); B60T 11/236 (2006.01); B64C 27/00 (2006.01); F16D 65/18 (2006.01); F16D 65/847 (2006.01); F16J 15/06 (2006.01); F16J 15/3268 (2016.01); F16J 15/56 (2006.01); F16D 121/02 (2012.01); F16D 125/08 (2012.01); F16D 121/06 (2012.01); F16D 55/00 (2006.01);
U.S. Cl.
CPC ...
F16J 15/004 (2013.01); B60T 1/062 (2013.01); B60T 11/236 (2013.01); B64C 27/006 (2013.01); B64C 27/12 (2013.01); F16D 65/18 (2013.01); F16D 65/847 (2013.01); F16J 15/062 (2013.01); F16J 15/3268 (2013.01); F16J 15/56 (2013.01); F16D 2055/0016 (2013.01); F16D 2121/02 (2013.01); F16D 2121/06 (2013.01); F16D 2125/08 (2013.01);
Abstract
New methods and devices are described that are aimed at preventing the outbreak of fire in a hydraulic rotor brake. These methods and devices can be used in the rotor brake of a helicopter and comprise a first and second seal, with a drain groove positioned in between these two seals to drain leaked fluid away from the hot parts of the brake. In the brakes described, the second seal is positioned closer to the heat sink of the brake than the first seal. The drain groove is also connected via a channel or channels to a drain outlet or outlets.