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. 29, 2022
Filed:
Dec. 03, 2018
Applicant:
Bell Helicopter Textron Inc., Fort Worth, TX (US);
Inventors:
Russell L Mueller, Coppell, TX (US);
Tyson Henry, Arlington, TX (US);
Colton Gilliland, Northlake, TX (US);
Assignee:
TEXTRON INNOVATIONS INC., Providence, RI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B64D 35/00 (2006.01); B64C 29/00 (2006.01); F16H 57/032 (2012.01); F16H 57/04 (2010.01); F16H 57/02 (2012.01); B33Y 10/00 (2015.01); B33Y 80/00 (2015.01);
U.S. Cl.
CPC ...
B64D 35/00 (2013.01); B64C 29/0033 (2013.01); F16H 57/032 (2013.01); F16H 57/0417 (2013.01); F16H 57/0424 (2013.01); F16H 57/0479 (2013.01); B33Y 10/00 (2014.12); B33Y 80/00 (2014.12); F16H 2057/02043 (2013.01);
Abstract
Briefly, the disclosure relates to apparatuses and methods to form a gearbox enclosure comprising an external liner, an internal liner, and a variable porosity region disposed between the external liner and the internal liner. The variable porosity region may be configured to accommodate flow of the lubricant, thereby providing a capability to cool, for example, a lubricating fluid at an elevated temperature.