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.

Date of Patent:
Jun. 23, 2020

Filed:

Jun. 19, 2017
Applicant:

Bell Helicopter Textron Inc., Fort Worth, TX (US);

Inventors:

Brent Scannell, Quebec, CA;

Thomas Mast, Carrollton, TX (US);

Assignee:

BELL HELICOPTER TEXTRON INC., Fort Worth, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64D 33/02 (2006.01); B64C 27/12 (2006.01); B64C 1/10 (2006.01); B64C 29/00 (2006.01); B64D 45/00 (2006.01);
U.S. Cl.
CPC ...
B64D 33/02 (2013.01); B64C 1/10 (2013.01); B64C 27/12 (2013.01); B64C 29/0033 (2013.01); B64D 2045/009 (2013.01);
Abstract

In one embodiment, there is described an inlet plenum assembly for a rotary aircraft, including: an inlet plenum defined on a first side by an inlet plenum wall and on a second side by a forward firewall assembly; the inlet plenum wall having a mechanical interface for receiving a reduction gearbox (RGB) to provide reduction gearing to the drive shaft; and the forward firewall assembly having an inlet aperture configured to receive a drive shaft to rotatably couple to an engine; wherein the forward firewall assembly includes a forward firewall upper and a forward firewall lower, the forward firewall upper configured to removably seat to the forward firewall lower.


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