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:
May. 04, 2021
Filed:
Apr. 05, 2018
Applicant:
Bell Helicopter Textron Inc., Fort Worth, TX (US);
Inventors:
Steven R. Ivans, Ponder, TX (US);
Terry L. Gibson, Bella Vista, AR (US);
Assignee:
Bell Helicopter Textron Inc., Fort Worth, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B64D 29/06 (2006.01); B64C 29/00 (2006.01); B64D 7/00 (2006.01); F41H 3/00 (2006.01);
U.S. Cl.
CPC ...
B64D 29/06 (2013.01); B64C 29/0033 (2013.01); B64D 7/00 (2013.01); F41H 3/00 (2013.01);
Abstract
An embodiment of the present invention provides a blocking door that is pivotally disposed on a fixed nacelle of a tiltrotor aircraft for pivoting between a stowed position when a proprotor pylon is in the substantially horizontal position and a protective blocking position in front of the proprotor pylon when the proprotor pylon is positioned in the non-horizontal position. In other aspects, there is provided a blocking door and a method of reducing infrared and/or radar signatures of rotorcraft with a rotatable proprotor.