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:
Jan. 16, 2018

Filed:

Aug. 21, 2014
Applicant:

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

Inventors:

Carl D. Griffith, Colleyville, TX (US);

Brady G. Atkins, Irving, TX (US);

Awais Raza, Fort Worth, TX (US);

Paul M. Wilson, Argyle, TX (US);

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64C 27/57 (2006.01); B64C 27/04 (2006.01); B64C 13/08 (2006.01); B64C 13/18 (2006.01); B64C 13/30 (2006.01); B64C 27/56 (2006.01); B64C 27/58 (2006.01);
U.S. Cl.
CPC ...
B64C 27/57 (2013.01); B64C 13/08 (2013.01); B64C 13/18 (2013.01); B64C 13/30 (2013.01); B64C 27/04 (2013.01); B64C 27/56 (2013.01); B64C 27/58 (2013.01);
Abstract

A rotorcraft autopilot system includes a series actuator connecting a cockpit control component to a swashplate of a rotorcraft, the series actuator to modify a control input from the cockpit control component to the swashplate through a downstream control component. The rotorcraft autopilot system also includes a differential friction system connected to the cockpit control component, the differential friction system to control the series actuator to automatically adjust a position of the cockpit control component during rotorcraft flight based, in part, on a flight mode of the rotorcraft.


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