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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.:

US 11634235 B1

PDFFull Text
Date of Patent:
Apr. 25, 2023

Filed:

Sep. 09, 2020

Electrically powered rotorcraft capable of autorotative landing

Applicant:

Sifly Aviation, Inc., Carmel Valley, CA (US);

Inventors:

Brian L. Hinman, Los Gatos, CA (US);

Jeffrey G. Bernstein, Middleton, MA (US);

Assignee:

SiFly Aviation, Inc., Carmel Valley, CA (US);

Attorney:

Sunstein LLP

Primary Examiner:

Timothy D Collins

Assistant Examiner:

Justin Michael Heston

Int. Cl.
CPC ...
B64D 31/06 (2006.01); B64D 27/24 (2006.01); B60L 7/18 (2006.01); G05D 1/10 (2006.01); B60L 50/60 (2019.01); B64C 27/00 (2006.01); B64C 27/57 (2006.01);
U.S. Cl.
CPC ...
B64D 31/06 (2013.01); B60L 7/18 (2013.01); B60L 50/60 (2019.02); B64C 27/006 (2013.01); B64C 27/57 (2013.01); B64D 27/24 (2013.01); G05D 1/101 (2013.01); B60L 2200/10 (2013.01);
Abstract

A method of operating an electrically powered rotorcraft of the type having a fuselage and a set of N rotors driven by a set of electric motors and coupled to the fuselage, N≥4, under a failure condition preventing ordinary operation of the rotorcraft. The method includes entering a failsafe mode of operation wherein autorotation of at least four of the rotors is enabled. The method also includes using electrical braking associated with a selected group of the rotors to control yaw of the rotorcraft.

Find Patent Forward Citations

Hinman, Brian. (2023). Electrically powered rotorcraft capable of autorotative landing (U.S. Patent No. 11634235). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11634235

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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