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. 12, 2018

Filed:

Mar. 25, 2016
Applicant:

The United States of America As Represented BY the Secretary of the Navy, Washington, DC (US);

Inventors:

Hoa G. Nguyen, San Diego, CA (US);

Aaron B. Burmeister, San Diego, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B64C 25/28 (2006.01); B64C 25/32 (2006.01); B64C 25/52 (2006.01); B64C 29/00 (2006.01); B64C 39/02 (2006.01); B64C 25/00 (2006.01);
U.S. Cl.
CPC ...
B64C 25/28 (2013.01); B64C 25/32 (2013.01); B64C 25/52 (2013.01); B64C 29/00 (2013.01); B64C 39/024 (2013.01); B64C 2025/008 (2013.01); B64C 2201/088 (2013.01); B64C 2201/141 (2013.01); B64C 2201/18 (2013.01);
Abstract

A system for landing, comprising a vertical-take-off-and-landing (VTOL) unmanned air vehicle (UAV) having landing gear, wherein the landing gear is telescopic and comprises a sensor, and wherein the landing gear is compressed upon landing on a surface, and the compression causes a signal to be sent to a system that computes the slope of the ground surface using the length of the compressed landing gear and the attitude of the UAV. If the center of gravity falls within the support area, the legs are locked and the UAV power is turned off. If the center of gravity falls outside the support area, the UAV is forced to take off and find a safer landing spot.


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