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:
Aug. 21, 2018
Filed:
Apr. 03, 2017
Applicant:
Amazon Technologies, Inc., Seattle, WA (US);
Inventors:
Brian C. Beckman, Newcastle, WA (US);
Allan Ko, Fremont, CA (US);
Assignee:
Amazon Technologies, Inc., Seattle, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64C 21/04 (2006.01); B64C 39/02 (2006.01); B64C 27/20 (2006.01); B64C 27/08 (2006.01); B64C 27/46 (2006.01);
U.S. Cl.
CPC ...
B64C 21/04 (2013.01); B64C 27/08 (2013.01); B64C 27/20 (2013.01); B64C 27/463 (2013.01); B64C 39/024 (2013.01); B64C 2201/027 (2013.01); B64C 2201/108 (2013.01);
Abstract
Ground effect acting on an aerial vehicle, such as an unmanned aerial vehicle, may be simulated by discharging a gas around propeller blades of the aerial vehicle while the propeller blades are rotating. For example, a gas, such as air, may be discharged at or near the tip of the propeller blades with enough velocity to disrupt the airflow around the blade tips, thereby altering the sound generated by rotation of the propeller blade.