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:
Nov. 17, 2020
Filed:
Nov. 06, 2017
Applicant:
Massachusetts Institute of Technology, Cambridge, MA (US);
Inventors:
Thomas Sebastian, Maynard, MA (US);
Christopher Strem, Ellicott City, MD (US);
Assignee:
Massachusetts Institute of Technology, Cambridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64C 11/00 (2006.01); B64C 11/18 (2006.01); F01D 5/14 (2006.01); F01D 5/16 (2006.01); B64C 11/20 (2006.01); B64C 11/02 (2006.01); B64C 39/02 (2006.01);
U.S. Cl.
CPC ...
B64C 11/008 (2013.01); B64C 11/18 (2013.01); B64C 11/20 (2013.01); F01D 5/141 (2013.01); F01D 5/147 (2013.01); F01D 5/16 (2013.01); B64C 11/02 (2013.01); B64C 39/024 (2013.01); B64C 2201/108 (2013.01); B64C 2201/162 (2013.01); F05D 2240/307 (2013.01);
Abstract
The propeller includes a hub supporting a plurality of elongate propeller elements in which a tip of a leading propeller element curves into contact with a trailing propeller element to form a closed structure with increased stiffness and reduced acoustic signature.