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:
Jun. 11, 2019
Filed:
Aug. 22, 2017
Applicant:
Aurora Flight Sciences Corporation, Manassas, VA (US);
Inventor:
Amanda Kaufman, Manassas, VA (US);
Assignee:
Aurora Flight Sciences Corporation, Manassas, VA (US);
Primary Examiner:
Int. Cl.
CPC ...
B63H 1/26 (2006.01); B63G 8/00 (2006.01); B63H 21/17 (2006.01);
U.S. Cl.
CPC ...
B63H 1/26 (2013.01); B63G 8/001 (2013.01); B63H 21/17 (2013.01); B63B 2702/04 (2013.01); B63G 2008/002 (2013.01);
Abstract
A marine propeller is disclosed having two blades. The shape of the propeller blades remains constant through the radial position of the propeller blades. The blade length of the propeller blades changes as a function of the radial position of the propeller blade. The twist angle of each blade starts at approximately 63 degrees at the propeller hub (proximal end) and decreases to about 15 degrees at the blade tip (distal end).