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:
May. 03, 2016
Filed:
Nov. 12, 2012
Applicant:
Becker Marine Systems Gmbh & Co., KG, Hamburg, DE;
Inventor:
Dirk Lehmann, Winsen/Luhe, DE;
Assignee:
Becker Marine Systems GmbH & Co KG, Hamburg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B63H 1/26 (2006.01); F01D 5/14 (2006.01); B63H 1/28 (2006.01); B63H 5/10 (2006.01);
U.S. Cl.
CPC ...
F01D 5/14 (2013.01); B63H 1/28 (2013.01); B63H 5/10 (2013.01); B63H 2001/283 (2013.01);
Abstract
A drive system of a watercraft includes a propeller rotatable about a propeller axis, and at least one rotor fin which is disposed freely rotatably about the propeller axis. The diameter of a circular path described by the rotation of the at least one rotor fin is less than the diameter of the propeller.