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:
Feb. 03, 2015
Filed:
Feb. 23, 2012
Applicants:
Dirk Lehmann, Winsen/Luhe, DE;
Friedrich Mewis, Dresden, DE;
Inventors:
Dirk Lehmann, Winsen/Luhe, DE;
Friedrich Mewis, Dresden, DE;
Assignee:
becker marine systems GmbH & Co. KG, Hamburg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B63H 1/18 (2006.01); B63H 5/16 (2006.01);
U.S. Cl.
CPC ...
B63H 5/16 (2013.01);
Abstract
A drive system for a watercraft has a water inlet opening, a water outlet opening, and a fin system. A propellerless pre-nozzle for the drive system is configured rotationally asymmetrically in order to further improve the drive efficiency.