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. 23, 2006
Filed:
Feb. 08, 2005
Applicants:
Mika Laurilehto, Turku, FI;
Oskar Levander, Turku, FI;
Inventors:
Mika Laurilehto, Turku, FI;
Oskar Levander, Turku, FI;
Assignee:
Wartsila Finland Oy, Vaasa, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63B 21/56 (2006.01);
U.S. Cl.
CPC ...
Abstract
A barge unit includes LNG receptacle and a first power generation apparatus including a first combustion engine that is operated at least partly by LNG boil-off gas and a first generator that is driven by the first combustion engine. A tug unit includes a propulsion system and a second power generation apparatus for providing power to the propulsion system. In a first operating mode of the barge and tug units the tug unit is connected to the barge unit for propelling the barge unit and the propulsion system of the tug unit is powered at least partly by the first power generation apparatus.