Marine propulsion – Screw propeller – Combined with rudder
Reexamination Certificate
2005-11-22
2005-11-22
Basinger, Sherman (Department: 3617)
Marine propulsion
Screw propeller
Combined with rudder
C440S080000, C416S128000
Reexamination Certificate
active
06966804
ABSTRACT:
A marine vessel includes a rudder support structure attached to its hull and a rudder device attached to the rudder support structure in a manner allowing pivotal movement of the rudder device relative to the rudder support structure. A first drive train includes a first propeller shaft mounted in the hull and extending from the hull. A first propeller unit is attached to the first propeller shaft and is positioned forward of the rudder device. A second drive train includes a second propeller shaft that is mounted rotatably in the rudder support structure and a second propeller unit is attached to the second propeller shaft. The second propeller unit is aft of the first propeller unit and coaxially aligned therewith.
REFERENCES:
patent: 3938464 (1976-02-01), Gill
patent: 5795199 (1998-08-01), Langenberg et al.
patent: 3808710 (1989-09-01), None
patent: 362163895 (1987-07-01), None
patent: 406056082 (1994-03-01), None
patent: 448981 (1985-01-01), None
Translation of JP 6-56082-A.
Basinger Sherman
Smith-Hill John
Smith-Hill and Bedell
Wartsila Finland Oy
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