Marine propulsion – Screw propeller – Propulsion unit casing
Reexamination Certificate
2007-07-24
2007-07-24
Basinger, Sherman (Department: 3617)
Marine propulsion
Screw propeller
Propulsion unit casing
Reexamination Certificate
active
11047516
ABSTRACT:
A cowling assembly for an outboard motor includes a top cowling and a bottom cowling for covering an internal combustion engine for an outboard motor. The top cowling is formed by pressing a nonferrous material. The top cowling includes an opening edge and attaching surfaces of an annular rail are secured to an inner side of the opening edge of the top cowling thereby reinforcing the opening edge and enhancing its mounting strength. Furthermore, a seal formed along an opening edge of the bottom cowling and the opening edge and annular rail of the top cowling provides enhanced sealing by extending the sealing surfaces in different directions.
REFERENCES:
patent: 3172927 (1965-03-01), Mojonnier
patent: 3414941 (1968-12-01), Ignell
patent: 4930790 (1990-06-01), Sheridan
patent: 5052353 (1991-10-01), Dunham et al.
patent: 5120248 (1992-06-01), Daleiden et al.
patent: 5302147 (1994-04-01), Oishi
patent: 2002-349257 (2002-04-01), None
Basinger Sherman
Yamaha Marine Kabushiki Kaisha
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