Marine propulsion – Screw propeller – With means effecting or facilitating movement of propulsion...
Patent
1992-06-02
1993-08-24
Peters, Jr., Joseph F.
Marine propulsion
Screw propeller
With means effecting or facilitating movement of propulsion...
440 76, B63H 2306
Patent
active
052384330
ABSTRACT:
The present invention provides an improved outer surface for an upper region of an encasing arrangement for the outboard unit of a watercraft inboard-outboard propulsion system. Particularly, an independent casing is disclosed which has a relatively smooth, even and continuous outer surface and which is mountable upon a portion of such an outboard unit. The casing mounts in such a manner that its outer surface locates so that it is substantially flush with the outer surface portions of the outboard unit encasement which lie adjacent to the mounted casing. The lack of uneven surfaces, according to the arrangement of the present invention, makes the unit particularly useful in connection with activities which employ a line which is utilized to tow someone or something behind the watercraft, as the line will not snag upon the upper region encasing arrangement.
REFERENCES:
patent: 3957011 (1976-05-01), Hurst
patent: 4565534 (1986-01-01), Bland
patent: 4642058 (1987-02-01), Sullivan
patent: 4775342 (1988-10-01), Conner et al.
patent: 4909767 (1990-03-01), Hayasaka
patent: 4971585 (1990-11-01), Bland et al.
Avila Stephen P.
Beutler Ernest A.
Peters Jr. Joseph F.
Yamaha Hatsudoki Kabushiki Kaisha
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