Marine propulsion – Screw propeller
Patent
1994-03-14
1995-04-11
Avila, Stephen P.
Marine propulsion
Screw propeller
440900, B63H 2126
Patent
active
054052777
ABSTRACT:
A boat motor conversion apparatus for converting a line trimmer into a boat motor comprising a tube having an upper end and a lower end, the upper end adapted to be coupled to a line trimmer's motor housing; an elongated drive shaft disposed within the tube, the drive shaft having a tip end extending from the upper end of the tube and a base end extending from the lower end of the tube, the tip end adapted to be coupled to a line trimmer's drive motor, whereby the drive motor rotates the drive shaft within the tube when activated; a boat motor having a plurality of gears coupled to the base end of the drive shaft for redirecting rotational movement therefrom and a propeller coupled to the gears; and a securement mechanism coupled to the tube and adapted for securing the tube to the stern of a boat.
REFERENCES:
patent: 3323482 (1967-06-01), Sanborn
patent: 4450670 (1984-05-01), Robinson
patent: 4604067 (1986-08-01), Roberts
patent: 4752256 (1988-06-01), Dorion
patent: 4976637 (1990-12-01), Newell et al.
patent: 5017167 (1991-05-01), Govan
patent: 5083948 (1992-01-01), Grobson
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