Marine propulsion – Operator powered drive for propelling means – Rotary cranking arm
Patent
1996-02-23
1996-11-26
Swinehart, Edwin L.
Marine propulsion
Operator powered drive for propelling means
Rotary cranking arm
441130, B63H 1620
Patent
active
055779409
ABSTRACT:
The apparatus has front and rear floatable members. A main shaft is fixedly coupled to the rear end of the front member and extends upward wherein it has an upper portion defining a pivot axis. A connecting member is fixedly coupled to the front end of the rear member and extends forward and upward. The connecting member has a forward connecting portion comprising an aperture through which the upper portion of the main shaft extends such that the two members may turn relative to each other. Handle bars are connected to the main shaft. A seat is coupled to the rear member for supporting a person. Paddles having inner ends are coupled to a paddle shaft. A support is coupled to the front member for supporting the paddle shaft and paddles for rotation about a paddle axis transverse to the pivot axis. Pedals are coupled to the paddle shaft for rotating the paddles shaft and hence the paddles for movement of the outer ends of the paddles through the water below the paddle shaft for moving the apparatus in the water.
REFERENCES:
patent: D96906 (1935-09-01), Custer
patent: D187357 (1960-03-01), Silva
patent: D220222 (1971-03-01), Nolet et al.
patent: D241327 (1976-09-01), Compton
patent: D290594 (1987-06-01), Lacasse
patent: D321854 (1991-11-01), Foley et al.
patent: D345136 (1994-03-01), Schlangen et al.
patent: 1920391 (1933-08-01), Herwig
patent: 4496325 (1985-01-01), Tweg
patent: 5308268 (1994-05-01), Schmid
Swinehart Edwin L.
Zobal Arthur F.
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