Water sport device

Details Water sport device Water sport device

2006-05-12

2008-12-09

Swiatek, Rob (Department: 3643)

Marine propulsion

Operator powered drive for propelling means

C440S025000, C441S076000

Reexamination Certificate

active

07462083

ABSTRACT:
A water sport device that enables a person to walk upright over the water consists of a boat-shaped lower part and an upper part between which a chamber is formed whereby the chamber has an inlet and opens out into an outlet. A drive mechanism actuated with the feet comprises two treadles that can be moved up and down, a propeller in the chamber that can be rotated on a vertical axis and the means for transforming the up and down movement of the treadles into a rotational movement of the propeller. The means preferably comprise a bevel gear and two free-wheel bearings.

REFERENCES:
patent: 3987749 (1976-10-01), Anderson
patent: 4795381 (1989-01-01), Willems
patent: 5088944 (1992-02-01), Kats
patent: 5429064 (1995-07-01), Cardenas
patent: 5542862 (1996-08-01), Kobayashi
patent: 5607331 (1997-03-01), Lekhtman
patent: 6468118 (2002-10-01), Chen
patent: 346419 (1921-12-01), None
patent: 1 027 092 (1958-03-01), None
http://www.waterbiking.org/EuropeanChampionship2004/index.html.

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