Marine propulsion – Oar or paddle
Patent
1997-06-03
1999-05-11
Swinehart, Ed L.
Marine propulsion
Oar or paddle
114221R, B63H16/04
Patent
active
059021624
ABSTRACT:
This aquatic sporting device can be used by paddlers of water crafts or boats to paddle their craft or alternately use their paddles as quick-action squirt guns or water cannons with high range and high water exchange rate. The ridged paddle is transformed into a squirt gun by hand turning a nut on the paddle shaft to free the movement of a piston within the paddle shaft, inserting the bottom end of the paddle into the water and then pulling on the paddle handle to draw a central piston several feet out of the outer paddle shaft thereby creating a suction which draws water into the paddle shaft through a nozzle at the bottom end of the paddle blade. The paddle is lifted out of the water and pointed toward the target then the handle is pushed causing the piston to forcefully squirt the water, within the paddle shafts' water chamber, out of the nozzle. The squirt gun can be switched back to paddle mode by pushing the piston back into the outer shaft and re-tightening the central nut. When the piston is fully protracted the paddle can be used as a gaff to pull swimmers toward the boat.
REFERENCES:
patent: 3095825 (1963-07-01), Sandberg et al.
patent: 3165067 (1965-01-01), Greenwald
patent: 4133285 (1979-01-01), Phillips
patent: 5163778 (1992-11-01), Botero
patent: 5322462 (1994-06-01), Hull et al.
Barnett Doyle Wayne
Kot Richard Arn
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