Paddle wheel propulsion system and improved paddle used...

Details Paddle wheel propulsion system and improved paddle used... Paddle wheel propulsion system and improved paddle used...

2006-08-15

2006-08-15

Avila, Stephen (Department: 3617)

Marine propulsion

Paddle wheel

Reexamination Certificate

active

07090553

ABSTRACT:
A paddle wheel propulsion system includes a paddle wheel mounted for rotation about its horizontal axis for propelling a vessel, and for unlimited rotation about a vertical axis perpendicular to its horizontal axis for steering the vessel. The paddle wheel is also supported for limited vertical movement relative to the vessel. Reversible power drive is provided for independently controlling movement of the paddle wheel about its vertical and horizontal axes and for elevating and lowering the paddle wheel. Improved paddles are concave on both sides to provide maximum efficiency in both direction of rotation about the horizontal axis.

REFERENCES:
patent: 624349 (1899-05-01), Lighthall
patent: 729397 (1903-05-01), Nowak
patent: 4051622 (1977-10-01), Sharp
patent: 4177014 (1979-12-01), Kephart, Jr.
patent: 5213528 (1993-05-01), Seiford, Sr.

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