Paddle
AssigneeJoel C. Haas
InventorJoel C. Haas
Life of this patent
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Abstract
A paddle blade including a plurality of blades that allows fluid flow in between and along the plurality of blades. Each of the plurality of blades may have an airfoil shape and may be positioned parallel to each other. The plurality of blades may include a central diverter blade including two symmetrical, concave lateral faces. The concave lateral faces are configured to redirect, along arcuate paths, fluid flow from a direction approximately perpendicular to a front face of the paddle blade toward lateral sides of the paddle blade. The plurality of blades also includes a first and a second pair of blades positioned on opposite lateral sides of the central diverter blade, each arranged to at least partially overlap either one of the concave lateral faces of the central diverter blade or an adjacent blade of the first pair of blades respectively.
Claims10
A paddle comprising:
- a paddle blade comprising a plurality of blades comprising:
- a central diverter blade shaped as an approximately triangular prism, the central diverter blade comprising two symmetrical, concave lateral faces sharing a leading edge, the concave lateral faces configured to redirect, along arcuate paths, fluid flow from a direction approximately perpendicular to a front face of the paddle blade toward lateral sides of the paddle blade;
- a first pair of blades positioned on opposite lateral sides of the central diverter blade, each blade of the first pair of blades arranged to at least partially overlap one of the concave lateral faces of the central diverter blade, the first pair of blades each having an airfoil shape configured to further redirect the fluid flow along arcuate paths and increase a drag of the paddle blade through fluid;
- and
- a second pair of blades positioned on opposite lateral sides of the first pair of blades, each blade of the second pair of blades arranged to at least partially overlap an adjacent blade of the first pair of blades, the second pair of blades each having an airfoil shape configured to further redirect the fluid flow along arcuate paths and increase the drag of the paddle blade through fluid.
A paddle comprising:
- a paddle blade comprising a plurality of blades and a central diverter blade wherein each of said plurality of blades has an airfoil shape with a leading edge and a trailing edge, and is positioned parallel to at least one other adjacent blade of said plurality of blades such that a gap exists between adjacent blades, and
- wherein the plurality of blades are configured to overlap in a cascading configuration and the central diverter blade is configured such that fluid flow initially directed perpendicular to a front face of the paddle blade is turned by the central diverter blade to flow along the airfoil shape of at least one of the plurality of the blades toward a side of the paddle board such that separation of the flow from the leading edge to the trailing edge of said one of the plurality of the blades is prevented.
Dependencies are inferred from the claim text.