Throw ring
AssigneeThe Raymond Lee Organization, Inc.
InventorDavid F. McCallum
Life of this patent
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Abstract
A circular hollow ring of circular cross-section which may be tossed in the air. Three airfoil-shaped fins are each mounted equidistantly about the inner circumference of the ring to provide aerodynamic properties to the ring when it is tossed in a manner, causing the ring to rotate in the air.
Claims4
A throw ring in the shape of a tube formed as a continuous ring, with a plurality of spaced fins fixed to the inside circumferential surface of the ring, with each fin shaped with a convex external surface to provide aerodynamic lift properties to the ring, when rotated, with each said fin radially projecting from the inside circumferential surface of the ring as an integral extension of the adjacent surface of the ring for a fractional arcuate portion of the circumference of said surface, said fins spaced substantially about said inside circumferential surface, with said fins bounding a completely open central recess portion.
Dependencies are inferred from the claim text.