Boomerang
First Claim
1. A boomerang comprising:
- a central disk; and
a plurality of wings extending along radii of the central disk and each wing having a remote free end;
wherein a first opening is defined in each wing and a second opening is defined in the central disk substantially aligned with the first opening along a radius of the central disk, a first tab extending from an edge of the first opening, a second extending from an edge of the second opening in a direction opposite to the first tab, the first tab being inclined in a first direction away from the central disk and the second tab being inclined in a second direction away from the central disk, the second direction being opposite to the first direction.
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Accused Products
Abstract
A boomerang includes a central disk comprised of concentric inner and outer rings that are connected by radially extending connection sections. Wings radially extend from an outer circumference of the outer ring, corresponding in position to the connection sections. The inner ring defines a central bore. Arc openings are formed between the inner and outer rings and delimited by the connection sections. Aligned openings are defined in each wing and the associated connection section. Tabs extend from edges of the openings in opposite directions and also incline in opposite directions. Further tabs are formed on and extend from an inner circumference of the outer ring. When the boomerang flies, the central bore, the arc openings, and other openings allow airflow to pass therethrough, while the tabs impose constraints to the airflow to induce stable and extended flying of the boomerang in the air.
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Citations
10 Claims
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1. A boomerang comprising:
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a central disk; and a plurality of wings extending along radii of the central disk and each wing having a remote free end; wherein a first opening is defined in each wing and a second opening is defined in the central disk substantially aligned with the first opening along a radius of the central disk, a first tab extending from an edge of the first opening, a second extending from an edge of the second opening in a direction opposite to the first tab, the first tab being inclined in a first direction away from the central disk and the second tab being inclined in a second direction away from the central disk, the second direction being opposite to the first direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification