Boomerang

Details Boomerang Boomerang

1983-12-21

1984-10-30

Shapiro, Paul E.

Amusement devices: games

Problem eliciting response

273426, A63B 6508

Patent

active

044796552

ABSTRACT:
A boomerang of circular configuration. A planar ring having a streamlined cross-section described by a convex upper surface and a straight lower surface defines a central opening and an outer perimeter. Three wings extend radially from the outer perimeter and have a similar cross-section. The wings are twisted relative to the plane of the ring to produce aerodynamic lift. The planiform area of the central opening is about 115 percent of the total planiform area of the wings. The ring and body are constructed with an inner plastic armature, surrounded by a cushion of elastomeric materials softer than the armature.

REFERENCES:
patent: 4222573 (1980-09-01), Adler
patent: 4421320 (1983-12-01), Robson

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