Game ball
First Claim
1. A football adapted to be manually thrown through the air, having an oblate spheroid contour being substantially symmetrical about a major and a minor axis of said oblate spheroid contour, said football having a through nozzle passage formed about said major axis, said through nozzle passage being symmetrical in cross-sectional area about said minor axis to provide maximum cross-sectional nozzle passage area at opposing longitudinal ends of said football and continuously decreasing to a minimum cross-sectional nozzle passage area at substantially a mid-point region between said opposing ends.
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Accused Products
Abstract
A football-like game ball which is manually thrown through the air. The ball has a generally truncated ellipsoid outer contour with a Venturi-like nozzle passage extending coincident with a major axis of the ball. A plurality of weighted elements are located within or adjacent to an outer wall of the ball to provide rotational stability when the ball is thrown through the air and spun about the major axis.
54 Citations
10 Claims
- 1. A football adapted to be manually thrown through the air, having an oblate spheroid contour being substantially symmetrical about a major and a minor axis of said oblate spheroid contour, said football having a through nozzle passage formed about said major axis, said through nozzle passage being symmetrical in cross-sectional area about said minor axis to provide maximum cross-sectional nozzle passage area at opposing longitudinal ends of said football and continuously decreasing to a minimum cross-sectional nozzle passage area at substantially a mid-point region between said opposing ends.
Specification