Patent ID: 6179737
Filing Date: 2001-01-30
Classification: A63B,A63H

Abstract:
A flying disc, intended for throwing and catching, having a structure comprising:a contiguous thin central plan having top and bottom surfaces,an outer rim encompassing said central plate, said rim having an outside diameter and a cross-section comprisingan outer surface,a top edge,a bottom edge of greater radius measured from the center of the disc than said top edge,a total rim height, measured from said bottom edge to said top edge, of at least five percent of said outside diameter,a top fillet curve joining said top edge to the top surface of said central plate, anda bottom fillet curve joining said bottom edge to the bottom surface of said central plate,said top fillet curve joining said top surface of said central plate at a height between 55% and 80% of said total rim height.