초록 ▼

A molded flying disc with most of the weight concentrated in an outer annular ring. The central opening in the ring is covered by a thin sheet of material, such as plastic or cloth, stronger than a sheet of the molded material of the same thickness and diameter. The perimeter of the sheet is attache

A molded flying disc with most of the weight concentrated in an outer annular ring. The central opening in the ring is covered by a thin sheet of material, such as plastic or cloth, stronger than a sheet of the molded material of the same thickness and diameter. The perimeter of the sheet is attached to the ring.

대표청구항 ▼

A flying disc comprising: an annular member defining an open inner area and comprising an air-foil shaped cross-section defined by different curvature on opposite surfaces and having a thickness that depends on the radial point at which the thickness is measured; and a thin sheet of a different mate

A flying disc comprising: an annular member defining an open inner area and comprising an air-foil shaped cross-section defined by different curvature on opposite surfaces and having a thickness that depends on the radial point at which the thickness is measured; and a thin sheet of a different material having a lighter weight for a volume bounded by an area of unit size and by the thickness of said sheet at said area than the average weight of a volume of said annular member bounded by an area of said unit size and by the thickness of said annular member at the thickest point thereof, said sheet having an outer perimeter affixed to said annular member to cover said open inner area.