Flexible flying disc with edge tube

Amusement devices: toys – Aerodynamically supported or retarded – Spinning disc

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Details

446 48, 273424, A63H 2700, A63B 6510

Patent

active

050786377

ABSTRACT:
A flexible flying disc used for play by adults and children as a retrieval toy for animals, particularly dogs. The disc is characterized by having an aerodynamic design for long and stable flight similar to rigid discs, yet is made of soft, flexible material which eliminates harm to humans and damage to the mouths of any animal catching it. The lower edge is made of an abrasion-resistant material which allows the disc to land and be skipped off hard surfaces without damaging the disc. A flexible tube within the disc provides a spring type action for maintaining the shape of the disc or for returning the disc to its original shape when the disc is folded or pulled out of shape. When the disc is tossed, it has a circular dome which inflates upwardly providing an air foil effect, while a lower edge, wrapped around the tube defines a toroid which provides a gyroscopic effect lending stability to the flight as the disk spins through the air. The dome includes a leading edge and a trailing edge, and the circular edge of the dome is offset from the leading and trailing edge of the disc, thereby reducing the laminar flow across the upper convex surface of the disc and in turn reducing drag thereon for longer flight.

REFERENCES:
patent: 82425 (1868-09-01), Lucey
patent: 2804123 (1957-08-01), Kling
patent: 2984937 (1961-05-01), Rendon
patent: 3935668 (1976-02-01), Phillips, Jr.
patent: 3948523 (1976-04-01), Michael
patent: 4115946 (1978-09-01), Vukmirovich
patent: 4201009 (1980-05-01), Burridge, Jr.
patent: 4335536 (1982-06-01), Magid et al.
patent: 4709928 (1987-12-01), Willingham

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