Reversible flexible aerodynamic disc

• US 4,253,269 A
• Filed: 09/13/1979
• Issued: 03/03/1981
• Est. Priority Date: 09/13/1979
• Status: Expired due to Term

• Current Assignee: Richard A. Sullivan
• Original Assignee: Richard A. Sullivan
• Inventors: Sullivan, Richard A.
• Primary Examiner(s): Shay, F. Barry
• Assistant Examiner(s): Foycik, Jr., Michael J.
• Application Number:
  US06/074,950
• Time in Patent Office: 537 Days
• Field of Search: 46/74 D, 273/317, 273/424
• US Class Current: 446/46
• CPC Class Codes: A63H 33/18 Throwing or slinging toys, e.g. flying disc toys discs used in athletics A63B65/10as part of a game A63F9/02; sling weapons F41B3/00; spring toy guns F41B7/08

Abstract

A reversible aerodynamic disc-shaped object is provided, shaped as a disc, an outer rim section attached to the periphery of the disc, and a central section disposed within the center of the disc, wherein the central section contains a substantial amount of the weight of the disc-shaped object for increasing the rotational spin of the object.

The aerodynamic disc-shaped object may be reversible wherein the disc is of a thin, flexible membrane and the rim section extends from both sides of the periphery of the disc, the rim section being of sufficient weight to create an arcuate cross-sectional configuration in the disc-shaped object when the same is airborne, independent of the side of the disc-shaped object that is facing up.

Claims

1. A reversible aerodynamic disc-shaped object, comprising:

(a) a thin, flexible disc;

(b) a central section having a central axis of rotation of said disc, disposed within the center of said disc, said section comprising a substantial amount of the weight of said disc-shaped object; and

(c) an outer rim section integrally formed with the periphery of said disc, said rim section extending from opposite sides of the horizontal plane of said periphery, said rim section comprising sufficient weight to create an arcuate, cross-sectional configuration in said disc-shaped object when said object is airborne, wherein said object exhibits a concave configuration facing down independent of the side of said object that is facing down.

2. The aerodynamic disc-shaped object of claim 1 wherein said rim section is of a cylindrical shape having a planar, cross-sectional configuration extending at right angles from the periphery of both sides of said disc.

3. The aerodynamic disc-shaped object of claim 2 wherein said rim section includes circular inturned flanges at the ends of said cylindrical rim section.

4. The aerodynamic disc-shaped object of claim 1 wherein said rim section includes two cylindrical members, one end of each member being attached at the periphery of said disc, each member having a planar, cross-sectional configuration which is attached to said periphery at an acute angle therewith.

5. The aerodynamic disc-shaped object of claim 1, wherein said central section comprises a central axis.

6. The aerodynamic disc-shaped object of claim 5, wherein said central axis comprises a majority of the weight of said object.

7. The aerodynamic disc-shaped object of claim 6, wherein said central axis comprises 80 percent of the weight of said object.

8. The aerodynamic disc-shaped object of claim 5, wherein said central axis is of a magnetic material.

9. The aerodynamic disc-shaped object as recited in claim 1, wherein said rim section is equally extended at right angles to a centerline of the disc in a horizontal plane, resulting in an equal lift independent of the side of said object that is facing down.

10. The aerodynamic disc-shaped object as recited in claim 1 wherein said rim section is unequally extended at right angles to a centerline of the disc in a horizontal plane, resulting in different velocity and lift depending upon which side of said rim is facing down.