Claims
- 1. A homogeneous, one-piece boomerang utilizing circular airfoils in the form of disks comprising:
a. a main disk with two control disks affixed to its perimeter at their perimeters, sufficient to provide rigidity, spaced approximately 100° apart and lying in a generally common plane; b. said main disk having a diameter approximately one-third greater than the diameters of each said control disk; c. said main disk and said control disks being essentially round and having a predetermined thickness and being convex across their front surfaces forming three distinct essentially circular airfoils.
- 2. A homogeneous, one-piece boomerang utilizing circular and elliptical airfoils in the form of disks comprising:
a. an essentially round main disk with two essentially elliptical control disks affixed to its perimeter at their perimeters, sufficient to provide rigidity, extending lengthwise outward from edge of said main disk, space approximately 100° apart and lying in a generally common plane; b. length of each said elliptical control disk being approximately 150% of the width of same; c. surface area of said main disk being approximately equal to the combined surface area of said elliptical control disks; d. said main disk and said control disks having a predetermined thickness and being convex across their front surfaces forming three distinct airfoils.
- 3. A homogeneous, one-piece boomerang utilizing circular airfoils in the form of disks comprising:
a. a main disk with three control disks equally spaced about its perimeter and affixed thereto sufficient to provide rigidity and lying in a generally common plane; b. said main disk having a diameter approximately one-third greater than the diameters of each said control disk; c. said main disk and said control disks being essentially round and having a predetermined thickness and being convex across their front surfaces forming four distinct, essentially circular, airfoils.
Parent Case Info
[0001] This application is a continuation of application Ser. No. 09/243,751, Feb 3, 1999, now abandoned.
Continuations (1)
|
Number |
Date |
Country |
Parent |
09243751 |
Feb 1999 |
US |
Child |
09754560 |
Jan 2001 |
US |