Title: Flying saucer or throwing disk used in sports games

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Claims: I claim:

1. A throwing disk comprising:

(a) a substantially planar, central ring part having an aperture, an inner edge, and an outer circumference;

(b) a plurality of wings distributed about said outer circumference; each of said wings comprising:

(1) a substantially planar first wing section directly adjoining said outer circumference and being substantially co-planar with said central ring part;

(2) a second wing section with a free outer rim, said second wing section adjoining said first wing section and extending, with respect to said outer circumference, essentially in a peripheral direction and being bent with respect to said first wing section; and

(3) a further free rim adjoining the first wing section; wherein:

(i) said second wing section is bent in such manner that said bend is located along an edge of said first wing section which forms an angle of between 40.degree.-50.degree. with a chord of the outer circumference of said central ring portion, said cord originating at the ending point of the first wing section and terminating at the starting point of the first wing section with respect to said outer circumference of the central ring part and;

(ii) said further free rim of said first wing section is bent in a direction opposite to the bend of said second wing section such that when said central ring part is in a horizontal position, the bends of said free rim and said second wing section extend in respective upward and downward directions.

2. A throwing disk according to claim 1, wherein said angle is 45.degree..

3. A throwing disk according to claim 1, wherein said bends are curves.

4. A throwing disk according to claim 1, wherein said free outer rim of said second wing section is bent in a direction opposite to the bend of said free rim of said first wing section.

5. A throwing disk according to claim 1, wherein the inner edge of said central ring part is bent substantially in the direction of the bend of said second wing section.

6. A throwing disk according to claims 1 or 3, wherein a planar projection of an outer contour of each wing is generated by an arcuate connection of end points of radial rays a, said rays forming an angle w with said outer circumference cord.

7. A throwing disk according to claim 3, wherein said free outer rim of said second wing section is curved in a direction opposite to the curve of said free rim of said first wing section.

8. A throwing disk according to claim 3, wherein the inner edge of said central ring part is curved substantially in the direction of the curve of said second wing section.

9. A throwing disk according to claims 1 or 3, wherein said second wing section adjoins said central ring part by way of an undercut.

10. A throwing disk according to claim 6, wherein said end points are approximately determined by the application of the following mathematical formula:

    ______________________________________
    w = 0.degree.    a = r
    w = 30.degree.   a = 0.7-0.8r
    w = 60.degree.   a = 0.55-0.65r
    w = 90.degree.   a = 0.45-0.5r
    w = 120.degree.  a = 0.25-0.35r
    w = 90.degree.   a = 0.1-0.2r
    ______________________________________

11. A throwing disk according to claim 6, wherein said end points are approximately determined by the following mathematical formula:

    ______________________________________
    w = 0.degree.    a = r
    w = 21.2.degree. a = 0.75-0.85r
    w = 42.8.degree. a = 0.65-0.7r
    w = 60.degree.   a = 0.55-0.6r
    w = 90.degree.   a = 0.4-0.5r
    w = 105.5.degree.
                     a = 0.35-0.45r
    w = 120.degree.  a = 0.2-0.3r
    w =  90.degree.  a = 0.08-0.2r (undercut)
    ______________________________________

12. A throwing disk according to claim 6, wherein said end points are approximately determined by the application of the following mathematical formula:

    ______________________________________
    w = 0.degree.    a = r
    w = 30.degree.   a = 0.6-0.9r
    w = 60.degree.   a = 0.4-0.8r
    w = 90.degree.   a = 0.35-0.55r
    w = 120.degree.  a = 0.15-0.4r
    w = 90.degree.   a = 0.05-0.25r (undercut)
    ______________________________________

13. A throwing disk according to claim 6, wherein said end points are approximately determined by the application of the following mathematical formula:

    ______________________________________
    w = 0.degree.    a = r
    w = 21.2.degree. a = 0.7-0.9r
    w = 42.8.degree. a = 0.6-0.75r
    w = 60.degree.   a = 0.5-0.65r
    w = 90.degree.   a = 0.35-0.55r
    w = 105.5.degree.
                     a = 0.3-0.5r
    w = 120.degree.  a = 0.15-0.4r
    w = 90.degree.   a = 0.0-0.3r (undercut)
    ______________________________________

14. A throwing disk according to claim 6, wherein:

(a) at w=60.degree., the outer contour is parallel to said outer circumference chord;

(b) at w=90.degree., the outer contour is tangent to a circle which circumscribes the wings and is concentric with said outer circumference of said central ring part;

(c) at w=120.degree., the outer contour of the wing is tangential to the radius of said central ring part.

15. A throwing disk according to claims 1, 3 or 8, wherein a distance from said inner edge of an inner circumference of the central ring part to said chord of said outer circumference is at least 1.5 times a maximum distance between said chord and said outer circumference.

16. A throwing disk according to claims 1, 3, 4, 5, 7 or 8 wherein said throwing disk is provided with six wings with said outer circumference chords forming a hexagon which is circumscribed by said outer circumference.

17. A throwing disk according to claim 9, wherein a distance from said inner edge of an inner circumference of the central ring part to said cord of said outer circumference is at least 1.5 times a maximum distance between said chord and said outer circumference.

18. A throwing disk according to claim 9, wherein:

    ______________________________________
    w = 0.degree.    a = r
    w = 30.degree.   a = 0.752r
    w = 60.degree.   a = 0.594r
    w = 90.degree.   a = 0.477r
    w = 120.degree.  a = 0.277r
    w = 90.degree.   a = 0.112r (undercut)
    ______________________________________

19. A throwing disk according to claim 11, wherein:

    ______________________________________
    w = 0.degree.    a = r
    w = 21.2.degree. a = 0.789r
    w = 42.8.degree. a = 0.678r
    w = 60.degree.   a = 0.578r
    w = 90.degree.   a = 0.460r
    w = 105.5.degree.
                     a = 0.416r
    w = 120.degree.  a = 0.269r
    w = 90.degree.   a = 0.095r (undercut)
    ______________________________________

Description
Other info:

Inventors: Bohm, Hans-Peter (75 Karlsruhe, DE, US)

Application Number: 879757
Filing Date: 1978-02-21
Publication_date: 1980-05-20
Assignee:
Primary Class(es): 446/48 473/589, 473/590, D21/444
Other Classes:
US Patent Ref:

D220272	Mar, 1971	Triplett	273/103.
1368176	Feb, 1921	McMillian	273/106.
3220142	Nov, 1965	Butterfield	273/106.
3613295	Oct, 1971	Everett	46/74.
3955817	May, 1976	Davis	46/74.
3959915	Jun, 1976	Kettlestrings	46/74.

Other Refs: 467331

Dec, 1951	IT

Primary Examiner: Pitrelli, John F.
Assistant Examiner: Skillington, G. Lee
Attorney: Craig & Antonelli