Amusement devices: games – Surface projectile game; game element – Simulated game
Patent
1975-12-31
1977-08-30
Shapiro, Paul E.
Amusement devices: games
Surface projectile game; game element
Simulated game
A63H 2700
Patent
active
040450295
ABSTRACT:
A thin disc, preferably of plastic, having an outer annular area which is upwardly convex and an annular inner area integral with the outer annular area and which slopes downwardly toward the disc axis to terminate in an annular edge which defines a coaxial circular opening. The radius of the opening may vary from a quarter of an inch up to almost one-half of the radius of the complete disc. In one embodiment of the invention, where the central opening is of the larger size, a plurality of dihedral vanes may be provided to extend between an object centrally disposed in the orifice and the inner edge of the disc defining the central opening. Such vanes may either extend radially from the centrally disposed object, or may spiral outwardly therefrom, with their leading edges being thickened and similarly disposed to provide added lift to the disc when it is pitched in a spinning motion.
REFERENCES:
patent: D209763 (1968-01-01), Mueller
patent: 2640296 (1953-06-01), Johnson et al.
patent: 3082572 (1963-03-01), Knox, Jr.
patent: 3082977 (1963-03-01), Arlin
patent: 3312472 (1967-04-01), Kerr
patent: 3765122 (1973-10-01), English
Pavitt, Jr. William H.
Shapiro Paul E.
LandOfFree
Aerodynamic orificed disc does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Aerodynamic orificed disc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aerodynamic orificed disc will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-958531