Amusement devices: games – Aerial projectile game; game element or accessory therefor... – Target
Patent
1990-12-03
1991-07-30
Marlo, George J.
Amusement devices: games
Aerial projectile game; game element or accessory therefor...
Target
273DIG8, 273DIG20, 273 58J, 119 295, B29C 2708, A01K 2900
Patent
active
050354256
ABSTRACT:
A novelty ball is disclosed which is formed from a spherical shell of high density elastomeric polyurethane polymer. The polyurethane shell has a wall thickness sufficient to return the shell to its original shape following deformation. In one embodiment, the interior of the shell is hollow whereas in a second embodiment, the hollow interior is filled with a low density polyurethane foam. A flavoring can also be added to the polyurethane which is appealing to animals, such as dogs. The shell has a hardness ranging between approximately 35 and 60 Shore D as measured by the ASTM (American Society of Testing Materials) that 2240; an ultimate tensil strength between approximately 20 and 25 MPa (mega pascals) measured by ASTM test D412; an ultimate elongation ranging between approximately 500 and 600%; a tensil strength between approximately 6.9 and 16.5 MPa at 100% elongation; and between approximately 10.3 and 19 MPa at 300% at 50% elongation; a tear strength of between approximately 80 and 140 kN/m (kilo Newtons per meter) measured by ASTM Test D 624-DieC; and a compression set of between approximately 30% and 40% at 70.degree. C. over a 22 hour period.
REFERENCES:
patent: 1534964 (1925-04-01), Kahnweiler
patent: 2866774 (1958-12-01), Price
patent: 3248113 (1966-04-01), Baggenstoss et al.
patent: 4123061 (1978-10-01), Dusbiber
patent: 4326716 (1982-04-01), La Coste
patent: 4568083 (1986-02-01), Miller
patent: 4660830 (1987-04-01), Tomar
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