Games using tangible projectile – Playing field or court game; game element or accessory... – Having at least two different types of game elements used in...
Patent
1995-09-29
1998-03-03
Marlo, George J.
Games using tangible projectile
Playing field or court game; game element or accessory...
Having at least two different types of game elements used in...
473594, 273DIG20, A63B 4304, A63B 3708
Patent
active
057229066
ABSTRACT:
A ball for use in street hockey comprised of a hollow sphere and a freely moving liquid contained within a volume of the sphere. The sphere having a smooth, unobstructed and spherical inner surface and being constructed of a bounce resistant material. The liquid, most preferably non-toxic liquid antifreeze, occupying less than one-half of the volume of the sphere and serving to dampen energy and to lower the center of gravity of the ball below its geometric center.
REFERENCES:
patent: 1991671 (1935-02-01), Hodson
patent: 2670206 (1954-02-01), Brewster
patent: 4119315 (1978-10-01), Goldfarb
patent: 4244855 (1981-01-01), Cox et al.
patent: 4448418 (1984-05-01), McNeill
patent: 4872676 (1989-10-01), Townsend
patent: 5149096 (1992-09-01), Keating
patent: 5516098 (1996-05-01), Aiello
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