A - Human Necessities – 63 – B
Patent
A - Human Necessities
63
B
273/86
A63B 69/22 (2006.01) A63B 69/32 (2006.01) A63B 69/34 (2006.01) A63B 21/06 (2006.01)
Patent
CA 1171888
ATHLETIC BAG OF CONTROLLABLE BLOW RESPONSIVE CHARACTERISTICS ABSTRACT OF THE DISCLOSURE: An athletic bag of controllable blow responsive characteristics, so that the firmness of the bag and its resistance to a blow delivered against it, as by a fist of a boxer or a hand, foot or limb of one practicing karate or another of the martial arts, may be regulated, as desired, includes a valved flexible container filled with liquid and gas under pressure greater than atmospheric. The higher the gas pressure, the firmer the bag. In a greatly preferred embodiment of the invention the bag includes a flexible substantially non-elastomeric outer cover, an elastomeric or flexible fluid-tight inner bladder of approximately the same size, and valve means, including a mouthpiece, for pressurizing the bladder and the bag by mouth. Surprisingly, relatively small increases in gas pressure in the bag greatly modify the blow responsive characteristics thereof. In other embodiments of the invention the bag includes means for hanging it from an overhead support, swivel means for allowing it to rotate when struck off center, restraining means for inhibiting rotation, indicators for recording the number, force and velocity of blows delivered to the bag, and a special bag construction which adapts it for use in practicing uppercut punches or hits.
383810
Critelli Thomas P.
Fetherstonhaugh & Co.
LandOfFree
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