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US 5,286,020 AGranted
Medicine ball
OwnerAndrew Carusoinventor
Life of this patent
Estimating the term…
Abstract
A medicine ball construction includes a pliable cover of leather with an inflatable rubber bladder within said cover, the bladder wall being thick and the bladder being inflated to a low pressure so that the ball is pliable and light.
Claims2
A pneumatic medicine ball comprising:
- a) an outer cover of non-stretchable, flexible material adapted to assume a spherical shape and having a small opening therein;
- and
- b) a bladder of elastomeric material having a thick, heavy, wall and a valve within said wall, said valve being inserted into the small opening within said outer cover, the thickness of said wall having a ratio of about 0.02 to the diameter of the fully inflated bladder, said bladder being inflated to a pressure of about 2-10 psi so that said ball is sufficiently pliable to be grasped easily by a small child.
Dependencies are inferred from the claim text.