Circular sporting article
First Claim
1. A circular sporting article comprising (a) a core material in a ring shape made of concentric adjacent windings of a long and narrow strip of spring steel having two ends, (b) a flexible covering material to cover said circular core material, (c) at least one fitting fixing the two ends of the strip of spring steel with respect to one another, and (d) at least one fitting slidably holding the concentric windings of the strip of spring steel to allow the windings to slide circumferentially with respect to one another, said article having an overall diameter approximately corresponding to the shoulder length of a user and a sectional diameter which can be easily grasped by a user.
1 Assignment
0 Petitions
Accused Products
Abstract
A circular sporting article comprising a core material in a ring shape made of a long and narrow strip of spring steel and a flexible covering material to cover said circular core material and having an overall diameter approximately corresponding to the shoulder length of a user and a sectional diameter which can be easily grasped by a user, which can be used by adults or children for improving their arm or leg strength or grasping power.
22 Citations
11 Claims
- 1. A circular sporting article comprising (a) a core material in a ring shape made of concentric adjacent windings of a long and narrow strip of spring steel having two ends, (b) a flexible covering material to cover said circular core material, (c) at least one fitting fixing the two ends of the strip of spring steel with respect to one another, and (d) at least one fitting slidably holding the concentric windings of the strip of spring steel to allow the windings to slide circumferentially with respect to one another, said article having an overall diameter approximately corresponding to the shoulder length of a user and a sectional diameter which can be easily grasped by a user.
Specification