Crushing squish ball

Details Crushing squish ball Crushing squish ball

2011-06-14

2011-06-14

Donnelly, Jerome W (Department: 3764)

Exercise devices

Hand, wrist, or finger

Grip

C482S044000

Reexamination Certificate

active

07959541

ABSTRACT:
An ultra light but resistive ball device for exercise is provided comprising: a flexible sheet with least one preliminary broken section of collapse for allowing contraction of the sheet under bias about at least one flex point in response to an exertion of hand grip. The sheet has two free ends extending substantially half the circumference of the ball and partially folded back on the sheet. Two lateral apertures are located at opposite ends of the free ends to permit an uninterrupted collapse of the sheet. A sheath envelopes the sheet to provide a slip resistant exterior surface for grasping the ball.

REFERENCES:
patent: 5000451 (1991-03-01), MacDonald et al.
patent: 6863588 (2005-03-01), Chu
patent: 6896577 (2005-05-01), Feng

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