Air cushion for exercise

Details Air cushion for exercise Air cushion for exercise

2006-02-28

2006-02-28

Huson, Gregory L. (Department: 3764)

Exercise devices

For track or field sport

C482S034000, C482S146000

Reexamination Certificate

active

07004886

ABSTRACT:
An air cushion for exercise in accordance with the present invention has a bladder (10) and a ballast stay (15) accommodated inside the bladder (10). The bladder (10) has a flat bottom (11) and a bulge top (12). The ballast stay (15) is thermally welded to the bottom (11) to stiffen the bottom (11) to make the air cushion stably placed on the ground. Combining the bladder (10) and ballast stay (15) in one piece makes the configuration of the air cushion simple and also simplifies the manufacturing process to reduce product cost of the air cushion.

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patent: 6390958 (2002-05-01), Chu
patent: 6554753 (2003-04-01), Weck et al.
patent: 2003/0148860 (2003-08-01), Wren
patent: 2004/0023571 (2004-02-01), Warriner

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