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Exercise ball with an air layer

  • US 6,517,471 B2
  • Filed: 06/11/2001
  • Issued: 02/11/2003
  • Est. Priority Date: 06/11/2001
  • Status: Expired due to Fees
First Claim
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1. An exercise ball comprising:

  • a bladder;

    a yarn lining wound on an outer face of the bladder;

    an air layer formed between the outer face of the bladder and the yarn lining;

    a cloth lining wrapped on the yarn lining;

    an adhesive layer applied on an outer surface of the cloth lining;

    a sponge lining securely attached to the cloth lining by the adhesive layer; and

    an outer surface securely engaged with the sponge lining.

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