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Grip strength device

  • US 7,470,217 B2
  • Filed: 09/19/2005
  • Issued: 12/30/2008
  • Est. Priority Date: 09/21/2004
  • Status: Expired due to Fees
First Claim
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1. A device for measuring grip strength of muscles, comprising:

  • a removable casing containing a first fluid;

    a first bellows having a closed end, the first bellows being in fluid communication with the casing, the first bellows and the casing forming a first fluid system partially filled with the first fluid;

    a second bellows containing a second fluid, the second bellows having a closed end abutting the closed end of the first bellows and forming a second fluid system; and

    means for measuring and displaying pressure exerted on the second fluid system by the first fluid system when the casing is compressed.

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