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Microwave-heatable exercise putty in a container with temperature indicator

  • US 5,786,578 A
  • Filed: 06/30/1997
  • Issued: 07/28/1998
  • Est. Priority Date: 06/30/1997
  • Status: Expired due to Fees
First Claim
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1. A microwave-heatable therapeutic exercise putty mass packaged in a microwaveable container having at least one transparent wall, said putty mass being in heat transfer proximity with said transparent container wall, and thermochromic heat sensitive semiconductor material affixed to said transparent wall within said container and in intimate heat transfer contact with said putty mass, said thermochromic material providing a visual first indication through said transparent wall when said putty mass has been microwave heated to a therapy acceptable temperature range of about 40 to about 47 degrees C. and a visual second indication through said transparent wall when said putty mass has been microwave heated to a temperature range of about 54 to about 60 degrees C. or above which is non-acceptable for heat therapy.

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