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US 7,451,722 B2Granted
Internal temperature measuring device
OwnerRobert Parker, Robert Burtoninventors
Life of this patent
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Abstract
An inexpensive reusable device for measuring the temperature distribution in a substrate, such as meat, poultry, or fish, is disclosed. The device is easy to read, fast and convenient and low in cost without the use of batteries. The device, which utilizes thermochromic materials mounted on one or more metal carriers, can be inserted into or placed in contact with the substrate for determining the temperature gradient across the substrate.
Claims17
An internal temperature measuring device for determining the temperature of a substrate comprising:
- a metal carrier configured for insertion into the substrate;
- at least one stripe of thermochromic material mounted to the metal carrier;
- and
- a handle connected to the metal carrier, the handle having a generally hollow teardrop shape with at least one passageway for allowing air to circulate through the handle to dissipate heat from the handle;
- wherein the thermochromic stripe exhibits a cooling hysteresis thereby resisting changing color upon cooling, whereby the time period for viewing the color change is increased.
2 more elements
Dependencies are inferred from the claim text.