Temperature indicator employing color change
First Claim
1. A temperature indicator comprisingan enclosed hollow and elongated structure, a first media disposed within the enclosed hollow and elongated structure, the first media occupying a first portion of the enclosed hollow and elongated structure and having a first color, a second media disposed within the enclosed hollow and elongated structure away from said first portion of the enclosed hollow and elongated structure and having a second color, one of the first media and second media having a melting point of at least 138°
- F. so that the first and second media mix with one another upon melting of the one of the first and second media having a melting point of at least 138°
F. and form a color that is different from the first color.
3 Assignments
0 Petitions
Accused Products
Abstract
A temperature indicator (10) including an elongated piece of tubing (12), a top cap (14), a bottom tip (16), a first media (22) with a first melting point, and a second solid media (24) with a second melting point. Mixing of the first and second media (22, 24) produces a color change within the tubing, which is noticeable at the top end of the indicator, which in use is sticking out of the food product.
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Citations
20 Claims
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1. A temperature indicator comprising
an enclosed hollow and elongated structure, a first media disposed within the enclosed hollow and elongated structure, the first media occupying a first portion of the enclosed hollow and elongated structure and having a first color, a second media disposed within the enclosed hollow and elongated structure away from said first portion of the enclosed hollow and elongated structure and having a second color, one of the first media and second media having a melting point of at least 138° - F. so that the first and second media mix with one another upon melting of the one of the first and second media having a melting point of at least 138°
F. and form a color that is different from the first color. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
- F. so that the first and second media mix with one another upon melting of the one of the first and second media having a melting point of at least 138°
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14. A temperature indicator for indicating a cooking temperature of a food product, comprising
an enclosed hollow and elongated structure, at least a portion of the structure being translucent, a temperature indicating media within the hollow and elongated structure, the temperature indicating media having a visible initial color at room temperature and a color different from the initial color at a desired temperature of at least 138° - F.,
a holder for inserting into a food product and for receiving the enclosed hollow and elongated structure in order to position a first end of the hollow and elongated structure within the interior of the food product, the holder having a length that is shorter than the length of the hollow and elongated structure, so that a second, opposite end of the hollow and elongated structure protrudes from the holder and is visible when inserted therein so that the different color can be seen through the translucent portion at the exterior of the food product. - View Dependent Claims (15, 16, 17, 18, 19, 20)
the holder has a closed, bottom end and an open top end for receiving the hollow and elongated structure. -
16. The temperature indicator of claim 15 wherein,
the holder has a flange at its open end for seating the holder into the food product. -
17. The temperature indicator of claim 15 wherein,
the open end includes a removable cap for closing the open end. -
18. The temperature indicator of claim 14 wherein,
the temperature indicating media includes a first solid media with a first color and a second solid media with a second color, the second solid media having a melting temperature that corresponds to the desired temperature, whereby upon melting of the first and second media the first and second media mix with one another to form said visible color different from the initial visible color. -
19. The temperature indicator of claim 18 wherein,
the second solid media has a specific gravity that is less than the specific gravity of the first solid media, so that with the enclosed tubular structure oriented with the first end up, the second solid media rises up into the first solid media when the two have melted, enhancing mixing of the two media. -
20. The temperature indicator of claim 18 wherein,
the first and second media are made of one of an organic material and food grade wax media.
- F.,
Specification