Temperature indicator

Details Temperature indicator Temperature indicator

G - Physics

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G01K 1/02 (2006.01) G01K 3/00 (2006.01) G01K 11/06 (2006.01) G01K 11/18 (2006.01)

Patent

CA 1123274

IC14406 TEMPERATURE INDICATOR ABSTRACT A temperature indicator including a backing strip with an embossed well stamped therein is provided. The well contains a matrix carrier which is impregnated with a thermally responsive fusible chemical. The bottom of the well is painted a bright color. The impregnated matrix is placed over and substantially covers the colored bottom of the well. The top of the well is covered by a transparent film. At a temperature below a prede- termined level, the colored bottom of the well is substantially invisible due to the impregnated matrix being opaque, and at temperatures above such predetermined level, the colored bottom of the well is clearly visible due to the transparency of the impregnated matrix upon melting of the chemical.

339546

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