Temperature indicator using thermochromic materials

Details Temperature indicator using thermochromic materials Temperature indicator using thermochromic materials

2007-10-09

2007-10-09

Bennett, G. Bradley (Department: 2859)

Signals and indicators

Vehicle

Tire inflation or deflation

C116S216000, C374S162000, C152S154200, C152S525000

Reexamination Certificate

active

10504038

ABSTRACT:
A temperature indicator for a rubber article comprises a thermochromic material, wherein the thermochromic material is a component of a rubber article selected from the group consisting of tires, belts and hoses. A rubber article containing a temperature indicator is also disclosed, wherein the temperature indicator comprises a thermochromic material compounded with an elastomeric compound to form an elastomeric temperature indicator. A method of determining the operating temperature of a rubber article comprises incorporating at least one thermochromic material into a rubber article, the at least one thermochromic material having the property of changing color at a predetermined temperature, and examining the thermochromic material for a change in color, wherein the rubber article is selected from the group consisting of tires, belts and hoses.

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