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Temperature-sensitive label

  • US 8,899,829 B1
  • Filed: 02/20/2013
  • Issued: 12/02/2014
  • Est. Priority Date: 02/24/2012
  • Status: Active Grant
First Claim
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1. A temperature-sensitive label, comprising:

  • at least one temperature-sensitive system comprising,a filiform shape memory member that has a first end portion lying along a first direction and a second end portion lying along a second direction and a central curved portion connecting said first portion with said second portion, the first portion having a terminal part fixedly secured to a first contact member and the second portion having a terminal part restrained by a second contact member in a non-permanent way,wherein said central curved portion is in the martensitic phase and the first and second portions are in the austenitic phase at a same temperature above a critical threshold temperature to be monitored by the label, the central curved portion having a first temperature behavior and the first and second portions each having a second temperature behavior that is different from the first temperature behavior of the central curved portion.

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