Time and/or Temperature Sensitive Devices and Methods of Use Thereof
AssigneeFreshpoint Quality Assurance Ltd.
InventorHusein SALMAN
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Abstract
An apparatus, system and method for a time temperature indicator (TTI) which is capable of providing a summary of the time and temperature history of a good to which it is coupled, optionally including with regard to providing an indication as to whether one or more temperature thresholds have been breached. According to other embodiments, the TTI specifically provides an indication as to whether a temperature threshold at or around the freeze point has been breached, optionally even without providing a time and temperature history.
Claims26
A time temperature indicator (TTI) which is capable of providing a summary of the time and temperature history, comprising an active reactant layer, a passive reactant layer and a release layer, wherein said release layer separates said active reactant layer from said passive reactant layer, and wherein physical removal of said release layer enables said active reactant layer to contact said passive reactant layer and to start indicating said summary of time and temperature history.
A threshold freeze indicator, comprising an inverse viscosity freeze material capable of providing an indication as to whether a minimum temperature threshold has been breached or provide indication to the elapsed that occurred upon exposure to a set temperature.
A threshold freeze indicator (FI), comprising a photonic crystal construction capable of providing an indication as to whether a minimum temperature threshold has been breached.
An inverse TTI (time temperature indicator) for providing a time temperature history, comprising a porous medium, an inverse melting material, a destroyable seal and an inspection window;
- wherein said porous medium is separated from said inverse melting material by said destroyable seal, and wherein upon destruction of said destroyable seal, said inverse melting material enters said porous medium and provides an optical indication of said time temperature history.
Dependencies are inferred from the claim text.