Threshold calorimeter/shelf life monitor

Details Threshold calorimeter/shelf life monitor Threshold calorimeter/shelf life monitor

2007-10-02

2007-10-02

Norman, Marc (Department: 3744)

Thermal measuring and testing

Temperature measurement

Composite temperature-related paramenter

C374S104000, C236S094000, C062S129000, C116S216000

Reexamination Certificate

active

11006431

ABSTRACT:
Threshold calorimeter/shelf life monitors having a thermally moderating housing containing a liquid solution and one or more low melting point solids all having properties correlated relative to one another and calibrated to closely match a thermal decay profile (time-temperature profile) of a perishable product being monitored and indicate, by a change in color, electrical capacitance and/or impedance, transmitted RF signals, or combination thereof, the cumulative thermal history of the product while in transit or storage and whether its time-temperature profile has been violated to a detrimental extent or if a significant amount of shelf life has been consumed.

REFERENCES:
patent: 6848390 (2005-02-01), Akers et al.

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