Time-temperature monitor and recording device and method for usi

Details Time-temperature monitor and recording device and method for usi Time-temperature monitor and recording device and method for usi

1995-06-07

1997-09-02

Bennett, G. Bradley

Thermal measuring and testing

Temperature measurement

Nonelectrical, nonmagnetic, or nonmechanical temperature...

374102, 374106, 426 88, 116219, G01K 1106

Patent

active

056624190

ABSTRACT:
A time-temperature monitor is provided that is adapted for indicating the amount of accumulated time during which the ambient temperature adjacent to the monitor is above a predetermined temperature. The time-temperature monitor comprises a viscous, non-Newtonian fluid biased within a flow path defining element, with the rate of flow therethrough being regulated by a constricting orifice disposed in a nozzle that is positioned in fluid communication with the flow path defining element.

REFERENCES:
patent: 3082624 (1963-03-01), Renier
patent: 3336212 (1967-08-01), Nicholas et al.
patent: 3362834 (1968-01-01), Kaye
patent: 3954011 (1976-05-01), Manske
patent: 3965741 (1976-06-01), Wachtell et al.
patent: 4327117 (1982-04-01), Lenack et al.
patent: 4382700 (1983-05-01), Youngren
patent: 4432656 (1984-02-01), Allmendinger
patent: 4488822 (1984-12-01), Brennan

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