Thermoparticulating tape

Details Thermoparticulating tape Thermoparticulating tape

1975-06-19

1976-05-18

Woodiel, Donald O.

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73 28, 73356, 116DIG14, 116114V, G01D 1300

Patent

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039570142

ABSTRACT:
A thermoparticulating tape is disclosed which comprises a flexible fibrous material, a compound which thermoparticulates at a temperature below 200.degree.C dispersed throughout the flexible fibrous material, and a flexible outer coating over the flexible fibrous material through which the products formed when the compound thermoparticulates can pass. The tape is best made by dissolving the thermoparticulating compound in a solvent, immersing the fibrous material in the solution, evaporating the solvent, and applying the outer coating to the fibrous material. An adhesive backing can be applied to the tape if desired. The tape is placed in an electrical apparatus cooled by a gas stream, in a position exposed to the gas stream. When overheating occurs the tape darkens and emits particles into the gas stream which are detected by a monitor.

REFERENCES:
patent: 2442823 (1948-07-01), Polye
patent: 2889799 (1959-06-01), Korpman
patent: 3807218 (1974-04-01), Carson et al.

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