Temperature responsive warning device

Details Temperature responsive warning device Temperature responsive warning device

1981-06-08

1984-05-15

Yasich, Daniel M.

Signals and indicators

Indicators

Temperature responsive or compensating means

60527, 204 1T, 204194, G01K 116, G01K 570

Patent

active

044481470

ABSTRACT:
A warning device for indicating a predetermined temperature level of a solid object includes inner and outer concentric telescoping tubes having outer surfaces of different and contrasting appearances; a heat-conducting device for fixing one of the tubes to the solid object; a temperature-responsive spring element disposed within and abutting each of the tubes, the spring element being made of a material having shape memory properties such that upon an increase in temperature it expands and causes outward telescopic movement of one tube relative to the other tube to thereby expose the outer surface of the inner tube to view.

REFERENCES:
patent: 2640129 (1953-05-01), Starbird
patent: 3194927 (1965-07-01), Place
patent: 3440997 (1968-04-01), Rogen et al.
patent: 3594674 (1971-07-01), Willson
patent: 3832662 (1974-08-01), Haven et al.
patent: 4191053 (1980-03-01), Hart et al.
patent: 4220300 (1980-09-01), Reicher et al.
patent: 4325217 (1982-04-01), Golestaneh

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