Temperature sensitive reclosure indicator

Details Temperature sensitive reclosure indicator Temperature sensitive reclosure indicator

1983-10-28

1985-09-10

Frankfort, Charles

Signals and indicators

Indicators

Temperature responsive or compensating means

116216, 126388, 292DIG66, G01K 102

Patent

active

045399298

ABSTRACT:
A device for indicating whether a container has been both exposed to a critical temperature and not subsequently opened which includes a housing, a temperature-sensitive member which assumes a first position and a second position within the housing, and a rigid member connected to the temperature sensitive member which moves into view when the temperature sensitive member assumes its second position upon exposure to a critical temperature, and moves out of view when the container is opened.

REFERENCES:
patent: 2630112 (1953-03-01), Zide
patent: 3526891 (1970-09-01), Pope
patent: 3715699 (1973-02-01), Hire
patent: 4165359 (1979-08-01), Thomas et al.
patent: 4457327 (1984-07-01), Pepper

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