Temperature warning device by deformation or expansion of a...

Details Temperature warning device by deformation or expansion of a... Temperature warning device by deformation or expansion of a...

2003-10-28

2008-11-11

Hofsass, Jeff (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C337S112000, C356S328000

Reexamination Certificate

active

07450018

ABSTRACT:
Temperature sensor device that allows changes of temperature (14) to be detected, as the materials that form said device (1) are deformed, that consists of a body formed by two valves (2) and a structure (8) provided in the hollow interior (7), so that they join together with the aid of a number of bolts (5), it having been envisaged that in one of the bolts (5) and in the structure (8) electrical terminals (4) are positioned, separated a distance (12) from each other, so that when an increase in temperature (14) takes place, it causes the deformation of the components of the device (1), allowing contact of the electrical terminals on having reached the critical temperature (14), and producing the activation of a warning device (13) with the aid of a conductive medium (10)

REFERENCES:
patent: 4367443 (1983-01-01), Hull et al.
patent: 4504414 (1985-03-01), Folkers et al.
patent: 4504814 (1985-03-01), Roberts et al.
patent: 4645344 (1987-02-01), Thevenon
patent: 5416970 (1995-05-01), Kadlubowski
patent: 0 351 050 (1992-10-01), None
patent: 0 821 468 (2004-03-01), None
patent: 968111 (1964-08-01), None
patent: 55-126918 (1980-10-01), None

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