Device for detecting the exceeding of a temperature threshold

Details Device for detecting the exceeding of a temperature threshold Device for detecting the exceeding of a temperature threshold

G - Physics

08

B

116/67

G08B 19/00 (2006.01) F25D 29/00 (2006.01) G01K 11/06 (2006.01)

Patent

CA 2013650

DESCRIPTIVE ABSTRACT Device for detecting the exceeding of a temperature threshold incorporating a first mobile part (5) in a sealed chamber (4) containing material melting at the temperature of the threshold and a second mobile part (8) outside the chamber. In the armed position, the two parts exert forces on one another tending to move them apart, but the first part is blocked by the solidified material and the second is immobilized by the combin- ation of shapes (12, 13) in case (9). The melting of the material frees the first part, whose displacement frees the second part, which then operates an alarm system (18). This displacement leads to the return of the first part to the initial position, which permits rearming when the material has resolidifed. Fig. 1 SP 5488 GP

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