Patent ID: 9539451
Date: 2017-01-10
CPC Classifications: A62C,B05B

Claim:
1. A fire sprinkler valve trigger, comprising: a) a body with a longitudinal axis, the body being an enclosed metal capsule with a hollow interior void of material and having an annular cross-sectional shape taken transverse to the longitudinal axis; b) the body being segmented into opposite segments by a cut in the body, the opposite segments having opposing annular faces; c) the opposite segments being joined together defining a joint between the opposite segments; d) a fusible ring of fusible material disposed in the joint between the opposing annular faces of the opposite segments and joining the opposite segments together, and defining a failure point in the body between the opposite segments; and e) the fusible material having a melting temperature less than a melting, temperature of the opposite segments.