Preaction sprinkler valve assemblies, related dry sprinkler devices and fire protection sprinkler systems
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United States of America Patent
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Feb 27, 2018
Issued Date -
N/A
app pub date -
Jul 28, 2016
filing date -
Jul 28, 2015
priority date (Note) -
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Abstract
A thermal trigger assembly for remote mechanical actuation of another fire protection system component includes an activation component having a base and a movable member. A bias member biases the movable member from a preactivation to an activated position with respect to the base. A thermally responsive element retains the movable member in the preactivation position until a predetermined thermodynamic condition is reached, when the thermally responsive element loses structural integrity. A flexible connector includes a flexible hollow outer cable housing with one end configured to be stationarily (preferably fixedly) connected with the base. A flexible cable is inside the outer cable housing for sliding movement therein and has one end configured to be stationarily (preferably fixedly) connected with the movable member. The flexible cable is moved with respect to the outer cable housing by movement of the movable member upon loss of structural integrity by the thermally responsive element.
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