Dry sprinkler
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United States of America Patent
Stats
-
Feb 23, 1993
Grant Date -
N/A
app pub date -
Jun 19, 1991
filing date -
Jun 19, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A dry sprinkler for mounting on a piping system in a fire protection installation including an outer tube structure having an inlet end with an inlet opening, an outlet end having an outlet opening, and a tube axis that passes through the inlet opening and along the tube structure, a connecting structure that is mounted for movement along the axis within the tube structure, a thermally responsive component supported by the tube structure at the outlet end and supporting the connecting structure under normal temperature conditions and releasing the connecting structure during abnormal temperature conditions to permit it to move, a seal member that is caused by the connecting structure to seal the inlet opening when the connecting structure is supported by the thermally responsive component, the seal member being constrained to move towards one side of the tube axis when the connecting structure is released in order to provide a relatively large unobstructed flow area to permit passage of foreign matter on the other side of the axis.
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