PNEUMATIC FIRE DETECTOR
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United States of America Patent
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app pub date -
Jun 2, 2009
filing date -
Sep 7, 2007
priority date (Note) -
Abandoned
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Abstract
A pneumatic fire detector is disclosed having a switch module comprising a manifold operatively connected to a sensor tube, the switch module incorporating respective forming tubes for applying a sufficient pressure first to the outer surface of an installed diaphragm and thereafter to a pre-determined pressure through the manifold to deform the diaphragm outwards and into contact with a respective switch.
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