Patent ID: 6209654
Filing Date: 2001-04-03
Classification: A62C,Y10T

Abstract:
A deluge fire sprinkler system for suppressing fires occurring in an air environment, the air having an atmospheric pressure, the deluge fire sprinkler system comprising:(a) a network of water pipes having an interior volume, a water input port opening the interior volume, and a plurality of water outlet ports further opening the interior volume, the network of water pipes having an internal fluid pressure;(b) means for resisting aspiration of air into the water outlet ports and for permitting emission of water flowing under pressure from the water outlet ports, said means covering the water outlet ports;(c) heat actuatable air aspiration means operatively connected to the water pipe network and adapted to permit air to flow into the interior volume of the water pipe network upon exposure of such network to heat;(d) a valve operatively connected to the water input port;(e) means for lowering the internal fluid pressure of the network of water pipes below that of the atmospheric pressure; and,(f) pressure actuatable valve opening means operatively connected to the valve and adapted to open the valve upon a rise in fluid pressure within the interior volume of the water pipe network.