Patent ID: 6167971
Filing Date: 2001-01-02
Classification: A62C

Abstract:
A fire protection system comprising, in combination: a building having a periphery with a roof situated thereon and a plurality of windows, the roof supported by rafters which are angled downwardly from a ridge to at least one eave thereof, wherein at least one eave extends beyond the periphery of the building a predetermined distance; said roof and said periphery being constructed from a fire retardant material; a reservoir tank comprising a cylindrical tank positioned distant the building above the ground, the reservoir tank adapted to contain a predetermined amount of water; a plurality of underground supply pipes formed of PVC connected at a first end thereof to the reservoir and extending to the building such that the water may flow from the reservoir tank to the building; a plurality of above ground distribution pipes, each above ground distribution pipe formed of PVC with an imperforate metallic covering for protection against UV radiation, the above ground distribution pipes including at least one vertical pipe situated vertically on the periphery of the building with a lower end thereof connected to a second end of the underground pipe and a plurality of horizontal pipes connected to an upper end of the vertical pipe and extending along the length of at least one eave on an underside thereof; a plurality of rafter sprinklers connected to the horizontal pipes of the above ground distribution pipes such that there is one rafter sprinkler for every two rafters, the rafter sprinklers being located between the rafters and having outlet orifices facing upwardly and adapted to spray water towards the rafters on opposite sides thereof upon the supply of water thereto, wherein each rafter sprinkler has a first predetermined breadth of spray dependent on spacing between the rafters; a plurality of window sprinklers connected to the horizontal pipes of the above ground distribution pipes above each of the windows of the building, the window sprinklers each having outlet orifices facing downwardly adapted to spray water on to an associated window upon the supply of water thereto, wherein each window sprinkler has a second predetermined breadth of spray greater than the first predetermined breadth of spray dependent on the width of the windows, the rafter sprinklers and window sprinklers having inlet orifices at a common elevational orientation; a pump adapted to effect the flow of the water from the reservoir tank through the pipes and to the sprinklers upon the receipt of an activation signal; at least one heat sensor situated beneath at least one eave for transmitting a heat detection signal upon a surrounding temperature surpassing a predetermined amount; a reset switch adapted to generate a reset signal upon the depression thereof; and a controller connected to the pump, the heat sensor, and the reset switch for transmitting to the pump an activation signal upon the receipt of a heat detection signal, whereby the controller continues to transmit the activation signal until the receipt of the reset signal.