Patent ID: 7363987
Filing Date: 2008-04-29
Classification: A62C,F04B,Y10T

Abstract:
1. A method for converting an existing non-sprinklered multi-floor building to a sprinklered building, said existing building having an existing water delivery pipe for delivery of water to different floors of the building, comprising the steps of: on each of at least two of the floors, installing a ceiling sprinkler pipe with a plurality of sprinklers, and also installing a respective pump whose outlet is connected to said respective sprinkler pipe and whose inlet is connected to the existing water delivery pipe: for each pump providing a respective sensor which automatically activates the pump when at least one of the sprinklers is activated; and a shutoff valve between an outlet of the pump and an inlet of the sprinkler pipe and a test water release valve between the water delivery pipe and the inlet of the pump, and to test operation of an individual floor sprinkler system comprising a respective pump and respective sensor, the test water release valve is opened causing a pressure drop which is sensed resulting in a turn-on of the pump.