Patent ID: 6221263
Filing Date: 2001-04-24
Classification: A62C,C02F

Abstract:
A device for automatically treating a fluid as it is intermittently introduced from a fluid source into a substantially stagnant and pressurized fire protection sprinkler system so as to prevent or control deposition and microbiologically-influenced corrosion caused by microbes present in the sprinkler system and introduced with the fluid into the sprinkler system by a means coupled to the sprinkler system for delivering fluid thereto from the fluid source, the fluid delivering means being operable to deliver a first portion of fluid to fill the sprinkler system and including a means operable to deliver a second portion of fluid to the sprinkler system if the pressure therein drops below a predetermined pressure level, the device comprising:means for storing at least one chemical capable of killing the microbes;means for detecting substantially any introduction of the fluid by the fluid delivering means into the sprinkler system from the fluid source; andmeans for delivering the at least one chemical to the sprinkler system, the chemical delivering means being coupled to the detecting means so that the detecting means activates the chemical delivering means in response to the introduction of substantially any fluid into the sprinkler system from the fluid delivering means so as to initiate delivery of the at least one chemical to the sprinkler system along with the first and second portions of fluid, and so that the detecting means deactivates the chemical delivering means in response to cessation of the introduction of the first or second portions of fluid into the sprinkler system so as to cease delivery of the at least one chemical to the sprinkler system.