| 20110048746 | AUTOMATIC REVERSIBLE TEMPERATURE RESPONSIVE VALVE AND FIRE SPRINKLER - A fire sprinkler including a generally tubular body having inlet and outlet ends is disclosed. The body defines a fluid flow passage extending between the inlet and the outlet such that the outlet is in fluid flow communication with the inlet. A magnetized member is disposed within the fluid flow passage and is movable between a first position wherein fluid flow communication between the outlet and the inlet is blocked and a second position wherein fluid flow communication between the outlet and the inlet is open. A temperature sensitive magnetic member is coupled to the body and has sufficient magnetic properties to attract the magnetized member below a predetermined temperature, thereby maintaining the magnetized member in the first position. The temperature sensitive magnetic member loses a sufficient percentage of its magnetic properties at and above the predetermined temperature, thereby allowing the magnetized member to move to the second position. | 03-03-2011 |
