Patent ID: 6554077
Filing Date: 2003-04-29
Classification: A62C

Abstract:
A quick response sprinkler arrangement comprising:a sprinkler body with an axial passage for fire extinguishing fluid having an inlet end and an outlet end; an axially movable assembly movable between a sealing position and an open position which includes a deflector extending transversely to the axis of the sprinkler and a spring sealing member engaging a seat on the sprinkler body and a seat on the axially movable assembly for sealing the axial passage in the sealing position and for urging the axially movable assembly away from the sealing position; a support structure at the outlet end of the axial passage having a cylindrical opening containing the deflector in the sealing position of the axially movable assembly; a locking arrangement adjacent to the deflector and normally held in a locking position within the cylindrical opening and having a configuration arranged to conceal the deflector and retain the axially movable assembly in the sealing position; and a temperature sensitive device axially disposed outwardly from the cylindrical opening and from the support structure and the locking arrangement and normally retaining the locking arrangement in the locking position and actuable in response to an elevated temperature condition to release the locking assembly from its locking position and permit the axially movable assembly to move from the sealing position to the open position, thereby permitting fire extinguishing fluid to emerge from the outer end of the passage and be distributed by the deflector.