Fire sprinkler with adjustable deflector

• Main Author: SHEA, SR.; RAYMOND E
• Format: Patent
• Language: English
• Published: 06.08.1991
• Subjects: FIRE-FIGHTING; HUMAN NECESSITIES; LIFE-SAVING

A fire sprinkler including a body defining an inlet adapted for connection to a supply of fire extinguishing fluid and an outlet adapted for placement in a zone to be sprinkled; a valve retained by the body and movable between a closed position providing a fluid tight seal between the inlet and the outlet and an open position allowing fluid flow therebetween; an actuator for moving the valve from the closed position to the open position in response to a predetermined condition; and a deflector disposed to disperse into the zone fluid discharged from the outlet; the deflector comprising a plurality of deflector elements each adapted to deflect fluid discharged from the outlet. Also included is a coupling between the deflector elements and adapted to permit adjustment in the relative positions of the deflector elements so as to selectively change the pattern in which fluid discharged from the outlet is dispersed into the zone. Selective adjustment of the deflector elements provides dispersion patterns that conform to particular portions of the zone.