Patent ID: 6450265
Filing Date: 2002-09-17
Classification: A62C

Abstract:
An early suppression fast response sprinkler arrangement comprising:a sprinkler body having an orifice providing a K factor of at least 16 and two frame arms which extend forwardly from the sprinkler body on opposite sides of the orifice and meet at a junction on the sprinkler axis; a deflector supported by the frame arms in spaced relation to the orifice in the sprinkler body at a location between the junction of the frame arms of the orifice to deflect water emerging from the orifice; a plurality of angularly distributed radial slots in the deflector in which each slot has sides which diverge at an angle in the radially outward direction of the slot; and a bullet-shaped projecting member centrally positioned on the deflector and facing the orifice in the sprinkler body and having an outer surface consisting of a surface of revolution about the sprinkler axis extending entirely around the projecting member which is convexly curved continuously from a tip on the axis of the sprinkler body outwardly and downwardly toward the deflector and a cylindrical surface adjacent to the deflector to guide water striking the bullet-shaped projecting member toward the inner ends of the slots in the deflector.