Patent ID: 11931751
Assignee: nan
Field: Environmental technology (Chemistry)
Classification: CPC B  A | IPC A  B

Claim 0:
1. A fire protection sprinkler, comprising:
a body having an inlet, an outlet, and an internal passageway extending between the inlet and the outlet along a sprinkler axis;
a sealing assembly in the outlet;
a thermal trigger coupled with the sealing assembly to maintain the sealing assembly in the outlet; and
a deflector coupled with the body and spaced from the outlet, the deflector comprising:
a peripheral region comprising a plurality of tines;
a central region coupled with the body and closer to the sprinkler axis than the peripheral region; and
an intermediate region between the peripheral and central regions, the intermediate region including a curved primary deflecting surface and a plurality of secondary deflecting surfaces between the primary deflecting surface and the central region, the primary deflecting surface having a center of curvature along the sprinkler axis, and each secondary deflecting surface of the plurality of secondary deflecting surfaces is formed by a respective groove extending radially outward from the primary deflecting surface relative to the center of curvature.