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

Claim 12:
13. An upright sprinkler, comprising:
a body having an inlet, an outlet, an internal passageway extending between the inlet and the outlet along a sprinkler axis;
a pair of frame arms extending from the body;
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 frame arms and spaced from the outlet, the deflector comprising:
a curved first deflecting surface having a center of curvature on the sprinkler axis and a first radius from the center of curvature to the first deflecting surface; and
a plurality of second deflecting surfaces formed by a plurality of respective grooves extending radially outward from the first deflecting surface, each groove of the plurality of respective grooves having a second radius from the center of curvature to the respective second deflecting surface, the second radius greater than the first radius.