Patent ID: 11892110
Assignee: THE RELIABLE AUTOMATIC SPRINKLER CO. INC.
Field: Environmental technology (Chemistry)
Classification: CPC F  A  E | IPC A  E  F

Claim 16:
17. A fire protection sprinkler having a push-in connection for being connected to a fluid supply conduit, the fluid supply conduit having an outlet, the outlet having an internal bore with an internal circumferential groove, the fire protection sprinkler comprising:
a sprinkler frame having an input end and an output end, and a plurality of grooves at the input end;
a frangible element designed to fail at a predetermined temperature so that fluid flows from the fluid supply conduit to the output end of the sprinkler frame;
a sealing cap covering the frangible element;
at least one sealing gasket, each of the at least one sealing gasket being located at least partially within a corresponding one of the plurality of grooves in the sprinkler frame and each of the at least one sealing gasket being a notched gasket having an inner peripheral surface, an outer peripheral surface, and a notch; and
a retainer also at least partially located within a corresponding one of the grooves in the sprinkler frame, the retainer connecting the fire protection sprinkler to the internal circumferential groove of the internal bore of the outlet of the fluid supply conduit when the fire protection sprinkler is connected to the fluid supply conduit,
wherein, when the fire protection sprinkler is inserted into the fluid supply conduit so as to be connected to the fluid supply conduit, the at least one sealing gasket seals against the internal bore of the outlet of the fluid supply conduit.