Patent ID: 11925826
Assignee: TYCO FIRE PRODUCTS LP
Field: Environmental technology (Chemistry)
Classification: CPC A  Y | IPC A

Claim 0:
1. A sprinkler, comprising:
an inlet fitting comprising a passageway extending from a first inlet end to a second inlet end, an outer surface of the inlet fitting defines a groove between the first inlet end and the second inlet end and a tool engagement portion at the second inlet end;
the tool engagement portion having a lesser outer diameter than a body portion of the inlet fitting, the body portion between the groove and the tool engagement portion;
a seal assembly that seals the passageway, the seal assembly comprising a conical portion and a spring seal between the conical portion and an inner surface of the inlet fitting;
an outlet frame comprising an outlet, a deflector, and at least one frame arm extending from the outlet to the deflector, a length from the first inlet end to the deflector is greater than or equal to 9 inches and less than or equal to 48 inches;
a thermal trigger between the outlet and the deflector, the thermal trigger comprising a solder link coupled with a strut and a lever, the thermal trigger having a temperature rating of a nominal value of 135, 155, 165, 175, 200, 214 or 286 degrees Fahrenheit plus or minus 20 percent of the nominal value;
an inner tube coupled with the seal assembly and extending from the seal assembly towards the outlet, the inner tube moves to unseal the seal assembly responsive to the operation of the thermal trigger; and
a casing tube extending from a first tube end coupled with the second inlet end to a second tube end coupled with the outlet frame.