Fast response sprinkler head and fire extinguishing system

  • US 6,585,054 B1
  • Filed: 05/26/2000
  • Issued: 07/01/2003
  • Est. Priority Date: 05/28/1999
  • Status: Expired due to Term
First Claim
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1. An upright early suppression fast response (ESFR) sprinkler head for dispensing fire extinguishing fluid in the event of a fire, comprising:

  • a sprinkler body configured for attachment to a fire extinguishing fluid supply line, said sprinkler body having an orifice in fluid communication with the fire extinguishing fluid supply line, said orifice having an outlet, said sprinkler body having a top region, said sprinkler body having a K factor value of at least approximately 13.5; and

    a sealing assembly positioned within said outlet of said orifice;

    a fusible trigger assembly coupled to said sprinkler body and said sealing assembly, said fusible trigger assembly having a fusing temperature between approximately 155°

    F. and 175°

    F.; and

    a deflector coupled to said sprinkler body and positioned a preselected distance above said top region of said sprinkler body wherein the extinguishing fluid flows upwardly from said orifice when said sealing assembly is released by said fusible trigger assembly from said outlet, said deflector including a plurality of through-holes wherein said deflector generates a spray distribution through said through-holes radially outward from said deflector whereby said defector is configured to generate a spray distribution pattern of fire extinguishing fluid over an area to be protected.

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