Fire extinguishers – Sprinkler heads
Reexamination Certificate
2008-04-08
2008-04-08
Hwu, David (Department: 3752)
Fire extinguishers
Sprinkler heads
C169S040000, C169S042000, C169S016000, C169S019000, C169S038000, C169S039000, C169S041000
Reexamination Certificate
active
07353882
ABSTRACT:
A horizontal sidewall fire protection sprinkler is provided, including a deflector having a vertical face, transverse to the fluid flow from the output orifice, and a horizontal shelf positioned above and perpendicular to the vertical face. A portion of the horizontal shelf extends in the fluid flow direction by a first length, with respect to the vertical face, and this first length is less than about half of a total length of the horizontal shelf in the fluid flow direction. The sprinkler is installed in a support cup having a raised mounting platform configured to receive the sprinkler body and a cylindrical outer surface, with a front edge in a fluid flow direction, and a back edge. The mounting platform of the support cup is closer to the front edge of the support cup in an axial direction thereof than to the back edge.
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U.S. Appl. No. 11/408,369, filed Apr. 21, 2006.
“Series TY-FRB—5.6 and 8.0 K-Factor Extended Coverage Horizontal Sidewall Sprinklers Quick & Standard Response (Light Hazard).” Tyco Fire Products, Lansdale, PA, Jan. 2003.
“Series TY-L—5.6 K-Factor Horizontal Sidewall Sprinklers Standard Response, Standard Coverage,” Tyco Fire Products, Lansdale, PA, Jan. 2003.
“Model SW-20 and SW-24—11.2 K-Factor Extended Coverage Ordinary Hazard Horizontal Sidewall Sprinklers (Standard Response).” Tyco Fire Products, Lansdale, PA, Apr. 2003.
“Model CHEC—8.0 K-Factor Concealed Horizontal Extended Coverage Quick Response Light Hazard, Sidewall Sprinklers.” Tyco Fire Products, Lansdale, PA, Apr. 2004.
“Series LFII Residential Horizontal Sidewall Sprinklers 4.2 K-Factor.” Tyco Fire Products, Lansdale, PA, Apr. 2004.
http://www.victaulic.com/cms—system/PrintPage.asp?site—id=1&page—id=301.
http://www.fergusonfire.com/pdfs/Sec10.pdf.
Fitzpatrick ,Cella, Harper & Scinto
Hwu David
The Reliable Automatic Sprinkler Co. Inc.
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