# US 8,783,373 B2 · Extended coverge horizontal sidewall sprinkler > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,783,373 B2 - Document ID: US8783373B2 - Status: Granted - Kind: B2 - Application number: 12/956,985 - Filed: 2010-11-30 - Published: 2011-06-02 - Granted: 2014-07-22 - Earliest claimed: 2006-04-21 - Assignees: The Reliable Automatic Sprinkler Co., Inc. - Applicants: Oliver S. Pahila; Ricardo Goldberg - Inventors: Oliver S. Pahila; Ricardo Goldberg - Web page: https://patentgrep.com/patent/US8783373B2 ## CPC - A62C 31/02: Nozzles specially adapted for fire-extinguishing - A62C 35/68: Details, e.g. of pipes or valve systems (valves in general F16K) - A62C 37/11: heat-sensitive - A62C: FIRE-FIGHTING (fire-extinguishing compositions, use of chemical substances in extinguishing fires A62D1/00; spraying, applying liquids or other fluent materials to surfaces in general B05; alarm arrangements G08B, e.g. fire alarms actuated by smoke or gases G08B17/10) ## Abstract A sidewall fire protection sprinkler, including a deflector having a central portion curved about a first, horizontal axis that is transverse to a second axis that extends in an output direction of the sprinkler. End portions extend outwardly from the central portion along the first axis, the end portions each respectively including an upper part and a lower part separated by a gap which defines an elongated notch extending between the upper part and the lower part at an innermost portion of the gap adjacent to the central portion. The gap is formed extending outwardly from the central portion substantially along the first axis. Planar portions extend respectively from top edges of the upper parts of the end portions. The planar portions extend in the output direction. The sprinkler can provide extended coverage ordinary hazard protection. ## Claims ### Claim 1 A sidewall fire protection sprinkler, comprising: a body defining an input passage having an input and an output orifice sealed with a seal cap; and a deflector attached to the body, the deflector comprising: a central portion curved about a first, horizontal axis that is transverse to a second axis that extends in an output direction of the sprinkler; end portions extending outwardly from the central portion along the first axis, the end portions each respectively including an upper part and a lower part separated by a gap which defines an elongated notch extending between the upper part and the lower part at an innermost portion of the gap adjacent to the central portion, wherein the gap is formed extending outwardly from the central portion substantially along the first axis; and planar portions extending respectively from top edges of the upper parts of the end portions, wherein the planar portions extend in the output direction, wherein the sprinkler has a nominal K-factor in a range from about 2.8 to about 16. ### Claim 2 (depends on 1) The sidewall fire protection sprinkler of claim 1, wherein the planar portions are angled downward with respect to the first axis. ### Claim 3 (depends on 1) The sidewall fire protection sprinkler of claim 1, wherein the planar portions are angled downward with respect to the second axis. ### Claim 4 (depends on 1) The sidewall fire protection sprinkler of claim 1, wherein a width of the planar portions along the first axis is substantially less than a width of the end portions along the first axis. ### Claim 5 (depends on 1) The sidewall fire protection sprinkler of claim 1, wherein the planar portions extend in the output direction beyond the top edges between the planar portions and the upper parts. ### Claim 6 (depends on 1) The sidewall fire protection sprinkler of claim 1, wherein the end portions are curved about the-first axis with a radius increasing in a direction away from the central portion. ### Claim 7 (depends on 1) The sidewall fire protection sprinkler of claim 1, wherein the lower parts of the end portions have an open-ended slot that is angled with respect to the first axis. ### Claim 8 (depends on 1) The side wall fire protection sprinkler of claim 1, wherein the nominal K-factor is greater than about 5.6. ### Claim 9 (depends on 8) The sidewall fire protection sprinkler of claim 8, wherein the nominal K-factor of the sprinkler is one of 8, 11.2, and 14. ### Claim 10 (depends on 8) The sidewall fire protection sprinkler of claim 8, wherein, the nominal K-factor of the sprinkler is 14 and for a coverage area of 28 ft along a wall by 14 ft forward throw, the sprinkler requires a system pressure of less than about 33 psi and flow rate of less than about 80 gpm. ### Claim 11 (depends on 8) The sidewall fire protection sprinkler of claim 8, wherein, the nominal K-factor of the sprinkler is 14 and for a coverage area of 28 ft along a wall by 16 ft forward throw, the sprinkler requires a system pressure of less than about 42 psi and flow rate of less than about 90 gpm. ### Claim 12 (depends on 8) The sidewall fire protection sprinkler of claim 8, wherein, the nominal K-factor of the sprinkler is 14 and for a coverage area of 28 ft along a wall by 18 ft forward throw, the sprinkler requires a system pressure of less than about 54 psi and flow rate of less than about 102 gpm. ### Claim 13 (depends on 8) The sidewall fire protection sprinkler of claim 8, wherein, the nominal K-factor of the sprinkler is 14 and for a coverage area of 28 ft along a wall by 20 ft forward throw, the sprinkler requires a system pressure of less than about 64 psi and flow rate of less than about 112 gpm. ### Claim 14 (depends on 1) The sidewall fire protection sprinkler of claim 1, wherein the notch is formed in both the upper and lower part. ### Claim 15 (depends on 1) The sidewall fire protection sprinkler of claim 1, wherein the gap extends in a direction that is substantially orthogonal to the notch. ### Claim 16 (depends on 1) The sidewall fire protection sprinkler of claim 1, wherein an open area of the notch is coextensive with that of the gap. ### Claim 17 (depends on 15) The sidewall fire protection sprinkler of claim 15, wherein the gap is defined by a tab extending downwardly from the upper part. ### Claim 18 A recessed sidewall fire protection sprinkler comprising: a body defining an input passage having an input and an output orifice sealed with a seal cap; a deflector attached to the body, the deflector comprising: a central portion curved about a first, horizontal axis that is transverse to a second axis that extends in an output direction of the sprinkler, end portions extending outwardly from the central portion along the first axis, the end portions each respectively including an upper part and a lower part separated by a gap which defines an elongated notch extending between the upper part and the lower part at an innermost portion of the gap adjacent to the central portion, wherein the gap is formed extending outwardly from the central portion substantially along the first axis, and planar portions extending respectively from top edges of the upper parts of the end portions, wherein the planar portions extend in the output direction; and an escutcheon attached to the body. ### Claim 19 (depends on 18) The recessed sidewall fire protection sprinkler according to claim 18, wherein the nominal K-factor of the sprinkler is in the range from about 2.8 to about 16. ### Claim 20 (depends on 19) The recessed sidewall fire protection sprinkler of claim 19, wherein the nominal K-factor of the sprinkler is one of 8, 11.2, and 14. ### Claim 21 (depends on 18) The recessed sidewall fire protection sprinkler of claim 18, wherein, the nominal K-factor of the sprinkler is 14 and for a coverage area of 28 ft along a wall by 14 ft forward throw, the sprinkler requires a system pressure of less than about 33 psi and flow rate of less than about 80 gpm. ### Claim 22 (depends on 18) The recessed sidewall fire protection sprinkler of claim 18, wherein, the nominal K-factor of the sprinkler is 14 and for a coverage area of 28 ft along a wall by 16 ft forward throw, the sprinkler requires a system pressure of less than about 42 psi and flow rate of less than about 90 gpm. ### Claim 23 (depends on 18) The recessed sidewall fire protection sprinkler of claim 18, wherein, the nominal K-factor of the sprinkler is 14 and for a coverage area of 28 ft along a wall by 18 ft forward throw, the sprinkler requires a system pressure of less than about 54 psi and flow rate of less than about 102 gpm. ### Claim 24 (depends on 18) The recessed sidewall fire protection sprinkler of claim 18, wherein, the nominal K-factor of the sprinkler is 14 and for a coverage area of 28 ft along a wall by 20 ft forward throw, the sprinkler requires a system pressure of less than about 64 psi and flow rate of less than about 112 gpm. ### Claim 25 A dry sidewall fire protection sprinkler comprising: a body defining an input passage having an input and an output orifice sealed with a seal cap; a deflector attached to the body, the deflector comprising: a central portion curved about a first, horizontal axis that is transverse to a second axis that extends in an output direction of the sprinkler, end portions extending outwardly from the central portion along the first axis, the end portions each respectively including an upper part and a lower part separated by a gap which defines an elongated notch extending between the upper part and the lower part at an innermost portion of the gap adjacent to the central portion, wherein the gap is formed extending outwardly from the central portion substantially along the first axis, and planar portions extending respectively from top edges of the upper parts of the end portions, wherein the planar portions extend in the output direction; an escutcheon attached to the body; and a cover attached to the escutcheon to conceal the deflector and the body. ### Claim 26 (depends on 25) The dry sidewall fire protection sprinkler according to claim 25, wherein the nominal K-factor of the sprinkler is in the range from about 2.8 to about 16. ### Claim 27 (depends on 25) The dry sidewall fire protection sprinkler of claim 25, wherein the nominal K-factor of the sprinkler is one of 8, 11.2, and 14. ### Claim 28 (depends on 26) The dry sidewall fire protection sprinkler of claim 26, wherein the nominal K-factor of the sprinkler is 14, and for a coverage area of 28 ft along a wall by 14 ft forward throw, the sprinkler requires a system pressure of less than about 33 psi and flow rate of less than about 80 gpm. ### Claim 29 (depends on 26) The dry sidewall fire protection sprinkler of claim 26, wherein the nominal K-factor of the sprinkler is 14, and for a coverage area of 28 ft along a wall by 16 ft forward throw, the sprinkler requires a system pressure of less than about 42 psi and flow rate of less than about 90 gpm. ### Claim 30 (depends on 26) The dry sidewall fire protection sprinkler of claim 26, wherein the nominal K-factor of the sprinkler is 14, and for a coverage area of 28 ft along a wall by 18 ft forward throw, the sprinkler requires a system pressure of less than about 54 psi and flow rate of less than about 102 gpm. ### Claim 31 (depends on 26) The dry sidewall fire protection sprinkler of claim 26, wherein the nominal K-factor of the sprinkler is 14, and for a coverage area of 28 ft along a wall by 20 ft forward throw, the sprinkler requires a system pressure of less than about 64 psi and flow rate of less than about 112 gpm.