Patent ID: 11872421
Assignee: VICTAULIC COMPANY
Field: Environmental technology (Chemistry)
Classification: CPC A | IPC A

Claim 0:
1. A fire protection system for a combustible concealed space, wherein the combustible concealed space comprises a roof having a generally pitched roof section and a hip at one end of the generally pitched roof section, wherein the hip has an apex that substantially coincides with an end of a ridgeline of the generally pitched roof section, and from which the hip spreads downwardly and outwardly toward sides of the pitched roof section and toward an eave, forming an angle with a generally horizontal floor of the combustible concealed space, the angle being the slope of the hip, the hip comprising an upper hip comprised of at least two stepdown trusses, disposed in a direction perpendicular to the slope of the hip and spaced in a direction parallel to the slope of the hip, and a lower hip comprised of a multiplicity of jack trusses, disposed in a direction parallel to the slope of the hip and spaced in a direction perpendicular to the slope of the hip, the fire protection system including:
an upper hip fire protection system, comprising:
a first row of sprinklers comprising at least one sprinkler, disposed substantially at the apex of the hip, wherein, in a case in which the first row of sprinklers contains two or more sprinklers, the two or more sprinklers are spaced apart from each other in the direction perpendicular to the slope of the hip;
a second row of sprinklers comprising at least two sprinklers, disposed at a first spacing downslope from the first row of sprinklers, in the direction parallel to the slope of the hip, wherein the at least two sprinklers are spaced apart from each other in the direction perpendicular to the slope of the hip; and
a third row of sprinklers comprising at least two sprinklers, disposed at a second spacing downslope from the second row of sprinklers, wherein the at least two sprinklers of the third row of sprinklers are spaced apart from each other in the direction perpendicular to the slope of the hip;
wherein a maximum spacing between any two of the at least two sprinklers in the second row of sprinklers is greater than a maximum value for the first spacing and a maximum spacing between any two of the sprinklers in the second row of sprinklers and a maximum spacing between any two of the sprinklers in the third row of sprinklers is greater than a maximum spacing value for the first spacing and for the second spacing.