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US 4,791,993 AGranted
Fire protection system
OwnerJeremiah M. Curraninventor
Life of this patent
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OwnerJeremiah M. Curraninventor
Estimating the term…
Disclosed is an integral fire protection and ceiling structure for use in a building of the kind wherein false ceilings are employed. The fire protection system comprises a rectangular gridwork of pipe sections with four-way cast pipe fittings to which the pipe sections are joined. Each fitting has a downwardly-directed outlet in which a sprinkler head is mounted. The false ceiling structure comprises intersecting support runners forming a gridwork of rectangular frames where the dimensions of the gridwork of the pipe sections are even multiples of the dimensions of the rectangular frames with the intersecting support runners being beneath and in vertical alignment with intersecting pipe sections of the pipe section gridwork. The sprinkler heads extends through the intersections of the support runners. Suspension means suspend the support runners from the grid of conduits.
A building fire protection system comprising a plurality of pipe fittings, each having four equiangularly-disposed inlet openings, the inlet openings being interconnected within the fittings, conduits having end portions adapted to fit within the inlet openings interconnecting the inlet openings of adjacent fittings thereby providing a substantially rectangular grid of conduits and fittings with the fittings positioned at the intersections of perpendicularly-disposed conduits throughout the grid;
An integral fire protection system and ceiling structure for use in an enclosed building comprising a plurality of discrete ceiling tiles, a grid of elongated intersecting support elements for support of the ceiling tiles, a plurality of four-way pipe fittings having laterally-extending intersecting passages, said passages extending through the fittings and defining with the sidewalls of the fittings four equidistantly-spaced inlets, said fittings being positioned above the intersections of the support elements, each said fitting having a downwardly-directed outlet in fluid communication with the passages with at least one downwardly-directed spray orifice extending therethrough, said outlets being located at the intersections of adjacent ceiling support elements, the fittings being interconnected by conduits overlying and in alignment with the ceiling support elements.
Dependencies are inferred from the claim text.