초록 ▼

A fire-fighting tool having a perforated pointed forward end is designed to automatically maintain its water-emitting portions in place within the interior of a burning building, without manual attention thereto, after the wall or roof of such a building have been pierced with same. Rearwardly direc

A fire-fighting tool having a perforated pointed forward end is designed to automatically maintain its water-emitting portions in place within the interior of a burning building, without manual attention thereto, after the wall or roof of such a building have been pierced with same. Rearwardly directed ports are carefully arranged so as to produce non-intersecting streams of water. These ports emit water under high pressure when the pointed heavy tool is attached to a fire hose and serve to extinguish the fire at the inner surface of the outside wall, and at the same time prevent the tool from being ejected rearwardly, which would be the normal result of the passage of water under high pressure from the fire hose through such a tool. A cement block or frame wall can be pierced with the tool while manned by a single fire-fighter, who may retreat from danger while the tool, because of its construction, remains in place to effectively extinguish the fire, because the rearward urging normally experienced by such a tool has been completely eliminated.

대표청구항 ▼

A portable fire-fighting tool, comprising: (a) an elongated section of steel pipe having forward and rearward end portions and having a hollow interior and a hollow generally conically-shaped forward end portion in fluid communication with said interior; (b) a pointed, steel, piercing element carrie

A portable fire-fighting tool, comprising: (a) an elongated section of steel pipe having forward and rearward end portions and having a hollow interior and a hollow generally conically-shaped forward end portion in fluid communication with said interior; (b) a pointed, steel, piercing element carried by said forward end portion and extending forwardly therefrom, said piercing element being constructed and arranged to pierce the wall or roof of a burning building when rammed forcefully thereagainst to thereby extend, with said forward end portion, into the interior of such a building; (c) said hollow forward end portion having wall structure with a plurality of openings extending therethrough and bringing the interior thereof into fluid communication with the interior of such a building when the wall or roof of the latter is so pierced by said piercing element and said forward end portion of said pipe; (d) a tubular connector coupling mounted on intermediate portions of said pipe and connected in fluid communication with the hollow interior of said pipe, said connector coupling being constructed and arranged to be connected in fluid communication with a fire hose to receive water under pressure therefrom; and said openings of said hollow end portion being constructed and arranged to maintain said forward end portion within the interior of such a building in wall-piercing position after it has pierced such a wall and extended into the interior of such a building, whereby a fire within the interior of the building will be quickly extinguished by a spray of water emanated from said openings of said hollow end portion when pressurized water is admitted into the fire hose, and toward that end; (f) some of said openings being directed rearwardly and arranged to produce streams of water emanating therethrough in non-intersecting relation to streams of water emanating from all other of said openings in said wall structure.