초록 ▼

A fire-stop pipe coupling adaptor (10) comprises a pipe coupling (12) having an intumescent fire stop collar (14) in a metallic band (15) wrapped to form a cylinder (16) thereabout, with the metallic band having outwardly-directed radial tabs (18) at a first cylinder end (19) for attaching the metal

A fire-stop pipe coupling adaptor (10) comprises a pipe coupling (12) having an intumescent fire stop collar (14) in a metallic band (15) wrapped to form a cylinder (16) thereabout, with the metallic band having outwardly-directed radial tabs (18) at a first cylinder end (19) for attaching the metallic band to a partition (40). The pipe coupling of the adaptor has a male coupling member (46) at a first end thereof for extending into a female end (56) of a cast-in coupling (54) to be attached thereto, thereby allowing an end of the cast-in coupling to be positioned immediately adjacent to the intumescent fire stop collar and the metallic band tabs.

대표청구항 ▼

A fire-stop pipe coupling adaptor comprising: a pipe coupling having an elongated tubularly-shaped main body with first and second ends, said elongated tubularly-shaped main body having an inner surface and an outer surface, said elongated tubularly-shaped main body including first and second coupli

A fire-stop pipe coupling adaptor comprising: a pipe coupling having an elongated tubularly-shaped main body with first and second ends, said elongated tubularly-shaped main body having an inner surface and an outer surface, said elongated tubularly-shaped main body including first and second coupling means respectively at said first and second ends for respectively coupling said first and second ends to first and second pipes separate from said pipe coupling; an intumescent fire-stop collar wrapped about and attached to the outer surface of said tubularlyshaped main body, said intumescent collar being constructed of a material which expands when it gets hot to close off the inner surface of said tubularlyshaped main body; a closed tubularly-shape-d metallic band wrapped about and attached to a circumferential periphery of said intumescent collar; and a metallic-band tab attached to a first end of said tubular band adjacent said first end of said elongated tubularly-shaped main body and extending radially outwardly therefrom for receiving attaching fasteners for attaching said metallic band to a partition; wherein said first coupling means is a short male tube for extending int-o an end of a female coupling of said first pipe but allowing the end of said first pipe to be positioned immediately adjacent said intumescent fire-stop collar and-said metallic band tab when said first coupling means is coupled to said first pipe; whereby said first-stop pipe coupling can be coupled to said female coupling of said first pipe when said first pipe is embedded in a partition by inserting the first coupling means into said female coupling and fastening said metallic-band tab to an outer surface of said partition, thereby allowing said second pipe to be attached to said second coupling means and creating a fire stop at the partition in the pipe string thereby created.