Fire-retardant fluid coupling assembly and method

Details Fire-retardant fluid coupling assembly and method Fire-retardant fluid coupling assembly and method

1989-07-06

1990-04-17

Gorski, Joseph M.

Metal working

Method of mechanical manufacture

Assembling or joining

295251, 52232, 52745, E04C 200

Patent

active

049168002

ABSTRACT:
A pipe coupling assembly (10, 46, 64) and method of manufacturing the same involves the use of a pipe coupling (12, 50, 66) with an intumescent collar (14, 68) and a metallic band (16, 56, 70) wrapped thereabout at one end thereof. The metallic band has overlapping ends (36, 38) which are held together by elongated fasteners (18, 60) passing through overlapping portions and into the intumescent wrap. The pipe coupling assembly including a tubularly-shaped main body, an intumescent collar, and a metallic band are assembled as a unit in a factory to be later placed in a concrete form to have concrete poured thereabout. A heat receiving edge of the metallic band receives heat from a fire in a space below a barrier in which the pipe coupling assembly is embedded and conducts it to the outer periphery of the intumescent collar.

REFERENCES:
patent: 4221092 (1980-09-01), Johnson
patent: 4467577 (1984-08-01), Licht
patent: 4608807 (1986-09-01), Skripalle
patent: 4642956 (1987-02-01), Harbeke
patent: 4748787 (1988-06-01), Harbeke
3M--Publication--Fire Barrier Restricting Collar RC.

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