Fluid handling – Destructible or deformable element controlled – Heat destructible or fusible
Patent
1988-11-10
1989-07-25
Rivell, John
Fluid handling
Destructible or deformable element controlled
Heat destructible or fusible
137 79, 285 64, 52 1, 52232, F16K 1738, E04B 548
Patent
active
048503851
ABSTRACT:
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.
REFERENCES:
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patent: 3904111 (1975-09-01), Petersson
patent: 4072159 (1978-02-01), Kurosawa
patent: 4109423 (1978-08-01), Perrian
patent: 4136707 (1979-01-01), Gaillot et al.
patent: 4221092 (1980-09-01), Johnson
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patent: 4313286 (1982-02-01), Harbeke
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patent: 4467577 (1984-08-01), Licht
patent: 4538389 (1985-09-01), Heinen
patent: 4642956 (1987-02-01), Harbeke
patent: 4724858 (1988-02-01), Cornwall
patent: 4748787 (1988-06-01), Harbeke
patent: 4804160 (1989-02-01), Harbeke
3M--Fire Barrier Restricting Collar RC-1 (2 pgs.) Date unknown.
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