Static structures (e.g. – buildings) – Controlled by condition responsive means
Patent
1988-09-14
1989-07-18
Scherbel, David A.
Static structures (e.g., buildings)
Controlled by condition responsive means
52232, 52745, 137 75, F16K 1300
Patent
active
048480436
ABSTRACT:
An under-floor fire-stop coupling and method of construction involves a pipe coupling assembly (10) in which an elongated tubularly-shaped main body (14) has a rigidly coupled outwardly directed mainbody flange (36) to which a fire-stop metallic band (22) having intumescent material (24) therein is mounted. The metallic band includes tabs (34) at the end adjacent to the main-body flange. The main body defines an anchor indentation (46) in an outer surface above the main-body flange. The pipe coupling assembly is mounted to a floor (40) by preparing a hole (66) through the floor slightly larger than the main body, extending the main body through the hole from below the floor until the main-body flange contacts a bottom surface of the floor, and extending fasteners through the metallic band tab and the mainbody flange into the bottom of the floor. Thereafter, in order to make the floor fire proof, concrete is poured into a space left between the main-body and the hole in the floor and this concrete hardens in the anchoring indentation to hold the pipe coupling assembly in the hole.
REFERENCES:
patent: 4109423 (1978-08-01), Perrain
patent: 4136707 (1979-01-01), Gaillot et al.
patent: 4221092 (1980-09-01), Johnson
patent: 4307546 (1981-12-01), Dolder
patent: 4538389 (1985-09-01), Heinen
patent: 4642956 (1987-02-01), Harbeke
patent: 4669759 (1987-06-01), Harbeke
3M Publication (Fire Barrier Restricting Collar RC-1).
Dennison Caroline D.
Scherbel David A.
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