Fire-proof device for a tube of fusible material which extends t

Details Fire-proof device for a tube of fusible material which extends t Fire-proof device for a tube of fusible material which extends t

1977-04-05

1978-08-29

Perham, Alfred C.

Static structures (e.g., buildings)

Controlled by condition responsive means

49 1, 52232, 137 77, 137360, 251 7, E04H 900, F16K 1300

Patent

active

041094239

ABSTRACT:
The device comprises a case of a material non-deformable under the effect of heat and mounted on the wall around at least a part of the tube. A mass of material capable of swelling under the effect of heat is enclosed in the case. An element of a material which is substantially non-fusible at temperatures which are developed in the course of a fire has a part which is planar and perpendicular to a radial direction relative to the tube and is movable and slidable in said radial direction in the case. The element normally bears on the outer surface of the tube and the mass of swelling material is disposed on the opposite side of the element to the tube.

REFERENCES:
patent: 3255559 (1966-06-01), Gaeth et al.
patent: 3426491 (1969-02-01), Gaeth et al.
patent: 3462890 (1969-08-01), Blumenkranz et al.
patent: 3678634 (1972-07-01), Wise et al.
patent: 3964214 (1976-06-01), Wendt

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