Fire-barriers

Details Fire-barriers Fire-barriers

1983-03-22

1985-04-09

Marcus, Stephen

Pipes and tubular conduits

Flexible

Corrugated

138122, 138124, 138127, 138134, 138137, F16L 1100

Patent

active

045095590

ABSTRACT:
A fire-barrier comprises a composite of three types of fire-retardant materials operable sequentially to combat an increase in temperature, e.g. as occurs on outbreak of a fire, by different methods. A preferred combination of materials is an outer layer of heat reflective material, an inner layer of thermally intumescent material and an intermediate layer of endothermal material between the inner and outer layers.

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patent: 3540488 (1970-11-01), Voorhees
patent: 4175631 (1979-11-01), Ishii et al.
patent: 4190088 (1980-02-01), Lalikos et al.
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patent: 4275769 (1981-06-01), Cooke
patent: 4307756 (1981-12-01), Voigt et al.
patent: 4310585 (1982-01-01), Shannon
patent: 4319940 (1982-03-01), Arroyo et al.
patent: 4324835 (1982-04-01), Keen
patent: 4363739 (1982-12-01), Okamura et al.
patent: 4387311 (1983-06-01), Kobayashi et al.

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