Pipes and tubular conduits – Combined – With hose protector
Patent
1990-07-03
1993-02-02
Bryant, III, James E.
Pipes and tubular conduits
Combined
With hose protector
138103, 138149, 138124, 138125, 138127, 138178, 174121A, F16L 1112, F16L 5914
Patent
active
051830795
ABSTRACT:
A fire-proofing protective covering for an elongate structure such as a hose, an electrical or optical cable, or pneumatic or hydraulic ducting, comprises: a first plurality of layers made of an inorganic material having a structure which is suitable for imprisoning air while still allowing the operation of the elongate structure to be maintained at relatively high temperatures, of the order of at least 850.degree. C., and for a given length of time, of the order of at least several minutes, and a second plurality of layers, with each of the layers being disposed alternately relative to each of the layers of the first plurality so that the layers of the first plurality are on the inside while the layers of the second plurality are made of a material which substantially constitutes a barrier for the air imprisoned in the corresponding layer of the first plurality. The invention is applicable to the opto-electrical industry, to the hydraulic industry, etc. . . . for protecting ducting from fire.
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Bryant III James E.
Hutchinson S.A.
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