Fire hydrant thermal and acoustic insulation material

Details Fire hydrant thermal and acoustic insulation material Fire hydrant thermal and acoustic insulation material

1998-11-25

1999-09-21

Raimund, Christopher

Fabric (woven, knitted, or nonwoven textile or cloth, etc.)

Coated or impregnated woven, knit, or nonwoven fabric which...

Coating or impregnation provides heat or fire protection

442 65, 442 70, 442 74, 442377, 442388, 442393, 427209, 4273855, 4273899, 427392, 4273933, B32B 2724

Patent

active

059553863

ABSTRACT:
An open weave, air permeable fiber pad is formed from a plurality of compressed, interlocked fiber strands. A non-uniform, three dimensional grid of spaced apart, expandable graphite particles are secured at randomly spaced apart intervals to individual fiber strands with a particle distribution density sufficient to form a barrier to air flow through a defined area of the fiber pad when exposed to a source of heat causing the expandable graphite particles to be converted from their normal volume to a heat-activated, substantially expanded volume.

REFERENCES:
patent: 5232976 (1993-08-01), Horacek et al.
patent: 5384188 (1995-01-01), Lebold et al.

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