CHORD Russian patent published in 2010 - IPC F16J15/00 D04D1/00 

FIELD: heating systems.

SUBSTANCE: invention refers to heat-resistant chords intended for being used as heat insulation and/or sealing of connections in various heating units and heat-conducting systems at temperature of up to 400°C. Proposed chord is made from fibrous and/or thready material so that not less than 92% of surface area of corresponding cross section falls at fibrous and/or thready material for each cross section of chord.

EFFECT: invention provides increase in operating characteristics of the product, increase in mechanical strength of chord, and at the same time, it allows maintaining minimum gas permeability of chord.

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