FLOORCOVERINGS HAVING BUILT-IN HEATER
: The invention provides a floorcovering having a built-in heater which comprises a planar sandwich structure including an underlining layer of heat insulating material, at least one heating element provided on one surface of the underlining layer, an electric conductor provided on the one surface o...
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Format: | Patent |
Sprache: | eng ; fre |
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Zusammenfassung: | : The invention provides a floorcovering having a built-in heater which comprises a planar sandwich structure including an underlining layer of heat insulating material, at least one heating element provided on one surface of the underlining layer, an electric conductor provided on the one surface of the underlining layer so as to cover the heating element, a surfacing layer overlaying the conductor on one side of the heating element opposite to the underlining layer, and a lead wire for connecting the conductor to the ground. The electric conductor layer is thus grounded so that short circuits between it and the heating element do not represent a danger to persons in contact with the floor covering. |
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