Electric blanket or pad
An electrically heated device, such as a heating pad, mattress pad or electric blanket, having a heating cable 12 comprising two conductors 24, 26 separated by a layer of positive temperature coefficient material 28 wherein the electrical power supplied to the conductors produces its primary I R hea...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | An electrically heated device, such as a heating pad, mattress pad or electric blanket, having a heating cable 12 comprising two conductors 24, 26 separated by a layer of positive temperature coefficient material 28 wherein the electrical power supplied to the conductors produces its primary I R heating effect in the PTC material and the two ends 24a, 24b, 26a, 26b of each of the conductors are connected together and each conductor has means to connect it to one power supply terminal. |
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