Three conductor heating element
First Claim
Patent Images
1. A heating blanket, comprising:
- a blanket;
a heating element routed within said blanket, said heating element comprising;
a sensor conductor;
two resistive conductors, one said resistive conductor arranged on one side of said sensor conductor and an other said resistive conductor arranged on an other side of said sensor conductor such that said sensor conductor and said two resistive conductors are substantially parallel; and
plastic electrical insulation surrounding said sensor conductor and each said resistive conductor; and
a control electrically coupled with said sensor conductor and said resistive conductors.
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Abstract
A heating element, including a sensor conductor, two resistive conductors, with one resistive conductor arranged on one side of the sensor conductor and an other resistive conductor arranged on an other side of the sensor conductor such that the sensor conductor and the two resistive conductors are substantially parallel and plastic electrical insulation surrounding the sensor conductor and each resistive conductor.
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Citations
15 Claims
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1. A heating blanket, comprising:
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a blanket;
a heating element routed within said blanket, said heating element comprising;
a sensor conductor;
two resistive conductors, one said resistive conductor arranged on one side of said sensor conductor and an other said resistive conductor arranged on an other side of said sensor conductor such that said sensor conductor and said two resistive conductors are substantially parallel; and
plastic electrical insulation surrounding said sensor conductor and each said resistive conductor; and
a control electrically coupled with said sensor conductor and said resistive conductors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
a safety sensor electrically coupled to said sensor conductor, said safety sensor outputting a disconnect signal when said sensor conductor comes into electrical contact with at least one resistive conductor;
a disconnect device electrically coupled in series with said resistive conductors, said disconnect device electrically coupled to said safety sensor and configured to disconnect electrical power to said resistive conductors when a disconnect signal is received from said safety sensor; and
a thermostatic control electrically coupled to said sensor conductor, said thermostatic control detecting a temperature of said blanket and thereby regulating electrical power supplied to said resistive conductors.
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9. The heating blanket of claim 1, wherein said two resistive conductors are made of a copper-nickel alloy.
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10. A heating element, comprising:
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a sensor conductor;
two resistive conductors, one said resistive conductor arranged on one side of said sensor conductor and an other said resistive conductor arranged on an other side of said sensor conductor such that said sensor conductor and said two resistive conductors are substantially parallel; and
plastic electrical insulation surrounding said sensor conductor and each said resistive conductor. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification