Sensor cable
AssigneeTyco Thermal Controls LLC
InventorsKenneth Ferrell McCoy, Robert Stephen Wasley
Life of this patent
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Abstract
A cable suitable for detecting the presence of corrosive liquids is disclosed. In an embodiment the cable includes two sensing wires wrapped around a core member, at least one of the sensing wires being surrounded by a non-conductive surface layer. In an alternate embodiment the cable includes two sensing wires wrapped around a core member, the sensing wires and core member being encapsulated by a non-conductive surface layer. Preferably, the cable includes insulating wires for detecting the location of a leak. When a corrosive liquid contacts the sensing wires of the cable an electrical connection is created between them.
Claims10
A cable suitable for detecting the presence of a corrosive liquid comprising:
- a) first and second sensing wires comprising a center conductor surrounded by at least one conductive layer, at least one of said first and second sensing wires further surrounded by at least one non-conductive surface layer;
- and
- b) a core member around which said first and second sensing wires are wrapped.
A cable suitable for detecting the presence of a corrosive liquid comprising:
- a) first and second sensing wires comprising a center conductor surrounded by at least one conductive layer;
- b) a core member around which said first and second sensing wires are wrapped;
- c) at least one non-conductive surface layer encapsulating said first and second sensing wires and said core member.
A cable suitable for detecting the presence of a corrosive liquid comprising:
- a) first and second sensing wires comprising a solid metal center conductor surrounded by a layer of conductive polyvinylidene fluoride which conductive layer is surrounded by a layer of polyurethane;
- b) a core member around which said first and second sensing wires are wrapped comprising a central support member comprised of a stranded nickel-plated copper wire surrounded by two layers of ethylene/tetrafluoroethylene copolymer surrounded by a layer of thermoplastic elastomer.
Dependencies are inferred from the claim text.