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US 2009/0301172 A1Published application
Twisted leak detection cable
AssigneeRaymond & Lae Engineering, Inc.
InventorDonald M. Raymond
Life of this patent
Estimating the term…
Abstract
Disclosed is a leak detection cable that has an outer jacket layer and a four wire construction in a flat wire configuration that is twisted in a helix. Detection cables are disposed on the exterior surface adjacent openings of the jacket to allow for detection of aqueous fluids. The wire is twisted in a helix to allow adjacent detector wires to easily detect aqueous fluids. Disparate materials are used for the jacket and the coatings of the wires, to allow the jacket to be easily removed from the wires without affecting the integrity of the coatings of the wires. The four flat wire configuration is sized and spaced for easy connection to an insulation displacement connector.
Claims37
A leak detection cable comprising:
- a first detector conductor comprising:
- a first detector wire;
- a first conductive covering surrounding said first detector wire that comprises a preselected conductive plastic;
- a first feedback conductor disposed adjacent to said first detector wire that defines a plane with said first detector conductor comprising:
- a first feedback wire;
- a first insulating covering surrounding a preselected non-conductive plastic;
- a second feedback conductor disposed in said plane adjacent to said first feedback connector comprising:
- a second feedback wire;
- a second insulating covering surrounding said second feedback wire that comprises said preselected non-conductive plastic;
- a second detector conductor disposed in said plane adjacent to said second feedback connector comprising:
- a second detector wire;
- a second conductive covering surrounding said second detector wire that comprises said preselected conductive plastic;
- a jacket that surrounds said first feedback conductor and said second feedback conductor and partially surrounds said first detector conductor and said second detector conductor by an amount that is sufficient to hold said first detector conductor and said second detector conductor and provides openings adjacent to said first conductive covering and said second conductive covering to allow exposure to aqueous fluids, said jacket made from a plastic jacket material that is dissimilar to, and has low adhesion with, said preselected conductive plastic and said preselected non-conductive plastic so that said jacket can be easily removed from said first detector conductor, said second detector conductor, said first feedback conductor and said second feedback conductor.
10 more elements
A method making a leak detection cable comprising:
- providing a first conductive covering, that comprises a preselected conductive plastic, around a first detector wire to form a first detector conductor;
- providing a second conductive covering, that comprises said preselected conductive plastic, around a second detector wire to form a second detector conductor;
- providing a first non-conductive covering, that comprises a preselected non-conductive plastic, around a first feedback wire to form a first feedback conductor;
- providing a second non-conductive covering, that comprises said preselected non-conductive plastic, around a second feedback wire to form a second feedback conductor;
- placing said first feedback conductor adjacent to said first detector conductor to form a plane;
- placing said second feedback conductor adjacent to said first feedback conductor in said plane;
- placing said second detector conductor adjacent to said second feedback conductor in said plane;
- providing a jacket around said first detector conductor, said first feedback conductor, said second feedback conductor and said second detector conductor so that said first feedback conductor and said second feedback conductor are substantially surrounded by said jacket, and said first detector conductor and said second detector conductor are partially surrounded by said jacket by an amount sufficient to hold said first detector conductor and said second detector conductor in said jacket and provide openings adjacent to said first detector conductor and said second detector conductor to allow exposure to aqueous fluids, said jacket comprising a plastic jacket material that is dissimilar to, and has low adhesion with, said preselected conductive plastic and said preselected non-conductive plastic so that said jacket can be easily removed from said first detector conductor, said first feedback conductor, said second feedback conductor and said second detector conductor.
5 more elements
A leak detection cable comprising:
- at least one detector conductor comprising:
- a detector wire;
- a conductive covering surrounding said detector wire that comprises a preselected conductive plastic;
- at least one feedback conductor disposed adjacent to said detector wire that defines a plane with said detector conductor comprising:
- a feedback wire;
- an insulative covering surrounding a preselected non-conductive plastic;
- a jacket that surrounds said at least one feedback conductor and partially surrounds said at least one detector conductor by an amount that is sufficient to hold said first detector conductor and provides openings adjacent to said conductive coating to allow exposure to aqueous fluids, said jacket made from a plastic jacket material that is dissimilar to, and has low adhesion with, said preselected conductive plastic and said preselected non-conductive plastic so that said jacket can be easily removed from said at least one detector conductor and said at least one feedback conductor.
4 more elements
A method making a leak detection cable comprising:
- providing a conductive coating, that comprises a preselected conductive plastic, around at least one detector wire to form a detector conductor;
- providing a non-conductive coating, that comprises a preselected non-conductive plastic, around at least one feedback wire to form a feedback conductor;
- placing said feedback conductor adjacent to said detector conductor to form a plane;
- providing a jacket around said detector conductor and said feedback conductor so that said feedback conductor is substantially surrounded by said jacket, and said detector conductor is partially surrounded by said jacket by an amount sufficient to hold said detector conductor in said jacket and provide an opening adjacent to said detector conductor to allow exposure to aqueous fluids, said jacket comprising a plastic jacket material that is dissimilar to, and has low adhesion with, said preselected conductive plastic and said preselected non-conductive plastic so that said jacket can be easily removed from said detector conductor and said feedback conductor.
1 more element
A leak detection cable comprising:
- at least one detector conductor comprising:
- a detector wire;
- a covering surrounding said detector wire;
- a jacket that partially surrounds said at least one detector conductor by an amount that is sufficient to hold said detector conductor and provides an opening adjacent to said covering to allow exposure to aqueous fluids, said jacket made from a plastic jacket material that is dissimilar to, and has low adhesion with, said preselected conductive plastic so that said jacket can be easily removed from said at least one detector conductor.
1 more element
A method for making a leak detection cable comprising:
- extruding a conductive coating, that comprises a preselected conductive plastic, around at least one detector wire to form a detector conductor;
- extruding a jacket around said detector conductor, so that said detector conductor is partially surrounded by said jacket by an amount sufficient to hold said detector conductor in said jacket and provide an opening adjacent to said detector conductor to allow exposure to aqueous fluids, said jacket comprising a plastic jacket material that is dissimilar to, and has low adhesion with, said preselected conductive plastic and said preselected non-conductive plastic so that said jacket can be easily removed from said detector conductor.
A leak detection cable comprising:
- a first detector conductor comprising:
- a first detector wire;
- a first detector covering surrounding said first detector wire;
- a first feedback conductor disposed adjacent to said first detector wire that defines a plane with said first detector conductor comprising:
- a first feedback wire;
- a first insulating covering surrounding a preselected non-conductive plastic;
- a second feedback conductor disposed in said plane adjacent to said first feedback connector comprising:
- a second feedback wire;
- a second insulating covering surrounding said second feedback wire that comprises said preselected non-conductive plastic;
- a second detector conductor disposed in said plane adjacent to said second feedback connector comprising:
- a second detector wire;
- a second detector covering surrounding said second detector wire;
- a jacket that surrounds said first feedback conductor and said second feedback conductor and partially surrounds said first detector conductor and said second detector conductor by an amount that is sufficient to hold said first detector conductor and said second detector conductor and provides opening adjacent to said first detector covering and said second detector covering to allow exposure to aqueous fluids, said jacket made from a plastic jacket material that is dissimilar to, and has low adhesion with, said detector covering and said preselected non-conductive plastic so that said jacket can be easily removed from said first detector conductor, said second detector conductor, said first feedback conductor and said second feedback conductor, said jacket twisted in a helical configuration so as to sequentially expose said first detector conductor and said second detector conductor.
10 more elements
A method of making a leak detection cable comprising:
- placing a first detector covering around a first detector wire to form a first detector conductor;
- placing a second detector covering around a second detector wire to form a second detector conductor;
- placing a first non-conductive covering, that comprises a preselected non-conductive plastic, around a first feedback wire to form a first feedback conductor;
- placing a second non-conductive covering, that comprises said preselected non-conductive plastic, around a second feedback wire to form a second feedback conductor;
- placing said first feedback conductor adjacent to said first detector conductor to form a plane;
- placing said second feedback conductor adjacent to said first feedback conductor in said plane;
- placing said second detector conductor adjacent to said second feedback conductor in said plane;
- extruding a jacket around said first detector conductor, said first feedback conductor, said second feedback conductor and said second detector conductor so that said first feedback conductor and said second feedback conductor are substantially surrounded by said jacket, and said first detector conductor and said second detector conductor are partially surrounded by said jacket by an amount sufficient to hold said first detector conductor and said second detector conductor in said jacket and provide openings adjacent to said first detector conductor and said second detector conductor to allow exposure to aqueous fluids, said jacket comprising a plastic jacket material that is dissimilar to, and has low adhesion with, said first detector covering, said second detector covering and said preselected non-conductive plastic so that said jacket can be easily removed from said first detector conductor, said first feedback conductor, said second feedback conductor and said second detector conductor;
- twisting said jacket in a helix so that said first detector conductor and said second detector conductor are sequentially exposed along a linear surface of leak detection cable.
6 more elements
Dependencies are inferred from the claim text.