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US 4,400,259 AGranted
Deep anode assembly
AssigneeMatcor, Inc.
InventorWilliam R. Schutt
Life of this patent
Estimating the term…
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AssigneeMatcor, Inc.
InventorWilliam R. Schutt
Estimating the term…
A cathodic protection system having a deep bed anode assembly including a readily replaceable anode. The anode assembly is located within a deep bore hole which is filled with an electrically conductive particulate material up to a predetermined height. The assembly comprises a base assembly located on the bottom of the bore hole, a first conduit extending the full length of the bore hole to the base, and a second conduit connected to the first conduit adjacent the top of the bore hole and extending to a depth slightly below the height of the conductive material and a third conduit extending the full length of the bore hole and perforated along the portion within the electrically conductive material. A small diameter wire electrode extends through the electrically conductive material and is connected at its upper end in a cable extending through the first conduit and at its lower end in a cable passing through the base assembly and the first conduit. Both cables are connected to a rectifier located on the surface remote from the bore hole. Rope guide means are connected to the two cables and extend parallel with the assembly of the cables and anode.
An anode assembly for use in a system for cathodically protecting underground metal structures and having a deep bore hole, said bore hole being filled with an electrically conductive material from the bottom of said bore hole to a first point in the bore hole, said anode assembly comprising a weighted bottom assembly arranged for disposition at the bottom of said bore hole, first conduit means extending the depth of said bore hole and connected to said bottom assembly, an electrically conductive longitudinally extending anode located generally outside said first conduit means yet within said bore hole between said bottom assembly and the top of the bore hole and substantially centrally within said bore hole for direct exposure to said electrically conductive material, said anode having an upper end to which a first conductor is connected and a lower end to which a second conductor is connected, said first conductor extending from said upper end of said anode through said bore hole for connection to rectifier means located outside of said bore hole, said second conductor extending through said base assembly and through said first conduit means to the top of said bore hole for connection to said rectifier means wherein removal and replacement of said anode is readily accomplished by pulling said second conductor through said first conduit means to the outside of said bore hole.
An anode assembly for use in a system for cathodically protecting underground metal structures and having a deep bore hole, said bore hole being filled with an electrically conductive material from the bottom of said bore hole to a first point in the bore hole, said anode assembly comprising a weighted bottom assembly arranged for disposition at the bottom of said bore hole, said bottom assembly including a weighted base with arcuate conduit means extending therethrough, an electrically conductive longitudinally extending anode located within said bore hole and between said bottom assembly and the top of the bore hole and substantially centrally within said bore hole for direct exposure to said electrically conductive material, said anode having an upper end to which a first conductor is connected and a lower end to which a second conductor is connected, said first conductor extending through said bore hole for connection to rectifier means located outside of said bore hole, said second conductor extending through said arcuate conduit means of said base assembly and said bore hole for connection to said rectifier means wherein removal of said anode is readily accomplished by pulling said conductors and said anode through said bore hole to the outside thereof.
Dependencies are inferred from the claim text.