Apparatus for use with metallic structures
AssigneeAbriox Limited
InventorsJason Hanlon, Thomas Josef McGee
Life of this patent
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Abstract
Apparatus for connection to a metallic structure, the apparatus comprises a transformer rectifier unit operable to output a DC current for cathodic protection of a metallic structure, and a modulator unit connected to receive a DC output from the transformer rectifier unit. The modulator unit is arranged for connection to a metallic structure, and is operable to produce a modulated current which is applied to such a metallic structure when the apparatus is in use, such that the metallic structure is detectable by a wireless locating device. The modulator unit is operable to be controlled remotely.
Claims31
Apparatus for connection to a transformer rectifier unit which is operable to output a DC current for cathodic protection of a metallic structure, the apparatus comprising:
- a modulator unit connected to receive a DC output from a transformer rectifier unit, and arranged for connection to a metallic structure, wherein the modulator unit is operable to produce a modulated current which is applied to such a metallic structure when the apparatus is in use, such that the metallic structure is detectable by a wireless locating device, and wherein the modulator unit is operable to be controlled remotely.
A method of detecting a buried metallic structure, the method comprising connecting a transformer rectifier unit to a buried metallic structure, supplying a DC current to the metallic structure to provide cathodic protection for the structure, modulating the DC current to provide a modulated current, and detecting the modulated DC current using a wireless locating device.
Apparatus for connection to a metallic structure, the apparatus comprising:
- a transformer rectifier unit operable to output a DC current for cathodic protection of a metallic structure;
- a modulator unit connected to receive a DC output from the transformer rectifier unit, and arranged for connection to a metallic structure, wherein the modulator unit is operable to produce a modulated current which is applied to such a metallic structure when the apparatus is in use, such that the metallic structure is detectable by a wireless locating device, and wherein the modulator unit is operable to be controlled remotely.
Dependencies are inferred from the claim text.