Patent ID: 7847671

Claim:
A data and power transmission inductive coupler, comprising: a) a U-shaped external transformer to be mounted on a stationary rig or subsea construction, said U-shaped external transformer having a coil and an inner circumferential surface; b) an O-shaped internal transformer to be mounted on a downhole tool having a maximum tool diameter, said O-shaped internal transformer having a coil and an outer circumferential surface for mating with said inner circumferential surface of said U-shaped external transformer; c) said outer circumferential surface of said O-shaped transformer being equal to or smaller than said inner circumferential surface of said U-shaped external transformer mating therewith; d) said O-shaped transformer and said U-shaped transformer have no wire connection therebetween; e) said O-shaped transformer being configured to be wired to tool electronics and batteries; f) said U-shaped transformer being configured to be wired to surface equipment or other subsea remotely operated units; and g) said O-shaped transformer having an outer diameter not exceeding the maximum tool diameter, and said O-shaped transformer being divided into two equal halves along said diameter for assembling said O-shaped transformer on the tool.