Patent ID: 11944979
Assignee: URBAN MINING CORP B.V.
Field: Chemical engineering (Chemistry)
Classification: CPC B  H | IPC B  H

Claim 15:
16. A magnet apparatus for generating a magnetic field, especially a unidirectional magnet field gradient apparatus for generating a magnetic field having a magnetic field gradient in a direction perpendicular to a first plane, the magnet apparatus comprising:
at least three coils arranged besides each other along a first axis in the first plane, wherein each coil comprises a conductor comprising a material having superconducting properties at an operating temperature, the coils further comprise two legs and two bent end sections in the first plane, wherein a first and a second leg are arranged parallel to each other along a second axis in the first plane transverse to the first axis, and the two bent sections are arranged opposite to each other; and
a controller arranged to control currents through the respective coils to obtain a current distribution in the first plane, wherein a current direction of the current distribution is alternating between opposite directions parallel to the second axis, with a period λ along the first axis.