Patent ID: 11927041
Assignee: IRONBOX S.R.L.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 4:
5. The device according to claim 3, comprising
a second pair of equal, spaced and parallel rows of magnets arranged parallel to the axis for creating in the middle of the two rows an empty space crossed by magnetic field lines emerging from one row and entering the other, and
a second element, reactive to the magnetic field, which extends parallel to the axis between the two rows of the second pair,
the rows of the second pair and the second element being able to slide relatively parallel to the axis to move the object between two positions,
wherein the second element in correspondence of said space has a cross-section which, seen in a plane orthogonal to the axis,
remains constant along the axis
but along a direction orthogonal to an imaginary plane which contains the two rows, direction along which a load acts, has a width which along said orthogonal direction is decreasing as it is farther away from the plane.