Patent ID: 6796718
Filing Date: 2004-09-28
Classification: G02B,H01F

Abstract:
An electromagnetic positioner, with a piston which piston is movable between a first and a second predefined position and is held by a piston guide, characterisedin that the movable piston comprises a permanent magnet oriented in the direction of movement, in that the positioner comprises an electromagnetic coil capable of polarity reversal with a core capable of polarity reversal in the direction of movement of the piston, by means of which coil, in accordance with its magnetization, the piston is movable from the one predefined position into the other predefined position, in that the core, capable of polarity reversal, has a magnetic remanence by means of which the movable piston is fixable in one of the two predefined positions when the coil is not energized.