A power actuator including a movable actuator member at the rear of a casing wall and has means for generating a magnetic field attached thereto, and a magnetic field sensor adapted to be mounted at the front of the casing wall. In order to permit the position of a piston to be detected even in the case...http://www.google.fr/patents/US5231352?utm_source=gb-gplus-shareBrevet US5231352 - Power actuator including magnetic position detector
Power actuator including magnetic position detector
