Patent ID: 6702252
Filing Date: 2004-03-09
Classification: F16K

Abstract:
An impact armature for a solenoid device, adapted to move and perform a working stroke when said solenoid device is activated, said armature comprising:a ferromagnetic armature provided with shoulder means; an effector member made of a non-ferromagnetic material and provided with counter-shoulder means whereby said effector member is engageable by the shoulder means of said armature, and a ferromagnetic element affixed to said effector member, characterized in that, in operation, said armature performs a three-phase working stroke, wherein, in a first phase, said armature moves relative to said effector member for a relatively short, predetermined distance while said effector member remains stationary, and, in a second phase, said armature completes its working stroke, said shoulder means engaging said counter-shoulder means, thereby carrying along said effector member and causing it to move a first distance, after which the ferromagnetic element in said effector member, being attracted to said armature, causes said effector member to move an additional distance.