Patent ID: 6067000
Filing Date: 2000-05-23
Classification: F16F,H01F

Abstract:
An electromagnetic actuator comprising:a housing structure,first and second electromagnets disposed in spaced relation in said housing structure,an armature mounted for reciprocal movement between said electromagnets, anda spring assembly operatively associated with said armature, said spring assembly comprising:a spring,a spring retainer carrying said spring and being constructed and arranged to contact said armature,a spring adjusting member engaged with a bore in said housing structure, said spring adjusting member engaging said spring so as to control compression of said spring associated with a set position of said armature between said electromagnets, said spring applying a load to said spring adjusting member in a load direction,at least one engaging element extending from a surface of said housing structure generally adjacent to said bore and movable towards and away from said surface of said housing, anda locking member engaged with said spring adjusting member and with said engaging element, said engaging element pushing against said locking member in said load direction to prevent movement of the spring adjusting member to maintain the compression of the spring associated with the set position of the armature.