Patent ID: 8106734
Filing Date: 2012-01-31
Classification: H01F,Y10T

Abstract:
1. A solenoid comprising: a housing comprising a housing first end, the housing at least partially defining a housing cavity, the housing cavity having an essentially open housing mouth; a moveable magnetically permeable member which translates at least partially within the housing from a latched position to a stroked position along an axis, the moveable magnetically permeable member comprising a moveable mating surface at least partially lying in a plane transverse to the axis when in the latched position; a stationary magnetic assembly situated at least partially in the housing and in the cavity inserted through the housing mouth, the stationary magnetic assembly comprising: a counter flux generator; a spring which biases the moveable magnetically permeable member away from the stationary magnetically permeable assembly when a counter flux generated by the counter flux generator overcomes the permanent magnetic flux.