Electromechanical actuator

Claim 1

In an electromechanical actuator system for a bomb rack including electromechanical switch means for responding to a control signal to actuate a bomb rack plunger, an electrically conductive housing for enclosing the switch means, the switch means having a control signal circuit and an indicator light circuit, the improvement comprising: a first capacitor installed in the control signal circuit within the housing and a second capacitor installed in the light indicator circuit within the housing; a filter line cable including a plurality of conductors which are connected at one end to the switch means, each conductor being encased in a first electrical insulating material, an electrically conductive shield being wrapped around the insulated conductors, the shield being encased in a second electrical insulating material, and the cable being at least 12 inches in length; the housing including a first section and a second section and being grounded to a vehicle, each section forming a complementary semi-circular edge of a hole, the shield and the conductors and first insulating material within the shield passing through the hole, the edges of the hole contacting substantially the entire periphery of the shield so that the shield can be grounded through the housing via the edges only and the edges clamping the cable to the housing a multi-prong plug to which the other ends of the conductors are connected; an electrically conductive connector attached at one end to the plug and at its other end to substantially the entire periphery of the shield nearest the plug, the connector being grounded to a vehicle so that substantially the entire periphery of the shield can also be grounded via the connector; and the first and second capacitors and the filter line cable, having its periphery grounded at both ends via the housing and the connector, cooperating to filter and suppress high frequency electromagnetic emissions from the switch and high frequency electromagnetic interference.