Separation Spring Actuator.
DEPARTMENT OF THE AIR FORCE WASHINGTON D C
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The patent relates to an actuator adapted for use in separating two interconnected bodies, such as, for example, blowing out emergency doors on an aircraft, while maintaining their respective desired directions. In the preferred embodiment, the actuator includes a housing which supports and guides a captive coiled spring that is adjusted for proper pre-load compression by a nut, and a center plunger to which is removably connected a bolt, headup. The actuator is attached to one of the interconnected bodies. The proper plunger travel is adjusted by a retraction tool that is then removed and, the bolt is extended to touch the other interconnected body. When the interconnection is broken, the spring is released and, without changing the direction of the body to which the actuator is attached, imparts the desired direction to the first body.