Abstract: A pulsation dampener includes: a centerbody assembly having: a chamber including a first opening bounded by a wall defining a first surface; an outlet port communicating with the chamber; an inlet port communicating with the chamber; a flexible first diaphragm, wherein a perimeter of the first diaphragm is bonded to the first surface forming a seal that blocks the passage of fluid; a first cap disposed adjacent the first diaphragm, defining a first cavity between the first cap and the first diaphragm; an inlet orifice formed in the first cap communicating with the first cavity; an exhaust orifice formed in the first cap communicating with the first cavity; and a valve seat disposed in the first cavity in fluid communication with the exhaust orifice. The first diaphragm is moveable between an open position spaced away from the valve seat, and a closed position sealed against the valve seat.

Abstract: A retainer made from a shape memory alloy (SMA) is utilized in a separation device that is particularly useful for space applications. Upon being heated to a restoration temperature, the retainer changes from a constricted state to an expanded state. In its constricted state, the retainer surrounds and captures a plurality of securing segments to secure an object. To release the secured object, the retainer is heated to its restoration temperature with an electrical heater, causing the retainer to return to its expanded state and allow the securing segments to move apart and release the secured object.