Abstract: A removable stiffener, which is made of titanium so that it will not be wetted by solder, consists of a thick, straight center member with wedge-shaped feet evenly spaced along its length. A latching pin is included on one end. The stiffener also includes flanges made of thinner stock, running the length of the stiffener on both sides. These flanges strengthen the center member and hold it perpendicular to the card on which the stiffener is installed. The stiffener requires a one-half inch wide channel on the card and a special pattern of slots. To install the stiffener, the feet are inserted part-way into the slots with the latching pin of the stiffener oriented near the latching slot of the card. The card is then bent gently away from the stiffener while the stiffener is being pushed forward so that the latching pin and the latching slot align and engage. When the card springs back the stiffener is latched in place.

Abstract: A tool for separating a printed wiring card under test from an extender card operated in response to insertion of a portion of the tool into a space between the extender card and the card under test and rotation of the tool, facilitating the complete separation of the card under test from the extender card.