Abstract: An elevated card guide is integrally formed in a card cage in a process using a press, a sheet of raw material, and a tool for forming a plurality of features having at least three levels. In one embodiment, the card guide includes several multi-level bridges with at least three levels in each bridge. In another embodiment, a lead-in is formed in at least one end of at least one horizontal bridge in the multi-level bridges. Still another embodiment incorporates at least one landing in at least one of the horizontal bridges. Lead-ins and landings may also be incorporated into one or more multi-level bridges. The tool includes a male portion and a female portion which cooperate simultaneously. The tool is able to accurately dimension a part in total compliance with required specifications and all printed circuit board designs. A method of forming a plurality of multi-level features uses the press, the sheet, and the tool to form complete features in a single stroke step using the single tool.

Abstract: A circuit board ejector/injector system enabling the insertion and removal of circuit boards from a card cage is provided. A lever handle is rotatably mounted on an exterior corner of the circuit board in a manner that permits the lever handle to extend out and through an opening formed in an outer front panel of the card cage. Insertion and removal of the circuit boards is accomplished by the selective rotation of the lever handle, with only one of a pair of finger extensions located on the lever arm cooperatively inter-engaging with the circuit board, depending upon the direction of lever handle rotation. Reversal of the rotational direction causes the other finger extension to inter-engage with the circuit board, and the removal/insertion process to be reversed.