Abstract: Embodiments of the present invention include a folding shelf intended for attachment to a door having a mail slot. The shelf is pivotably attached below the mail slot by a support and moved from its storage position to its operative position by a chain attached to the door by a fastener. The chain is attached to the shelf near that part of the shelf that is distal from the door. Using embodiments of the present invention, items inserted through the door are retained on the shelf rather than fall to the floor, and the door remains functional when the shelf is in the operative position.

Abstract: A deflector for an aircraft engine comprises a screen attached to a base, a connector connecting the base and the engine, a mechanism to limit the movement of the connector and base, a spring that has two ends, one end being attached to the base inside surface, the spring extending past the base, and the spring's other end is positioned proximate the screen; and a shock absorbing means attached to the base, and connects the base with the engine, whereby when a foreign object contacts the deflector with a force sufficient force to move the spring and the shock absorbing means, the screen, the spring and the shock absorbing means are urged towards the engine, the movement of the screen and the spring being controlled by the shock absorbing means and the limiting mechanism, preventing the foreign object, such as a bird, from entering the engine.