US Patent 8091565 Makeup case with drawer

The invention concerns a makeup case. A primary tray as well as a tray form a drawer slidingly mounted in relation to the primary tray. A spring exerts a force tending to assist the opening of the tray forming the drawer or a force tending to assist its closing depending on whether or not the tray forming the drawer is open beyond an intermediate position which corresponds to an unstable position for the spring. The spring may be two torsion springs arranged symmetrically on either side of an axis extending along the direction of the opening or closing movement of the tray forming the drawer.