Abstract: A sliding shell mechanism includes three hidden circumferential bands, each hidden circumferential band including one large rectangular piece, two square pieces and three rectangular pieces, the large rectangular piece comprising the equivalent of a fourth rectangular piece and a third square piece, eight triangular surface pieces, each triangular surface piece having an outside body portion, an inside body portion and a surrounding slot extending between the outside body portion and the inside body portion, and wherein the surrounding slots are sized and configured to slidingly and matingly receive portions of the large rectangular piece, the two square pieces, and the three rectangular pieces.

Abstract: A sliding shell mechanism includes a circumferential band, and a pair of portions attachable to the circumferential band, each portion having formed on an edge portion thereof an annular groove, the grooves being sized and configured to slidingly and matingly receive tongue portions of the circumferential band. The disclosed sliding shell mechanism may include additional circumferential bands and provide a hollow interior portion in which electronic circuits may be disposed.

Abstract: A sliding shell mechanism includes a circumferential band, and a pair of portions attachable to the circumferential band, each portion having formed on an edge portion thereof an annular groove, the grooves being sized and configured to slidingly and matingly receive tongue portions of the circumferential band. The disclosed sliding shell mechanism may include additional circumferential bands and provide a hollow interior portion in which electronic circuits may be disposed.