Shipping containers

Claim 1

A RECESSED-END CARTON HAVING TWO ENDS AND A PLURALITY OF SIDES, THE SIDES IN CROSS-SECTION TAKEN AT RIGHT ANGLES TO AN IMAGINARY LINE BETWEEN THE MIDPOINTS OF THE ENDS DEFINING A POLYGON, SAID SIDES BEING FORMED FROM A PLURALITY OF PANELS, THE NUMBER OF SAID PANELS EXCEEDING BY AT LEAST ONE THE NUMBER OF SIDES OF SAID CARTON AND AT LEAST TWO OF SAID PANELS BEING SUPERPOSED AND SUBSTANTIALLY OVERLAPPING, EACH OUTER PANEL HAVING A FLAP AT EACH END INTEGRAL THEREWITH BUT DELINEATED THEREFROM BY A CREASE LINE EXTENDING PARALLEL TO THE END OF THE CARTON, EACH OVERLAPPED INNER PANEL BEING SHORTER THAN ITS CORRESPONDING OUTER PANEL AT EACH END BY AN AMOUNT EQUAL TO AT LEAST THE DISTANCE BETWEEN SAID CREASE LINE AND THE END OF SAID FLAP, AN END PIECE HAVING A POLYGONAL CENTRAL PORTION ESSENTIALLY IDENTICAL IN SIZE AND SHAPE TO THE POLYGON DEFINED BY THE INNER FACES OF SAID OUTER PANELS AND POSITIONED SNUGLY THEREWITHIN PARALLEL TO EACH OF THE ENDS OF SAID OUTER PANELS, SAID POLYGONAL CENTRAL PORTION BEING DELINEATED BY CREASE LINES FROM SHARPLY UPTURNED INTEGRAL TABS, EACH TAB EXTENDING TOWARD AND TERMINATING NEAR THE CORRESPONDING END OF THE OUTER PANELS AND LYING PARALLEL TO AND IN CONTACT WITH ONE OF SAID OUTER PANELS, EACH FLAP BEING FOLDED BACK PARALLEL TO THE PANEL WITH WHICH IT IS INTEGRAL SO AS TO SNUGLY GRIP A TAB BETWEEN SAID FLAP AND SAID PANEL.