Shipping container for particulate solids

Claim 1

A SHIPPING PACKAGE OF PARTICULE SOLIDS ADAPTED FOR THE SHIPMENT OF HEAVY CONTENTS WEIGHTING IN THE HUNDREDS OF POUNDS COMPRISING IN COMBINATION A BOX OPEN ACROSS ITS FULL TRANSVERSE CROSS SECTION HAVING PLANE, RELATIVELY RIGID SIDE WALLS OF EQUAL LENGTHS AND WIDTHS DIFFERING NOT MORE THAN 10% FOR BOXES HAVING AN ODD NUMBER OF SIDE WALLS AND NOT MORE THAN ABOUT 10% FROM MULTIPLE RELATIONSHIP AS REGARDS A PRESELECTED PAIR OF OPPOSITELY DISPOSED SIDE WALLS WITH RESPECT TO ANY OTHER PAIR OF OPPOSITELY DISPOSED SIDE WALLS FOR BOXES HAVING AN EVEN NUMBER OF SIDE WALLS, THE RATIO OF LENGHTS TO WIDTH OF THE NARROWEST OF SAID SIDE WALLS BEING BELOW ABOUT 2:1, TOP AND BOTTOM CLOSURE MEMBERS FOR SAID BOX, AND AT LEAST ONE UNITARY CYLINDRICAL SLEEVE ELEMENT DISPOSED INSIDE SAID BOX WITH THE OUTSIDE PERIPHERY OF SAID SLEEVE ELEMENT IN PROXIMITY TO AT LEAST ONE OF SAID WALLS OF SAID BOX AND IN RELATIVELY CLOSE JUXTAPOSITION WITH THE PERIPHERIES OF ANY ADJACENT SLEEVE ELEMENT DISPOSED IN CO-PARALLEL RELATIONSHIP WITH SAID FIRST-MENTIONED SLEEVE ELEMENT AND WITH THE ENDS OF SAID SLEEVE ELEMENT DISPOSED SUBSTANTIALLY ABUTTING THE INSIDE SURFACES OF SAID CLOSURE MEMBERS, SAID PARTICULATE SOLIDS FILLING SUBSTANTIALLY THE ENTIRE INSIDE VOLUME OF SAID BOX AND SAID SLEEVE ELEMENT.