US Patent 11801965 Vertically-crushable container and multi-wall container

A container includes a bottom wall and a side wall. Multiple vertically-crushable units are formed in the side wall, each unit of the multiple units includes mountain fold lines formed by sides of parallelograms and valley fold lines formed by diagonal lines of the parallelograms, and the multiple units are stacked in tiers such that each pair of the parallelograms in upper and lower tiers have a common lower/upper side and the parallelograms in the upper and lower tiers alternately become line-symmetrical with respect to the common lower/upper side.