Drain fitment for bulk containers

Claim 1

In a bulk container of the type having a side wall of multi-wall fibreboard with a side wall opening extending therethrough from an inner wall surface to an outer wall surface, and a plastic retainer member supportedly mounted within the container for retaining the bulk flowables, the plastic member having a drain opening extended there through in registry with the side wall opening for passing the flowables driven by gravity flow from the container from within the plastic member through the drain opening and side wall opening, an improved push/turn tap and drain spout fitment assembly, in combination therewith, comprising: a drain spout assembly including an annular flange sealed to the plastic member about the drain opening, spout means in fluid communication with the drain opening for establishing a discharge flow path through the side wall opening, and a polygonal flange having a polygonal cross-section interconnected between the spout means and the annular flange and operatively engaged to the multi-wall fibreboard within the side wall opening for restraining rotation of the spout means relative to the plastic retainer member, the spout means comprising a spout tube extended outwardly of the container, the spout tube including a threaded outer surface and a threaded inner surface, a nut threadably engaged to the outer surface of the spout tube in abutment with the outer wall surface of the side wall for holding the annular flange against the inner wall surface of the side wall; a closure member removably mounted to the drain spout assembly for closing the flow path in a first position and opening the flow path in a second position; a tubular member mounted in the discharge flow path and having a portion designed for reception in the closure member and including means, outside of the container, such that the tubular member may be gripped for translating movement of the portion into engagement with the closure member and into rotary movement of the closure member from the first position to the second position; and coupling means for coupling the tubular member to the spout tube outer surface;