Plastic container with drain back spout and method and apparatus for making same

摘要

A one-piece self-draining container (10) and method and apparatus for forming same. The container includes a body (11) and a finish wall (16) extending upwardly from a body opening (12). The finish wall surrounds a dispensing spout (18) which extends above the top of the wall. A frustoconical web (24, 24') joins the finish wall and the dispensing spout to form a drain apron gutter channel (28) having a relatively steeply inclined cone angle. A drain opening (30) is defined adjacent the channel for draining fluid from the channel (28) into the container body (11). A removable cap (40) has a depending skirt (44,48) with an external thread (49) which mates with an internal thread (32) on the container wall (16) to thereby threadably engage and close the container (10). The method is performed on the type of extrusion-injection blow molding machine as generally disclosed in U.S. Patent 2,804,654 as modified in accordance with the invention to form the web wall (24, 24') in situ with a frustoconical configuration of uniform cross sectional thickness.