Collapsed bag with evacuation channel form unit

A substantially flat collapsed bag with a form insert unit disposed therein, said bag comprising opposed superimposed substantially flat walls having a spout extending outwardly from one of the walls adjacent an end of the bag, said form insert unit comprising an elongated form connected to the spout and being of channel shape to direct the bag contents thereto when the bag is evacuated and collapses therearound, said form unit also including a connecting ring which connects with the spout and to which the elongated channel form is flexibly attached, said ring carrying angularly-spaced radially-inwardly extending ribs.

A collapsible container having a spout extending outwardly therefrom, a form unit connected to an inner portion of the spout and extending into the container and about which the container will collapse as its contents are removed through the spout, said form unit comprising a connecting ring connecting with the spout, and an elongated form of channel shape flexibly connected to the ring, said spout having a tubular passage and a socket at the inner end thereof into which the ring fits to be concentric therewith in combination with a dispensing means mounted on the spout and having an outlet, and means for preventing a wall of the container opposite the spout inner end from being sucked into closing position to said outlet when the container is being evacuated, said last-named means including wall-engaging means at the inner end of the spout extending inwardly beyond the spout during the evacuation of the container in the form of an inward projection carried by the spout said inward projection carried by the spout being a flange on said ring which projects axially-inwardly of said inner end of the spout, said elongated form comprising a flat elongated wall with a plurality of parallel ribs on its face to form a plurality of channels, said flat wall being connected by a flexible hinge to the ring at one of its ends, said ribs terminating short of said hinge.

A form unit for insertion into a collapsible container having a spout so that as the filled container is emptied the walls of the container can collapse around it, said form unit comprising a ring for mounting the unit on the spout end and an elongated channel form flexibly connected to the ring and comprising a flat elongated wall connected radially to the ring by a flexible hinge, a plurality of parallel ribs disposed along one face of the wall to form multiple channels, said ribs terminating short of the hinge, said ring having a body with a flange projecting axially therefrom, said flange having a flow-opening adjacent the adjacent ends of the ribs.

An evacuation form unit for emplacement within a flexible collapsible container for liquids having a spout so that as the filled container is emptied the walls of the container collapse about the unit, said unit comprising an attaching ring for mounting the unit on the spout and an elongated member flexibly connected to the ring, said member having at least one continuous longitudinal liquid passage capable of communicating along its length with a body of liquid in the container and of maintaining the integrity of said passage as the container walls collapse about said member by the evacuation of the container, said ring being of a thickness at least equal to that of the elongated member.

An evacuation form unit for emplacement within a flexible collapsible container for liquids having a spout so that as the filled container is emptied the walls of the container collapse about the unit, said unit comprising an attaching ring for mounting the unit on the spout and an elongated member flexibly connected to the ring, said member having at least one continuous longitudinal liquid passage capable of communicating along its length with a body of liquid in the container and of maintaining the integrity of said passage as the container walls collapse about said member by the evacuation of the container, said ring carrying radially-inwardly-extending angularly spaced ribs.

A substantially flat bag for liquids comprising opposed substantially flat walls having a spout extending outwardly from one of the walls, an evacuation unit extending from said spout into the remote reaches of the interior of the bag in the form of an elongated form member having at least one continuous longitudinal passage with an inner end connected to the spout and being capable of communicating along its length with a body of liquid supplied in the bag and being capable of maintaining the integrity of said passage from the liquid body to the spout as the bag walls collapse about said member by the evacuation of the liquid;

• means for flexibly attaching said elongated member at said inner end of said member in liquid communication with said spout so that said elongated member extends transversely from the spout and lies flat between the opposed walls before the bag is filled and to enable it to swing flexibly therefrom into the body of liquid when the bag is filled, said attaching means comprising a ring which fits into said spout at its inner end and extends axially outwardly therefrom, said ring having radially-inwardly-extending angularly-spaced ribs to prevent sucking of the opposed bag wall into the spout during evacuation of the bag.