Collapsible Bottle With Flow Channels

摘要

A collapsible bottle with a channelway provided in a side wall which, in collapsed conditions of the bottle, the channelway becomes engaged with opposed portions of the side wall and define a flow passageway therethrough toward a discharge opening at one end of the bottle and a closed other end of the bottle.

主权项

1. A collapsible bottle having a first end and a second end;
the bottle having an enclosed cavity defined between the first end and the second end and an encircling side wall bridging between the first end and the second end, the side wall including a front wall and a rear wall opposed to the front wall, a discharge outlet at the first end, wherein the bottle is collapsible such that when vacuum conditions are applied to the outlet, the bottle collapses with the front wall and the rear wall drawn towards each other and into engagement with each other, a channelway provided in the front end wall, the channelway defining a flow channel which is open toward the rear wall between the first end and the second end, wherein during collapse of the bottle when the front wall and the rear wall are drawn into engagement, the rear wall engages the front wall to bridge the flow channel and a flow passageway is defined between channelway of the front wall and the rear wall permitting fluid flow therethrough between the first end and the second end.