Patent ID: 9572444
Date: 2017-02-21
CPC Classifications: A47G

Claim:
1. Drinking straw comprising: a thermoplastic wall having an elongate container portion; a first liquid permeable closure closing off a first end of the container portion; a second liquid permeable closure closing off a second end of the container portion; at least one effervescent tablet disposed within the container portion such that a clearance is left between the wall and the at least one tablet; a first plurality of hygroscopic filler granules disposed within the container portion between the at least one effervescent tablet and the first liquid permeable closure, and spacing the at least one effervescent tablet from the first end of the container portion and in an amount protecting the at least one effervescent tablet from humidity; and a second plurality of hygroscopic filler granules disposed within the container portion between the at least one tablet and the second liquid permeable closure, spacing the at least one tablet from the second end of the container portion and in an amount protecting the at least one effervescent tablet from humidity, wherein the closures are branched portions each having at least three parallel passages spaced around a longitudinal axis of the drinking straw, which parallel passages are defined by neighbouring recesses formed in the wall and a common inner seam connecting the neighbouring recesses along the longitudinal axis of the drinking straw; and the first plurality and the second plurality of hygroscopic filler granules and the parallel passages being sized to prevent said first plurality and said second plurality of hygroscopic filler granules from passing through the parallel passages of the first and second branched portions.