Reusable foldable drinking straw in storage case

  • US 10,123,641 B1
  • Filed: 05/23/2018
  • Issued: 11/13/2018
  • Est. Priority Date: 10/30/2017
  • Status: Active Grant
First Claim
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1. A reusable drinking straw foldable for storage, the drinking straw comprising:

  • a rigid external tube formed of a plurality of tubular segments, said external tube having a proximal end, an opposite distal end, a hollow interior and a central longitudinal axis passing through said ends, said hollow interior being accessible through said ends and having an interior diameter, each of said tubular segments configured to be coupled to at least another one of said tubular segments when positioned adjacent to one another along the central longitudinal axis to form said external tube; and

    a flexible internal tubing having a proximal end, an opposite distal end, and a passageway through said ends of said internal tubing, said internal tubing being formed of an elastic material for conducting liquid through said passageway and being impermeable to liquids, said internal tubing having an outer diameter and an inner diameter, said outer diameter being less than said inner diameter of said external tube, said internal tubing being positioned within said external tube with said proximal and distal ends of said internal tubing proximate to said proximal and distal ends, respectively, of said external tube to conduct liquid therethrough,wherein said drinking straw is in an extended configuration when at least two of said tubular segments are coupled together to form said rigid external tube with said flexible internal tubing therethrough, said flexible internal tubing being under tension within said external tube to maintain said tubular segments coupled together,wherein said drinking straw is in a folded configuration when at least two of said tubular segments are uncoupled and moved apart along said flexible internal tubing by stretching said internal tubing and folding said internal tubing between said at least two tubular segments.

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