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Drinking vessel having a mouthpiece with a flexible portion

  • US 6,745,915 B2
  • Filed: 08/14/2001
  • Issued: 06/08/2004
  • Est. Priority Date: 02/16/1999
  • Status: Expired due to Term
First Claim
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1. A drinking vessel comprising a vessel body, and a cover having a mouthpiece, the mouthpiece comprising a flexible strip having side portions and an end portion wherein an outlet aperture of the strip is disposed in the end portion, the vessel further comprising a seal element against which the strip seals to close the outlet aperture in a relaxed condition, the strip being adapted to disengage the seal element to open the outlet aperture in a flexed condition, wherein the mouthpiece further comprises rigid support parts between which the flexible strip is provided and that the flexible strip flexes into said flexed condition when pressure is applied to said rigid support parts.

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