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No-spill drinking products

  • US 6,994,225 B2
  • Filed: 08/05/2003
  • Issued: 02/07/2006
  • Est. Priority Date: 08/05/2002
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • providing a drinking apparatus, said drinking apparatus being a no-spill drinking apparatus provided for a user to drink liquid therefrom and also being provided for preventing spilling of liquid when the user is not drinking from said apparatus;

    said drinking apparatus comprising a flexible material outer wall for the user to place its mouth on to drink liquid from said drinking apparatus, said flexible material outer wall comprising a tip, said outer wall further comprising an outer surface and an inner surface;

    said drinking apparatus further comprising a valve for preventing the spilling of liquid from said apparatus when the user is not drinking from said apparatus, said valve comprising a depression in said flexible material outer wall, said depression comprising an upper component and a lower component, said upper component comprising a tube, said tube comprising a sidewall, said sidewall comprising an outer surface and an inner surface, said outer surface of said sidewall being separated and spaced from said inner surface of said outer wall;

    said lower component of said valve comprising a bottom wall, said bottom wall comprising an upper surface and a lower surface, said upper surface of said bottom wall being a concave surface extending to said inner surface of said sidewall;

    said lower surface of said bottom wall comprising both a curved surface and a flat surface, wherein said flat surface is located in the center of said lower surface, and wherein said curved surface is peripheral to said flat surface;

    said bottom wall comprising an opening extending from said upper surface to said lower surface, and wherein said opening rests in a closed position;

    and wherein said bottom wall bends when the user places its mouth on said outer wall to compress said outer wall, such that liquid can pass through said opening.

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