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US 5,699,841 AGranted
Thermos bottle
OwnerNobuyuki Takagawainventor
Life of this patent
Estimating the term…
Abstract
A thermos bottle for keeping beverages such as coffee, tea, and Japanese tea in hot or cold state, comprising an inner container inside of an outer container, a plug member fitted to an upward opening of the outer container, and a feeding passage for allowing to feed beverage from outside directly into the container in the plug member, in which the beverage can be directly fed into the container, without having to detach or attach the plug member, with the plug member fitted to the outer container, so that the ease of pouring operation is greatly enhanced.
Claims3
In a thermos bottle comprising:
- an outer container having an opening at a top thereof and a spout formed extending from said opening;
- an inner container having an opening at a top thereof and disposed inside of said outer container with said opening thereof aligned with said opening of said outer container;
- and
- plug means positioned to fit within said aligned openings of said inner container and said outer container;
- the improvement comprising:
- said plug means comprising a curved passage way extending from said plug means and into said inner container, said curved passage way being constructed so that a curve thereof curves away from said spout so that a liquid is fed directly from outside the thermos bottle into said inner container so that a liquid contained within said inner container cannot flow back through said passage way when said thermos bottle is tilted to pour liquid through said spout from said inner container;
- wherein
- said plus means further comprises an inner lid for closing said opening of said inner container when said thermos bottle is in a vertical position;
- and wherein
- said inner lid is moved by said liquid so as to provide an opening in said opening of said inner container when said thermos bottle is tilted to pour liquid from said inner container through said spout.
7 more elements
Dependencies are inferred from the claim text.