# US 5,699,841 A · Thermos bottle

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- Number: US 5,699,841 A
- Document ID: US5699841A
- Status: Granted
- Kind: A
- Application number: 08/653,005
- Filed: 1996-05-24
- Granted: 1997-12-23
- Earliest claimed: 1996-05-24
- Inventors: Nobuyuki Takagawa
- Web page: https://patentgrep.com/patent/US5699841A

## CPC

- A47J 41/0022: {the stopper comprising two or more pieces movable relatively to each other for opening or closing the dispensing passage}
- A47J: KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES

## 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.

## Claims

### Claim 1

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.

### Claim 2 (depends on 1)

The thermos bottle of claim 1, wherein said plug means further comprises a concave reservoir formed above said curved passage way.

### Claim 3 (depends on 1)

The thermos bottle of claim 1, wherein said plug means further comprises a passage member having an opening disposed to be opposite said spout.