Structure of a hot water bottle

Details Structure of a hot water bottle Structure of a hot water bottle

1999-05-24

2001-01-09

Walberg, Teresa (Department: 3742)

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

C220S062120, C220S062140, C099S323300

Reexamination Certificate

active

06172340

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a hot water bottle, and especially to a hot water bottle with a novel structure wherein the boiling water is heated electrically, the hot water bottle has a simple structure, thus the user may use the hot water bottle more safely.
2. Description of the Prior Art
The conventional hot water bottle is formed by a bottle bottom, a bottle body and a bottle cover. The bottle bottom is installed with proper heating and water outlet devices for heating water and outputting water by pressing a bottom. However, the conventional hot water bottle is made of metal or plastic or other opaque materials. Only a longitudinal transparent tube is formed on one side thereof so that users may view the level of mater through the tube. However, the view area of the tube is very thin, thus user often needs to rotate the hot water bottle or squat down for viewing the level clearly. Moreover, due to the vapor in the bottle, capillary effect, or unbalance of pressure, thus the level in the tube is not the real level of the water within the bottle.
Moreover, since the general hot water bottle has a smooth surface and has no effect of heat isolation. Thus, the temperature distribution of the surface thereof is not uniform, thus, if a user touches the bottle body carelessly, he (or she) will be probably harmed. Even the hot water will pour out, thus a great potential danger is existed.
SUMMARY OF THE INVENTION
Accordingly, the object of the present invention is to provide an improved structure of hot water bottle comprising a bottle bottom, a bottle body and a bottle cover. The bottle body is made of transparent glass. The level of water can be seen clearly from outside. They, it is needless to rotate the bottle body or to move near the bottle body. Moreover, the level will not be judged by mistake. Thus, it is more convenient than the prior art.
Another object of the present invention is to provide an improved structure of a hot water bottle, wherein other than being formed by transparent glass, a plurality of protecting strips are distributed on the surface of the bottle body with proper distribution and material so as to locally increase the width of the bottle body and thus a temperature grading for heat isolation is formed. Accordingly, the user's hand is protected from being harmed by high temperature.
A further object of the present invention is to provide an improved structure of a hot water bottle, especially, the bottle body is a single means integrally made of glass. Thus, the structure thereof will more simple than the conventional hot water bottle, and thus it can be made easily and may be mass-produced with a lower cost.
The present invention will be better understood and its numerous objects and advantages will become apparent to those skilled in the art by referencing to the following drawings in which:


REFERENCES:
patent: 3549861 (1970-12-01), Trachtenberg et al.
patent: 5762230 (1970-12-01), Policappelli

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