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US 2006/0049952 A1Published application
Warning device for container to indicate waterless condition
OwnerChin-Lai Suinventor
Life of this patent
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Abstract
A warning device for a container includes a photo-audio drive circuit including a photo-audio IC (integrated circuit), at least one light emitting member connected to the photo-audio IC, a loudspeaker connected to the photo-audio IC, and two exposed metallic contacts each connected to the photo-audio IC. Thus, the warning device provides a photo-audio effect to notify a user that the container is waterless or the water level of the container is under a determined height, so that the user can replenish the water of the container.
Claims7
A warning device for a container, comprising a photo-audio drive circuit including:
- a photo-audio IC (integrated circuit);
- at least one light emitting member connected to the photo-audio IC;
- a loudspeaker connected to the photo-audio IC;
- and
- two exposed metallic contacts each connected to the photo-audio IC.
2 more elements
Dependencies are inferred from the claim text.