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US 8,985,836 B2Granted
Liquid stirring device
AssigneeSeiko Epson Corporation
InventorShohei Shiono
Life of this patent
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Abstract
A liquid supply device according to the invention includes a container which is filled with a liquid from a liquid storage portion, and the container includes a bottom surface portion, an upper surface portion, and a stirrer which moves in the bottom surface portion and stirs the liquid. The relationship between a height Ht in the vertical direction of a central portion in the container and a height Hb in the vertical direction of the stirrer satisfy the Expression: 0.40×Ht≦Hb≦0.90×Ht.
Claims6
A liquid stirring device comprising:
- a liquid storage portion in which a liquid containing a component which may precipitate is stored;
- a container to which the liquid flows from the liquid storage portion;
- a stirrer which is housed in the container and stirs the liquid;
- and
- a bottom surface portion which constitutes the interior of the container and in which the stirrer moves,
- wherein the relationship between a height Ht in the vertical direction of a central portion in the container and a height Hb in the vertical direction of the stirrer satisfies the following Expression 1:
- 0.40×Ht≦Hb≦0.90×Ht Expression 1, and
- wherein the component is contained at a predetermined concentration in the liquid stored in the liquid storage portion, and the relationships between a height Hi in the vertical direction of precipitates of the component which is contained in the liquid in the container, Ht, and Hb satisfy the following Expressions 2-1 and 2-2:
- Hi÷Ht≦0.26 Expression 2-1
- Hi÷Hi≦Hb≦0.90x(Ht−Hi) Expression 2-2.
7 more elements
Dependencies are inferred from the claim text.