Liquid applicator
OwnerXingfu Zhou, Liping Wanginventors
Life of this patent
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Abstract
A liquid applicator is described. The liquid applicator includes an applicating head, a buffer in communication with the outside air, a gas-liquid exchanger, and a reservoir supplying a liquid to the gas-liquid exchanger. The gas-liquid exchanger has a wick, a liquid sealing tube covering on the outer peripheral wall of the wick, and a gas-liquid channel disposed between the wick and the liquid sealing tube; the buffer covers on the outer peripheral wall of the liquid sealing tube, and capillary pressure of the liquid sealing tube is greater than capillary pressure of the buffer by 30% or more. The liquid applicator can effectively control the release of a liquid. It can prevent the liquid from leaking out. It features a simple structure, resulting in smooth application and easy manufacturing.
Claims20
A liquid applicator comprising:
- an applicating head;
- a buffer in communication with outside air;
- a gas-liquid exchanger;
- and
- a reservoir supplying a liquid to the gas-liquid exchanger;
- wherein the gas-liquid exchanger comprises a wick having an outer peripheral wall, a liquid sealing tube covering the outer peripheral wall and a gas-liquid channel disposed between the wick and the liquid sealing tube;
- wherein the buffer covers the outer peripheral wall of the liquid sealing tube;
- wherein capillary pressure of the liquid sealing tube is larger than capillary pressure of the buffer.
Dependencies are inferred from the claim text.