| 摘要 |
<p>The present invention provides a capillary wick (24) running through the reservoir so that at least a portion of the capillary wick (24) along the longitudinal axis is in direct contact with the liquid within the reservoir. This allows liquid in the reservoir to convey to a tip (33) with minimal flow resistance. As such, a sufficient amount of liquid is provided to the tip (33), even when the writing instrument is used in quick strokes or for a long duration of time. In a writing position, a capillary storage (20) is above the reservoir so that the capillary storage (20) remains substantially dry without the head pressure affecting the capillary storage (20). The present invention is also directed to providing a porous divider wall (18) between a reservoir that is below the storage, but without a capillary wick. Here, the porous divider wall (18) is used to regulate air flow into the reservoir. Without the capillary wick, the unit costs and the manufacturing costs are substantially reduced.</p> |
