Writing article having a capillary reservoir with improved ink delivery
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United States of America Patent
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Dec 30, 2008
Grant Date -
May 18, 2006
app pub date -
Jun 6, 2003
filing date -
Jul 26, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A writing instrument having a body, a main reservoir containing ink and housed in said body, a writing head projecting from the front part of said body, and a capillary connector for transferring ink from the main reservoir to the writing head. The instrument has an auxiliary reservoir containing an ink carrier liquid, and an actuator for releasing said liquid from the auxiliary reservoir so that said liquid flows into the main reservoir and expels the ink towards the connector. The carrier liquid contains the ink solvent, in particular water in the case of a water-based ink, and preferably contains all or any of the components of the ink in the main reservoir, whereby the original writing properties of the residual ink carried by the carrier liquid are preserved.
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