Liquid-ink writing instrument having a reservoir fitted with a system to prevent loss of priming
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United States of America Patent
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Feb 2, 1999
Grant Date -
N/A
app pub date -
Aug 1, 1997
filing date -
Aug 2, 1996
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A writing instrument is provided, including a writing tip, a reservoir containing a liquid ink, and a capillary transfer rod extending from a first end to a second end of the reservoir. The capillary transfer rod transfers the liquid ink from the reservoir to the writing tip. A capillary element having an orifice is slidably mounted around the capillary transfer rod so as to move freely in the reservoir. An outside edge of the capillary element comes into the immediate vicinity of an inside wall of the reservoir in such a manner that the capillary element comes substantially flush with an inside wall of the reservoir as it slides along the transfer rod.
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