Micro motion poppet valve assembly for delivery of ink with large pigment particles to a writing nib and writing instrument comprising same
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United States of America Patent
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Jun 9, 2015
Grant Date -
Jul 4, 2013
app pub date -
Dec 30, 2011
filing date -
Dec 30, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A micro motion poppet valve for a writing instrument provides delivery of ink with large pigment particles to a porous writing nib with minimal nib movement and relatively light actuation forces. The micro motion poppet valve includes a nib connected to a valve stem, the valve stem being connected to a valve plug. A valve body is integrally formed with a biasing element, which biases the valve stem towards a closed position. When a user presses the nib against a writing surface the valve plug moves away from a raised valve seat located on the biasing element to allow ink to flow from an ink reservoir to the nib.
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