Fountain pen
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United States of America Patent
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Apr 22, 2014
Grant Date -
Mar 31, 2011
app pub date -
May 7, 2009
filing date -
May 20, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
An improved fountain pen (1) comprises a hollow barrel (2) with a longitudinal central axis of extension (X), a nib (3) located at a first longitudinal end (2a) of the barrel (2), an ink reservoir (4) located inside the barrel (2) and designed to feed the ink to the nib (3), a piston (5) able to move axially along the central axis (X) to create a vacuum inside the ink reservoir (4); the ink reservoir (4) also comprising a sac (6) made of deformable material.
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