Fountain pen cartridge
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 7, 1983
Issued Date -
N/A
app pub date -
Jun 26, 1981
filing date -
Apr 22, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention relates to an improvement in a fountain pen in which the fountain pen is provided with a writing point feed bar and a casing for supporting the writing mechanism, there being a partition located adjacent to the feed bar and having a cylindrical boss extending away therefrom. The cartridge is provided with a double lip interior open end which is adapted to fit over the boss and conduct the ink into the bore that extends through the boss that communicates with the feed bar. The tapered nose end of the cartridge snugly fits into the bore of the casing adjacent the boss that communicates with the feed bar. This not only insures that the lip sealing is forced radially inward and is not disturbed, by also insures that the end of the cartridge engages the partition wall for sealing and the interior wall of the casing for additional sealing.
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