Universal refill mechanism and method
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United States of America Patent
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-
Jul 20, 2004
Grant Date -
Jan 22, 2004
app pub date -
Jul 17, 2002
filing date -
Jul 17, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A mechanism for automatically adjusting the chamber length in a writing instrument to accommodate refills of different lengths. The mechanism comprises at least first and second elements operably engaged with each other. When contacted by a refill, the second element automatically moves from a first position associated with a first chamber length to a second position associated with a second chamber length. A biasing member may releasably hold the second element in the first position. In one embodiment third element is fitted within the second element, and is operably and movably engaged with the first and second elements. When contacted by a refill, the third element automatically moves from a first position associated with a first chamber length to a second position associated with a second chamber length. A method of using an automatically-adjusting refill seat mechanism is also disclosed.
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