Pressure sensed ink-filled pen
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United States of America Patent
Stats
-
Jun 10, 2003
Grant Date -
N/A
app pub date -
Nov 26, 2002
filing date -
Nov 26, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pressure-sensed ink-filled pen comprises at least a pen tube, a valve, a filler seat and a filler. An ink outlet is formed within the front portion of the pen tube. An U-shape valve made of a relatively soft material is mounted in front of the ink outlet. A filler seat embedding a filler at the front end thereof is received in a flexible relation within the front portion of the pen tube, allowing a longitudinal movement. By pressing the filler and the filler seat at one end to cause another end to open the valve, a pressure-sensed ink-filled pen with proper ink supply is formed.
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