Ink ball pen

Details Ink ball pen Ink ball pen

B - Operations, Transporting

43

K

B43K 7/12 (2006.01) B43K 5/18 (2006.01)

Patent

CA 2309847

The liquid ink cartridge, which applies on those the pen tip are same direction with its pen clip or has no cap to cover pen tip. Comprise a labyrinth groove feed bar at top, a vacuum valve, a pen tip valve and a valve rod, which go through all to change each own open and close. By pushing or twist action to change valves result as unused state: the pen tip valve close ink path and the vacuum valve opens to breed expansion air. And as writing state: the vacuum valve closed to create vacuum to hold ink in tube and the pen tip valve open ink to pen tips and to air breeder which bleeds through a path to top labyrinth groove feed bar to balance pressure. The same also applies in absorbable material ink cartridge for same type pens.

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