Filling system for a fountain pen
AssigneeMontblanc-Simplo GmbH
InventorsThilo Wagner, Jörg Dickopp
Life of this patent
Estimating the term…
Abstract
A filling system for a fountain pen includes a pump unit, an air channel connected to the pump unit and to a first connection for connecting to the fountain pen, and an ink channel separate from the air channel and having an immersion end for immersing in ink and which is connected to a second connection for connecting to the fountain pen. The pump unit is designed to introduce a specified air volume into the air channel with positive pressure in order to flush ink out of the fountain pen and subsequently apply a negative pressure to the air channel such that a specified ink volume is suctioned out of the ink channel into the fountain pen.
Claims15
A filling system for a fountain pen, comprising:
- a pump unit attachable to an ink container having an ink volume;
- an air channel connected to the pump unit and terminating at a first connection configured to connect to the fountain pen;
- and
- an ink channel separated from the air channel, the ink channel having immersion end for immersing into the ink volume and a second connection opposite the immersion end configured to connect to the fountain pen;
- wherein the pump unit is operable to introduce a first air volume into the air channel with a positive pressure for flushing ink out of the fountain pen, and to evacuate a second air volume from the air channel with a negative pressure for drawing a predetermined volume of ink out of the ink channel and into the fountain pen.
A refillable writing instrument system, comprising:
- a filling system having a pump unit attachable to an ink container having an ink volume, an air channel connected to the pump unit and terminating at a first connection configured to connect to the fountain pen, an ink channel separated from the air channel, the ink channel having immersion end for immersing into the ink volume and a second connection opposite the immersion end configured to connect to the fountain pen, wherein the pump unit is operable to introduce a first air volume into the air channel with a positive pressure for flushing ink out of the fountain pen, and to evacuate a second air volume from the air channel with a negative pressure for drawing a predetermined volume of ink out of the ink channel and into the fountain pen;
- and
- a fountain pen having an ink tank with a first section and a second section, a coupling arrangement in fluid communication with the first section and the second section, wherein the coupling arrangement is connectable to the first connection to establish a fluid connection between the first connection and the first section and is connectable to the second connection to establish a fluid connection between the second connection and the second section.
Dependencies are inferred from the claim text.