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US 11,390,108 B2Granted
Refill for a writing felt pen
AssigneeSociete BIC
InventorArnaud Bez
Life of this patent
Estimating the term…
Abstract
A refill for a writing felt pen, the refill comprising a deformable pouch and a nib inserted into the deformable pouch, the deformable pouch comprising a mix of dry absorbent polymer, fibers and dry ink.
Claims18
A refill for a writing felt pen, the refill comprising a deformable pouch and a nib inserted into the deformable pouch, the deformable pouch comprising a mix of dry absorbent polymer, fibers and dry ink, wherein the content of dry absorbent polymer in the mix is capable of absorbing all the ink once the dry ink is forming a water-based ink.
A method for refilling a writing felt pen, the method comprising the steps of:
- inserting a refill into a barrel, the refill comprising a deformable pouch and a nib inserted into the deformable pouch, the deformable pouch comprising a mix of dry absorbent polymer, fibers and dry ink;
- and
- dipping the nib into water so as to form a water-based ink and absorb the water-based ink into the dry absorbent polymer, wherein the content of dry absorbent polymer in the mix is capable of absorbing all the ink once the dry ink is forming a water-based ink.
Dependencies are inferred from the claim text.