Refillable free ink writing instrument, kit comprising such a writing instrument, and method thereof
AssigneeSociete BIC
InventorsArnaud Bez, Etienne Roudaut
Life of this patent
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Abstract
A refillable free ink writing instrument including a body having a rear end, a front end and an ink reservoir disposed between the rear end and the front end, a writing tip mounted on the front end and a plug mounted on the rear end, wherein the plug is configured to close an opening in fluid communication with the ink reservoir, the plug being configured to be removable from the rear end to refill the ink reservoir with water and concentrated ink refill.
Claims17
A refillable free ink writing instrument comprising a body having a rear end, a front end and an ink reservoir disposed between the rear end and the front end, a writing tip mounted on the front end and a plug mounted on the rear end, wherein the plug is configured to close an opening in fluid communication with the ink reservoir, the plug being configured to be removable from the rear end to refill the ink reservoir with water and concentrated ink refill, wherein the opening is provided with a sealing membrane having one or more cuts configured to allow elastic deformation of the sealing membrane when a predetermined pressure is applied thereto, and the sealing membrane is configured to adopt to states, a rest state in which the membrane prevents ink from flowing out of the ink reservoir and a working state in which the membrane allows introduction of water and of the concentrated ink refill into the ink reservoir.
A refillable free ink writing instrument comprising a body having a rear end, a front end and an ink reservoir disposed between the rear end and the front end, a writing tip mounted on the front end and a plug mounted on the rear end, wherein the plug is configured to close an opening in fluid communication with the ink reservoir, the plug being configured to be removable from the rear end to refill the ink reservoir with water and concentrated ink refill, wherein the plug comprises a portion configured to be in fluid contact with the ink reservoir, the portion comprising a cavity configured to store the concentrated ink refill, wherein the concentrated ink refill comprises a powder and/or one or more solid grains or granules, and the cavity is closed by a water-soluble membrane seal.
A refillable free ink writing instrument comprising a body having a rear end, a front end and an ink reservoir disposed between the rear end and the front end, a writing tip mounted on the front end and a plug mounted on the rear end, wherein the plug is configured to close an opening in fluid communication with the ink reservoir, the plug being configured to be removable from the rear end to refill the ink reservoir with water and concentrated ink refill, wherein the opening is provided with a cartridge receiving portion, the cartridge receiving portion comprising an opening portion and the plug comprises a pushing portion configured to move toward the opening portion of the cartridge receiving portion when mounting the plug onto the rear end.
Dependencies are inferred from the claim text.