Societe BIC has filed a patent for a refillable free ink writing instrument. The instrument includes a body with an ink reservoir, a writing tip, and a plug to close the reservoir. The plug can be removed from the rear end to refill the reservoir with water and concentrated ink refill. GlobalData’s report on Societe BIC gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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Refillable free ink writing instrument with removable plug for refilling
A recently filed patent (Publication Number: US20230311557A1) describes a refillable free ink writing instrument that offers a convenient and efficient way to refill ink. The instrument consists of a body with a rear end, a front end, and an ink reservoir located between them. A writing tip is mounted on the front end, while a plug is mounted on the rear end. The plug is designed to close an opening that connects to the ink reservoir, and it can be removed to refill the reservoir with water and concentrated ink.
The plug in this writing instrument has a portion that comes into contact with the ink reservoir. This portion contains a cavity that can store the concentrated ink refill. The concentrated ink refill can be in the form of solid grains or granules, and the cavity is closed by a grid. Alternatively, the concentrated ink refill can be a powder or a combination of liquid, powder, solid grains, or granules, and the cavity is closed by a water-soluble membrane seal or a breakable membrane seal. In another embodiment, the cavity is closed by a movable cover.
The opening in the instrument, which connects to the ink reservoir, is equipped with a sealing membrane. This membrane has one or more cuts that allow it to deform elastically when a specific pressure is applied. The sealing membrane can be in two states: a rest state where it prevents ink from flowing out of the reservoir and a working state where it allows the introduction of water and concentrated ink refill into the reservoir. The plug includes a pushing portion that can push a solid concentrated ink refill through the membrane when mounting the plug onto the rear end.
The patent also describes various kits that include the refillable free ink writing instrument and one or more concentrated ink refills. These refills can be packed in different types of pouches, such as hydrosoluble pouches, porous pouches, meshed pouches, cages, or capsules closed by a grid, a breakable membrane seal, a water-soluble membrane seal, or a movable cover. Additionally, the kit may include additional plugs packed in air-tight pouches.
The patent further includes a method for refilling the refillable free ink writing instrument. The method involves removing the plug, refilling the reservoir with water, refilling the reservoir with concentrated ink, and mounting the plug or a new plug onto the rear end.
Overall, this patent presents an innovative refillable free ink writing instrument that offers a practical solution for refilling ink and provides various options for the type of concentrated ink refill and packaging.
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