Embodiments of the present disclosure may include a device for removing a liquid from a container having a depressible valve. The device may include a reservoir for holding the liquid removed from the container. A conduit of the device may include a first end and a second end. The first end may be fluidly coupled to the reservoir while the second end may be coupled to the Depressing the conduit may actuate the depressible valve of the container to provide fluid communication of the liquid from the container, through the conduit, and into the reservoir.

The present invention, in general, describes a refillable writing instrument. The writing instrument may comprise one or more master reservoir, one or more slave reservoir, one or more slave reservoir gate and one or more master reservoir gate. The slave reservoir may have reducing cross-section, facilitating fluid flow towards nib of the writing instrument. The slave reservoir gate may comprise at least one of blocking element, blocking element seat, one or more gates, one or more covers and a combination thereof. The slave reservoir gate provides a connection between the master reservoir and the slave reservoir. Further, the blocking element rests over the blocking element seat due to gravity, restricting return flow of the fluid to the master reservoir. The master reservoir gate facilitates clean, easy and fast refilling of master reservoir using fluid container or fluid nozzle without the need of opening the master reservoir cap.

The present invention, in general, describes a refillable writing instrument. The writing instrument may comprise one or more master reservoir, one or more slave reservoir, one or more slave reservoir gate and one or more master reservoir gate. The slave reservoir may have reducing cross-section, facilitating fluid flow towards nib of the writing instrument. The slave reservoir gate may comprise at least one of blocking element, blocking element seat, one or more gates, one or more covers and a combination thereof. The slave reservoir gate provides a connection between the master reservoir and the slave reservoir. Further, the blocking element rests over the blocking element seat due to gravity, restricting return flow of the fluid to the master reservoir. The master reservoir gate facilitates clean, easy and fast refilling of master reservoir using fluid container or fluid nozzle without the need of opening the master reservoir cap.

A refill friendly pen body that is configured to adapt to a refill cartridge of various dimensional parameters. An adjustment cylinder is adjustably carried within a barrel to adapt the pen body to a length of the refill cartridge. A grip end of the pen body is configured with an internal collet to compressively engage with a forward end of the cartridge across to retain the forward end of the cartridge in a writing position. The pen body may also be provided with a cap to selectively cover and uncover the writing tip.

Provided is a printer including a first ink tank, a second ink tank, a print head, a first photoelectric conversion device provided at a side surface of the first ink tank, and detecting light incident from the first ink tank, a second photoelectric conversion device provided at a side surface of the second ink tank, and detecting light incident from the second ink tank, and a processing unit detecting an amount of ink in the first ink tank based on an output of the first photoelectric conversion device and detecting an amount of ink in the second ink tank based on an output of the second photoelectric conversion device.

The present invention provides devices, systems, and methods for refilling a refillable fluid applicator, such as but not limited to a refillable dry erase marker. The devices, systems, and methods of the present invention advantageously allow the fluid applicator to be refilled quickly, easily, and inexpensively, and provide the benefit of significantly reducing the quantity of solid plastic waste associated with conventional disposable dry erase markers and other fluid applicators.

The present invention provides devices, systems, and methods for refilling a refillable fluid applicator, such as but not limited to a refillable dry erase marker. The devices, systems, and methods of the present invention advantageously allow the fluid applicator to be refilled quickly, easily, and inexpensively, and provide the benefit of significantly reducing the quantity of solid plastic waste associated with conventional disposable dry erase markers and other fluid applicators.

A device for filling cartridges for a writing implement, the device including at least two separate connectors, a system for metering inks and a system for filling a cartridge, each connector being configured to connect a reservoir containing an ink to the cartridge. The invention also concerns an assembly comprising a device as previously defined and a plurality of ink reservoirs, each ink reservoir being connected to a connector of the device and a method for filling a cartridge using such an assembly.

A device for filling cartridges for a writing implement, the device including at least two separate connectors, a system for metering inks and a system for filling a cartridge, each connector being configured to connect a reservoir containing an ink to the cartridge. The invention also concerns an assembly comprising a device as previously defined and a plurality of ink reservoirs, each ink reservoir being connected to a connector of the device and a method for filling a cartridge using such an assembly.

The invention discloses an apparatus for automatically replacing fountain pen refill, and includes a box body, the left and right sides of the box body are respectively provided with a left inner cavity and a right inner cavity, an upper boss is fixedly connected to an inner wall of an upper part of the right inner cavity, and an inner wall of an upper part of the right inner cavity is fixedly connected to a lower boss at the lower left of the upper boss, a grooved wheel device is rotatably connected to the lower boss, a swivel rod device is connected below the swivel device, and a mechanical claw is fixedly connected to the lower part of the swivel device; The invention provides a relatively efficient automatic refill device, and at the same time, it can collect the used refills, which saves the time of refills and disposal of the used refills.