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.

Provide is a direct liquid type writing-brush pen that is equipped with a valve mechanism; and with which the ink tube is of replaceable cartridge type, and the writing brush tip is always impregnated with an appropriate amount of ink while the ink leakage being suppressed, whereby an excellent feeling of writing can be always given. A direct liquid type writing-brush pen, including a barrel, which holds a writing brush tip unit at the distal end part thereof; an ink cartridge, which is slidably and detachably fitted into the barrel from the basal end side thereof; a cap, which covers the writing brush tip unit; and a stopper, which is fitted to the basal end part of the barrel to slidably support the basal end part of the ink cartridge, which is protruded from the basal end side of the barrel, wherein, in the distal end part of the ink cartridge, a valve mechanism, which accommodates a valve core in a valve seat, is incorporated; in the valve seat, the distal end part of the valve core is removably connected to the basal end part of a relay core, which constitutes the writing brush tip unit; and on the circumferential face of a smaller diameter part of the valve seat, a sealing strip is formed.

Provide is a direct liquid type writing-brush pen that is equipped with a valve mechanism; and with which the ink tube is of replaceable cartridge type, and the writing brush tip is always impregnated with an appropriate amount of ink while the ink leakage being suppressed, whereby an excellent feeling of writing can be always given. A direct liquid type writing-brush pen, including a barrel, which holds a writing brush tip unit at the distal end part thereof; an ink cartridge, which is slidably and detachably fitted into the barrel from the basal end side thereof; a cap, which covers the writing brush tip unit; and a stopper, which is fitted to the basal end part of the barrel to slidably support the basal end part of the ink cartridge, which is protruded from the basal end side of the barrel, wherein, in the distal end part of the ink cartridge, a valve mechanism, which accommodates a valve core in a valve seat, is incorporated; in the valve seat, the distal end part of the valve core is removably connected to the basal end part of a relay core, which constitutes the writing brush tip unit; and on the circumferential face of a smaller diameter part of the valve seat, a sealing strip is formed.

The present invention relates to a rotary pressing cosmetic pen includes a pen tube, a material assembly, a pressing assembly and a discharging assembly; the pressing assembly includes a cylinder, a button cover, an outer ring and an inner ring; the cylinder rotately connects to the lower end of the pen tube; the outer ring is fixed in the cylinder; the button cover is inserted into the outer ring and stucked therein along the circumferential direction of the outer ring; one end of inner ring is inserted between the outer ring and the button cover, the other end of inner ring is inserted into the lower end of the pen tube and stucked therein along the circumferential direction of the pen tube; the inner ring is also provided with spiral grooves; the button cover is provided with clasps inserting into the spiral grooves and sliding therein.

The present invention relates to a rotary pressing cosmetic pen includes a pen tube, a material assembly, a pressing assembly and a discharging assembly; the pressing assembly includes a cylinder, a button cover, an outer ring and an inner ring; the cylinder rotately connects to the lower end of the pen tube; the outer ring is fixed in the cylinder; the button cover is inserted into the outer ring and stucked therein along the circumferential direction of the outer ring; one end of inner ring is inserted between the outer ring and the button cover, the other end of inner ring is inserted into the lower end of the pen tube and stucked therein along the circumferential direction of the pen tube; the inner ring is also provided with spiral grooves; the button cover is provided with clasps inserting into the spiral grooves and sliding therein.

A liquid eyeliner pen having a liquid storage function includes a brush sleeve having a brush sleeve body. At least one air inlet hole extending along an axial direction of the brush sleeve body is configured on the brush sleeve body at a position close to the front shaft end thereof in a through manner. The front side of the air inlet hole is exposed outside a brush sleeve base. At least one first air vent extending along the axial direction of the brush sleeve body is further configured on the outer layer sidewall of the brush sleeve body. A front side of the first air vent intercommunicates with the air inlet hole, a rear side of the first air vent intercommunicates with a second air vent on the diverter base. At least one liquid storage groove unit is configured on the inner layer sidewall of the brush sleeve body.

A liquid eyeliner pen having a liquid storage function includes a brush sleeve having a brush sleeve body. At least one air inlet hole extending along an axial direction of the brush sleeve body is configured on the brush sleeve body at a position close to the front shaft end thereof in a through manner. The front side of the air inlet hole is exposed outside a brush sleeve base. At least one first air vent extending along the axial direction of the brush sleeve body is further configured on the outer layer sidewall of the brush sleeve body. A front side of the first air vent intercommunicates with the air inlet hole, a rear side of the first air vent intercommunicates with a second air vent on the diverter base. At least one liquid storage groove unit is configured on the inner layer sidewall of the brush sleeve body.

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.

An applicator includes a partition wall for partitioning between a storage chamber and a reservoir chamber, an application body that allows application of a liquid stored in the storage chamber, a relay member that transfers the liquid stored in the storage chamber passing through the partition wall toward the application body, a gas-liquid exchanging section formed at the partition wall for air-liquid exchanging with the liquid stored in the storage chamber, an occluding body that is disposed in the reservoir chamber, and in contact with the relay member for occluding the liquid, and a movement prevention section disposed at the relay member and/or the occluding body for preventing movement of the liquid held in the occluding body to the relay member.