A fluid application device including a reservoir intended to contain a free fluid and a fluid delivery device, wherein the reservoir is sealed by a valve having a self-healing material. The fluid application device includes a tubular means for piercing the valve and for simultaneously placing fluid from the reservoir in communication with the fluid delivery device.

A fluid application device including a reservoir intended to contain a free fluid and a fluid delivery device, wherein the reservoir is sealed by a valve having a self-healing material. The fluid application device includes a tubular means for piercing the valve and for simultaneously placing fluid from the reservoir in communication with the fluid delivery device.

A writing implement is configured to dispense material onto a work surface. The writing implement includes a body having a first end, a second end, and an inner surface. The writing implement also includes a nib coupled to the first end. The nib is configured to allow the material to be dispensed onto the work piece. The writing implement further includes a pressure regulating assembly coupled to the body. The pressure regulating assembly and the inner surface define a cavity configured to hold the material. The pressure regulating assembly is moveable relative to the body in response to a pressure change within the cavity.

A writing instrument 2 includes a pen tip mechanism 20, an ink tank 40, an ink induction mechanism 50, and a regulator mechanism 60. The ink tank 40 includes first and second ink tanks 40A and 40B. The pen tip mechanism 20 includes first and second pen tips 20A and 20B. The ink induction mechanism 50 includes first and second induction cores 50A and 50B. A regulator flow path set around the first induction core 50A and the second induction core 50B is partitioned into first and second regulator flow paths by the regulator mechanism 60. The first and second regulator flow paths are temporary accommodation spaces of inks and circulation spaces for sending air from the induction cores 50A and 50B to the ink tanks 40A and 40B.

A writing instrument 2 includes a pen tip mechanism 20, an ink tank 40, an ink induction mechanism 50, and a regulator mechanism 60. The ink tank 40 includes first and second ink tanks 40A and 40B. The pen tip mechanism 20 includes first and second pen tips 20A and 20B. The ink induction mechanism 50 includes first and second induction cores 50A and 50B. A regulator flow path set around the first induction core 50A and the second induction core 50B is partitioned into first and second regulator flow paths by the regulator mechanism 60. The first and second regulator flow paths are temporary accommodation spaces of inks and circulation spaces for sending air from the induction cores 50A and 50B to the ink tanks 40A and 40B.

An agitatable coloring utensil is an apparatus that spins the tip of a drawing, coloring, or writing utensil as the user is using the drawing, coloring, or writing utensil. The apparatus includes a tubular body, a marking tip, a motor, a portable power source, and at least one user control. The tubular body is the structural housing for the other component of the apparatus and allows the user to have a firm grasp of the apparatus while using the apparatus to write or draw. The motor is used to drive the rotation of the marking tip. The portable power source is used to electrically power the motor and allows the apparatus to be easily transportable by the user. The user control allows the user to either activate, deactivate, or adjust the rotation of the marking tip.

The present invention provides an ink filling tool including: an ink tank having an internal space configured to store a liquid ink; and a cylindrical nozzle having an inner hole communicating with the internal space of the ink tank, the nozzle being insertable into the through hole. The nozzle is configured to be capable of pressing the valve mechanism which is present inside a pen in a state of being inserted into the through hole, and the nozzle has an ink circulating part configured to communicate the inner hole with an outside in a direction orthogonal to the axis of the nozzle.

A writing implement having a pen tip that can achieve excellent ink outflow performance and an increase in the effective area of a viewer portion allowing recognition of the writing direction, relative to the whole pen tip. The writing implement is a writing implement A which includes a pen tip 20 feeding ink from a writing implement body 10 and having a viewer portion through which the writing direction can be recognized, and is characterized in that the pen tip 20 is configured of, a least, a writing part 30 and a holding body 40 having a viewer portion 43, and the holding portion 40 has a sheet-shaped ink feeder 25 formed with slits or bumps on the surface and inside thereof to produce a capillary action.

A writing implement having a pen tip that can achieve excellent ink outflow performance and an increase in the effective area of a viewer portion allowing recognition of the writing direction, relative to the whole pen tip. The writing implement is a writing implement A which includes a pen tip 20 feeding ink from a writing implement body 10 and having a viewer portion through which the writing direction can be recognized, and is characterized in that the pen tip 20 is configured of, a least, a writing part 30 and a holding body 40 having a viewer portion 43, and the holding portion 40 has a sheet-shaped ink feeder 25 formed with slits or bumps on the surface and inside thereof to produce a capillary action.

A multi-function writing implement comprises a pen shaft, a colored pen assembly, and an erasing pen assembly. The colored pen assembly is arranged at one end of the pen shaft. The colored pen assembly includes a cartridge seat, a nib seat, a plurality of colored cartridges, a plurality of relay cartridges, and a plurality of colored ink cotton tubes. The cartridge seat is connected to the pen shaft. One end of the nib seat has a plurality of cartridge slots. The colored cartridges are respectively arranged at the cartridge slots. The relay cartridges are respectively connected to the colored cartridges and arranged in the cartridge seat. The colored ink cotton tubes are respectively connected to the relay cartridges and arranged in the pen shaft and the cartridge in parallel. The erasing pen assembly is arranged at the other end of the pen shaft opposite to the colored pen assembly.