An apparatus includes a pen. The pen includes a reservoir configured to store a fluid. The pen also includes a tip configured to transfer the fluid from the reservoir onto a surface of an object during writing. The pen further includes a regulator configured to control a flow of the fluid from the reservoir to the tip. The apparatus also includes the fluid stored within the reservoir. The fluid includes a carrier fluid and particles of an X-Ray opaque material.

A writing, marking and/or drawing liquid for writing implements, especially for capillary pens, which has a viscosity of less than 50 mPas (Brookfield, 20 C., CPE-40 plate-cone), contains a resin mixture dissolved in a solvent matrix having at least one solvent. Wherein the resin mixture contains a first resin in the form of a modified resin ester and/or a dissolved polyester resin and a second resin in the form of a maleate resin and/or a rosin, especially a phenol-modified rosin. Additives are present in the form of at least one fluorosurfactant as wetter and at least one polyethersiloxane copolymer as glidant.

A liquid applying container includes a container main body housing an impregnated body impregnated with a liquid, an applying body having an applying portion for applying liquid, and an applying body holder into which the applying body is inserted and which supports the applying body. The applying body holder includes one or more supporting portions in a rear portion of the applying body holder that are disposed so as to be along a direction of insertion of the applying body and supporting the rear portion of the applying body so as to sandwich or wrap the rear portion of the applying body, the one or more supporting portions having an opening formed at a rear end of the one or more supporting portions, with the one or more supporting portions advancing into the impregnated body or the impregnated body advancing into the one or more supporting portions.

A method produces an applicator for applying liquid or pasty media (1), having a container (3) storing the medium (1), and an application element (5, 13) attached to the container (3) in a usage position such that the application element provides the medium (1) for application outside the container (3) by capillary action. A hose of thermoplastic plastic is extruded and inserted into a mold, forming a container (3) closed at the bottom by expanding the hose in the mold. The container (3) located in the mold is filled with the medium (1). The container (3) is separated from the hose to form an opening accessible at the top side of the container (3). The application element (5, 13) is put into the usage position by inserting the application element through the opening of the hose and fastening the application element (5, 13) while simultaneously creating a closure of the container (3) by moving movable mold parts of the mold.

Lines can be freely varied in thickness, and lines with characteristics such as stops, flicks, and sweeping strokes can be written easily, even with a felt-tip pen, marker pen, or the like. Moreover, a pen-tip does not readily become damaged or worn. A writing implement includes a shaft, an ink supply core such as that of a felt-tip pen or a marker pen, and a core surrounding member that covers the ink supply core. The writing implement is formed capable of contacting a tip of the ink supply core and a tip of the core surrounding member against a writing surface at the same time by using a joint capable of changing a relative positional relationship between the ink supply core and the core surrounding member.

Provided is a writing instrument suited to ballpoint pens, marking pens and the like in which a flow pressure of an ink applied to a pen tip is controlled to a fixed level to prevent an ink direct flow phenomenon reverse flow phenomenon. The above writing instrument comprises a pen tip disposed at a front part of an ink tank, an ink received in the ink tank, a follower filled at a rear part of the ink, and a capillary porous member provided with a capillary force, which is arranged at a space part between a rear part of the follower and a rear end part of the ink tank in a state in which the follower is filled, wherein the pen tip is sealed when a cap is put on the writing instrument.

The present invention relates to a multifunction pen. It integrates the function of a pen, a mechanical pencil, and a highlighter into a single pen body. A user can use it as a pen, a mechanical pencil, or a highlighter as he or she wishes by simply sliding function buttons near one end of the pen body. The unique seal structure of the present invention prevents the highlighter from drying out when the multifunction pen is not in use, which prolongs the lifespan of the highlighter.

Devices have a flexible housing with an inside chamber having a closed and open end. A first chemiluminescent fluid is disposed in a breakable container in the chamber, and a second chemiluminescent fluid is in the chamber. A tip assembly is attached to the housing and includes a nib movably disposed in the body, and a filter element may be positioned within the body to prevent passage of broken particles from the container to the nib tip. A resilient element is used to impose an outward biasing force on the nib. A porous material is disposed over an outer surface of the nib tip and securely held in place. The device is activated for use by bending the housing to break the container causing the first and second chemiluminescent fluids to mix and react, providing a chemiluminescent solution that flows to the tip assembly for dispensing onto a desired surface.

A surgical ink is suitable for medical devices that ensure safety in accordance with the sterilization validation and can be widely distributed on the market, and has biocompatibility and writing property, and a surgical pen has good writing convenience. A surgical pen having radiation resistance includes: a cylindrical shaft body portion having a storage part for a surgical ink; and a pen tip portion for discharging the ink at a distal end of the shaft body portion, and the pen tip portion is made of a synthetic resin, and has a bending strength of 1.0 N or more after irradiation with -rays of 25 kGy to 70 kGy.

In order to provide a writing instrument applicable to an applicator, in which a writing or applying direction can be visually recognized in a broad range at a visual part of a tip, the writing instrument is endowed with a constitution in which a tip is equipped with a porous member as a writing part and a holding member holding the above porous member and having at least one liquid guiding part for feeding an liquid to the writing or applying part, which comprises a relay porous member for feeding a liquid contained in a instrument main body to the liquid guiding part provided in the holding member 55 and in which the holding member is a visible part wherein an area ratio of the above visible part on the front or side face is 40% or more of the tip protruding from a tip part.