The subject disclosure relates to systems, methods, and apparatuses that perform self-erasing writings. In an aspect, the subject disclosure includes deploying a self-erasing material, onto a writing medium, from an apparatus comprising a tip element and a body element. In another aspect, the method includes removal of the self-erasing material on a time-released schedule based on an interaction between a set of environmental conditions and the self-erasing material.

A cosmetic applicator includes a body which includes a tip part and an extension which has a threaded portion. A case has a rotary member threadedly connected to the threaded portion. A contact member is received in the case which has a contact portion located corresponding to the shoulder of the body. A liquid supply unit is axially received in the body and the case, and has a liquid tube, a duct and a guide tube. The liquid tube contacts the contact member. The duct is inserted in the liquid tube and has a passage. A sealing member is removably located at the duct to seal or open the guide tube. A clip is connected to a groove between the case and the body before first use. The clip is removed and the case is rotated to move the sealing member to allow cosmetic liquid to reach the tip part.

Angled fountain pens are provided. A pen includes: a shank; an ink tube; a connector connected to the ink tube and the shank; a feeder connected to the connector; and a nib connected to the feeder. A writing tip of the nib extends through a hole in the feeder. The writing tip is resiliently biased against the feeder and is selectively moveable between a first position in which ink flow between the writing tip and the feeder is prevented and a second position in which ink flow between the writing tip and the feeder is permitted.

The present invention relates to a gel-state content discharging applicator and, more particularly, to a gel-state content, discharging applicator wherein a pressurization button is formed on the lower end of a container such that, when the pressurization button is pressed, an inner container is pressurized, thereby pressurizing an inner container cap, which is coupled to the inner container, and a pump, which is coupled to the inner container cap; as a result, the gel-state content is discharged through a valve of the pump and through a discharge member such that a predetermined mount of gel-state content is always discharged easily; in addition, formation of the pressurization button on the lower end of the container guarantees that, when the container according to the present invention is used for tooth-related products among medications and sanitary aids, the content can be easily applied even to molar parts.

Provided is a writing utensil with a pressurizing mechanism, wherein the cylinder is provided in such a manner that it comes into sliding contact with an outer peripheral part of the valve element and move back and forth, and an inner wall face of the cylinder is provided with a ventilating recess communicating with outside air, and an annular non-pressure contact face positioned on the rear side of the ventilating recess, and when the cylinder moves forward, the valve element is brought into pressure contact with the non-pressure contact face to seal the pressurizing chamber, and when the cylinder moves backward, the valve element is moved forward and separated from the non-pressure contact face such that the ventilating recess communicates with the pressurizing chamber.

A writing instrument may include an upper pen barrel rotatably connected to a lower pen barrel. A spool valve and fluid reservoirs may be housed in the upper pen barrel. A writing tip secured to the lower pen barrel may be in selective fluid communication with the fluid reservoirs. The upper pen barrel may be rotatable relative to the lower pen barrel of the writing instrument.

Delivery systems for delivering compositions with large particles are disclosed herein. For example, writing instrument capable of delivering ink with large pigment particles can include a barrel, an ink reservoir in fluid communication with a nib, and one or more valves or seals for sealing the reservoir when not in use. For example, the writing instrument can include a free-ink reservoir having an agitator disposed on a valve stem.

A writing tool has a pen tube, a capillary unit, and a dispensing unit. The capillary unit is mounted in the pen tube, and is connected to a nib. The dispensing unit is mounted in the pen tube, and has a communicating tube and a pressing segment connected to the communicating tube. The pressing segment has at least one connecting arm connected to the communicating tube. A dispensing interval is formed between the communicating tube and a periphery of the pressing segment. The communicating tube contacts the capillary unit to make the capillary unit form different compression densities via the pressing segment and the dispensing interval, thus facilitating dispensing ink downward easily through the dispensing interval and providing a better occlusion effect to further avoid ink leakage.

A free-ink writing instrument mat include a nib drying delay component to prevent drying out of the end of the nib of the writing instrument that is located in the writing ink tank thereof. The nib drying delay component is locally arranged around the end of the nib in a liquid tight manner and configured to locally retain ink therein so as to keep the nib end in contact with locally retained ink.

A fountain pen with a quick-filling coupling includes a nib assembly, a housing with a main tank and a writing tank formed therein, a rotatable finial at an end of the fountain pen opposite from the nib assembly, and a coupling for placing the housing on an ink feed device. A first sealing unit, arranged between the writing tank and the main tank, can be selectively opened and closed for filling the writing tank via the main tank. A second sealing unit, arranged between the writing tank and the nib assembly, can be selectively opened and closed for supplying ink to the nib assembly. A third sealing unit, arranged between the main tank and the coupling, can be opened and closed for filling at least the main tank. The finial is operably coupled to the pen for controlling the opening state of the first and second sealing units.