Matches 1 - 26 out of 26


Match Document Document Title
8113732 Direct liquid-writing instrument  
The present invention provides a direct liquid-writing instrument without ink leakage from the pen-tip even after a long period of use. Specifically, it provides a direct liquid-writing instrument...
8096725 Writing implement comprising a device for venting the reservoir  
A writing implement that includes an ink reservoir, a writing tip fluidically connected to the reservoir and through which the ink emerges during a use of the implement, and a reservoir-venting...
7163350 Liquid container  
In a liquid container, it is made possible to store liquid that is overflowed by fluctuations in atmospheric pressure and thereby to prevent liquid leaks, and the whole quantity of the stored...
7073967 Writing instrument  
A writing instrument can prevent ink stored in an ink intake retainer body from flowing toward an air passage due to volume expansion, shock, etc., of the ink, thereby preventing the stoppage of...
7044675 Leak resistant writing instrument  
A writing instrument containing an ink reservoir, a writing medium, and a writing tip. Advantageously, a superabsorbent polymer can be associated with any writing instrument element or component,...
6702498 Writing implement  
A writing implement having a feeder core for feeding ink in an ink tank to a pen tip and an ink collector in which a plurality of comb-tooth like elements formed with an air-liquid exchange groove...
6517273 Free-ink type writing instrument  
A free-ink type writing instrument having a temporary ink collector having a sectionally combed configuration, between an ink tank chamber and an writing tip and inside the front barrel, wherein...
6474894 Writing utensil with container for receiving temporarily writing liquid  
A writing utensil has a container for receiving temporarily a writing liquid oversupplied from a reservoir. A plurality of liquid staying pieces are formed on the outer periphery of the container...
6398442 Writing instrument  
A free-ink collector type writing implement includes ink (12) having a low viscosity of 2 to 100 mPa S, a collector (6) having both an internal pressure regulating function and an ink guiding...
6340259 Direct-feed type writing implement  
A direct-feed type writing implement includes: a point assembly having a writing point at the tip thereof; an ink tank directly storing a relatively low viscosity ink having a viscosity of 2 to...
6247866 Feeding ducts for writing liquids in fountain pen nibs, and a method of producing same  
A feeding duct for writing liquid in fountain pen nibs and method of producing same, wherein the duct includes a substantially cylindrical element having multiple circumferential grooves creating...
5951187 Fluid flow regulator and writing pen  
A fluid flow regulator for storing and returning excess fluid flow resulting from changes in atmospheric pressure and ambient temperature. The fluid flow regulator includes a continuous, uniform...
5927886 Direct ink storaging type writing implement  
A longitudinal groove which allows a number of annular grooves formed on the outer peripheral surface of an ink storage body to communicate with an ink chamber is cut halfway into the thickness of...
5556215 Writing instrument with overflow chamber  
A writing instrument has an ink reservoir, a nib and a feeder which temporarily stores ink which is pushed out of or pulled into the ink reservoir. The ink reservoir communicates with the nib...
5372445 Writing unit for a cartridge fountain pen  
A writing unit for a cartridge fountain pen comprising an ink feeder 3, a writing nib 1 mounted to the forward end portion of the ink feeder, and a gripping piece 2 enclosing the rearward end...
5102251 Supply system for devices that operate with the aid of capillary forces and are used to apply liquids  
A supply system is provided for a device that operates with capillary forces and is used to apply liquids. The system includes receptacles that accommodate the liquid and are closed off relative...
4930921 Tubular writting pen with superposed pressure equalization chambers  
Tubular writing pens of the stylographic type, as used by artists and technical draftsmen. Particularly a tubular writing pen having superposed inner and outer ink pressure equalization chambers...
4923318 Ink feed for a fountain pen  
An ink feed for a fountain pen has a main body provided with radial ink holding chambers, the rear end of which can be connected with the ink reservoir of a fountain pen, and which has on the nib...
4753546 Pressure balanced stylographic pen  
Improvements in stylographic technical writing pens, particularly through a venting channel design which provides for a pressure balancing, or equalization, between an ultimate ink reservoir...
4645367 Writing implement venting system  
A balanced ink feeding system comprises a lamellate body connected to a retaining member holding a writing element for feeding ink to the writing element, the retaining member with the lamellate...
4556336 Pen core for writing instrument  
A pen core for a writing instrument, particularly, for use in a recorder in which writing must be continuously carried out over long periods using a relatively small ink supply. The instrument has...
4509876 Writing instrument with overflow chamber and return to supply  
A writing instrument of an extremely simple structure in which stored ink previously extruded upon increase of the internal pressure of an ink chamber is subsequently sucked up by decrease of the...
4269528 Fountain pen with specific tubular nib  
A tubular nib having a beak-shaped section at one end of a tube, a slit formed in the beak-shaped section, and a slit-widening inhibiting section having a radius of curvature larger than that of...
4207012 Ink compensating chamber for scriber  
A capillary writing pen of the type having an expansion or compensation chamber intermediate the ink reservoir and ambient air. The expansion chamber is improved such that inadvertent flowing of...
4095907 Cover for scriber  
A capillary writing pen of the type having an expansion or compensation chamber intermediate the ink reservoir and ambient air. The expansion chamber is improved such that inadvertent flowing of...
3521969 FRONT END ASSEMBLY FOR A FOUNTAIN PEN  

Matches 1 - 26 out of 26