Matches 1 - 38 out of 38


Match Document Document Title
9033607 Fountain pen  
A fountain pen comprises a hollow barrel such as can be held by a user, a nib stably attached to one end of the hollow barrel, also an ink cartridge housed internally of the hollow barrel and...
8475071 Conical nib and writing instrument incorporating the same  
A nib of a writing instrument is made of a carbon-resin mixture obtained by mixing a plastic material with carbon fiber. An ink feed core is provided with a nib cover. The nib cover is disposed on...
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...
7938592 Writing implement  
A refill of a low viscosity water-based ink ballpoint pen is provided with a housing, a pen tip attached to a front end of the housing, an ink tank (4) formed inside the housing, an ink guide...
7223037 Production processes for writing instrument and ink occlusion body  
Provided is a writing instrument comprising an ink tank, an ink holder which can hold an ink, a pen tip, an ink guiding part for guiding the ink in the ink tank to the pen tip and an ink occlusion...
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...
6769827 Collector type writing implement  
In a free-ink type collector writing instrument, a collector (5) is formed with a passage hole (10) for providing commutation between the interior and the outside air so as to prevent the point...
6755587 Direct-feed ballpoint writing implement  
A direct-feed ballpoint writing implement includes a barrel internally provided with an ink tank, a grooved member placed in a front part of the barrel and provided with a groove for guiding air...
6652177 Conical nib, method of manufacture of the same, and ceramic composite conical nib  
A highly durable conical nib is provided which also realizes a significant improvement in a nib productivity and a significant cost reduction. The conical nib comprises: a plurality of separated...
6648539 Free ink writing instrument with nano technology  
A writing instrument has a housing containing an ink reservoir. The writing instrument further has a writing nib in communication with one (or both) end of the ink reservoir by an ink induction...
6619871 Collector type writing instrument  
A collector type writing instrument which is formed with a sectioning portion for substantially separating its ink tank and a snorkel having a tubular vent portion for establishing air...
6582144 Writing implement  
A writing implement for preventing ink from leaking out from a front end of a tip by absorbing much of a change in pressure inside an ink tank, the implement being a direct liquid type writing...
6536976 Writing instrument  
The object is to provide a writing instrument in which a large-diametric ink retaining portion with narrow grooves in width and still capable of securing a large enough air channel can be formed...
6499902 Writing and metering device  
Writing and metering device with an ink supply chamber (22), an ink guide with a capillary ink regulator (20) and with a ventilation channel with a semi-permeable seal (30), a first non-capillary...
6390711 Liquid ink writing pen  
An inexpensive writing pen for low viscosity liquid inks and formed with an internal ink reservoir and a capillary system for admitting air into the reservoir. The ink reservoir is formed directly...
6382862 Application liquid reservoir  
An application liquid reservoir (collector) reserves application liquid in the vicinity of an application liquid guide that is interposed between an application liquid cartridge and an applicator....
6371676 Collector for a writing implement  
A collector for adjusting internal pressure of a writing implement offers improvements in deficiency prevention performance such as the capability of preventing ink leakage from occurring due to...
6340262 Writing implement with an ink collector  
A writing implement with an ink collector is able to prevent ink soiling at the pen tip even when the writing implement has been left under an atmosphere of 0° C. or below, at which the ink inside...
6276861 Writing instrument  
A writing instrument comprising a pen point receiver, a pen point and an ink introducing core member. The tip end portion of the pen point is formed to curve downwardly towards the tip end writing...
5957610 Penpoint  
A penpoint has a base portion and a plurality of comb-tooth pieces and a converging member fitted over the portion of the penpoint body between the base portion and the comb-tooth pieces. The...
5707165 Integrated feather ink pen  
An integrated feather ink pen enables one to enjoy all of the benefits of the historic form of writing without the disadvantages. A shaped grip provides a comfortable means of operating the pen. A...
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...
5290117 Penpoint assembly and writing instrument employing the same  
A penpoint assembly includes a penpoint which is made of a metal plate cut off at both side edges to form a taper toward the writing tip. A slit is provided extending from the front end of the...
5222824 Regulated ink flow control system for pen  
A reservoir pen includes a valve operated by the pen nib (4) to allow ink to pass to the nib, the ink flow rate being controlled by a flow restricting device (8) located between a primary ink...
5211495 Tubular writing instrument with suction vent  
A writing or drawing instrument wherein a housing (1), is provided with a writing point (2) and a writing fluid reservoir (3) within an interior space of the housing. A capillary pressure...
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...
5015113 Multiangular pen  
A multiangular pen comprising a multiangular pen nib; a pen core having holder pieces fitted the surface of the pen nib and a rod-like connector formed integral to the base end of the holder...
4954002 Writing instrument with membrane vent and their manufacture  
In a writing instrument including an ink reservoir and an air hole, the air hole is spanned by a barrier formed as a porous non-absorbent ink repellent membrane of substantially uniform pore size....
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...
3901608 Writing instrument  
A pen includes a lower barrel member having a lower annular chamber, a longitudinal passageway extending from the lower chamber to the exterior, an upper chamber located above the lower chamber...
3572954 WRITING DEVICE  
A writing device with a tracing point comprises detachable head fitted with a writing member and ink conducting means so that when the head is mounted on the writing device ink is fed to said...
3565542 NIB DEVICE  
2935967 Writing instrument  
2921558 Fountain pens  
2906243 Jewelled point pen  
2891512 Fountain pens  
2785656 Fountain pen with reservoir changeable and liable to be refilled  

Matches 1 - 38 out of 38