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Pressurized writing instrument employing compressible piston member

A technology for writing utensils and driving elements, which is used in writing utensils, devices for coating liquid on surfaces, and ink pens with ink storage tubes in the pen barrel, etc.

Inactive Publication Date: 2005-11-02
SOC DITE SOC BIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The strong incompressible piston elements of the pressurized systems involved in the prior art cannot maintain a seal at the wider portion of the ink tube and cannot fit in the narrowest portion to expel all the ink from the writing instrument

Method used

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  • Pressurized writing instrument employing compressible piston member
  • Pressurized writing instrument employing compressible piston member

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Embodiment Construction

[0014] refer to figure 1 , which shows an embodiment of a writing instrument 10 constructed according to the present invention, it should be understood that those skilled in the art can make various modifications and substitutions for various elements. Writing implement 10 may stand alone as a writing implement, or may be formed as a writing implement core inserted into a sleeve or writing implement housing.

[0015] Writing implement 10 generally includes an ink tube 12 partially filled with a writing medium 14 (for convenience, or "ink" is described herein, but this does not limit the writing medium to ink). Ink tube 12 has a first end 18 and a second end 20 . At the first end 18 of the ink tube 12 is provided a writing tip 22 . Writing point 22 may be a conventional ball nib in which a ball is mounted in a socket. However, any other form of nib could be used instead.

[0016] One embodiment of writing instrument 10 is designed for a high viscosity ink. Writing medium 1...

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PUM

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Abstract

A pressurized writing device comprising an ink tube (12) having a first end (18) and second end (20), a writing tip (22) at the first end, an end plug (30) at the second end, a pressurizing system (24). The pressurizing system applies a force to a writing medium (14) in the ink tube to force the writing medium out the writing tip pressurization system and includes a compressible ink driving member (28). The compressibility of the ink driving member assures a secure seal of the writing medium in the ink tube. Additionally, the compressibility permits the ink driving member to wipe ink off the interior surface of the link tube as ink is expended.

Description

technical field [0001] The present invention relates to a pressurized writing device, and more particularly to a pressurized writing device using a compressible ink drive element. Background technique [0002] Pressurized writing instruments are well known to the writing instrument industry and have been used for many years. Solvent loss can be minimized in writing instruments using highly volatile solvents and in applications using highly viscous inks where pressure is required to force the ink to the tip of the writing instrument using a pressurized system. Furthermore, the use of a pressurizing device in the writing instrument enables use of the writing instrument in both horizontal and inverted orientations for longer periods of time and reduces the need to shake the writing instrument vigorously to initiate ink flow after storage in the inverted position. [0003] Mechanical and chemical pressurization devices are two types of pressurization systems that have been used...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A46B11/02B43K5/06B43K7/03
CPCB43K5/06B43K7/03
Inventor R·S·鲁坎A·德阿达里奥
Owner SOC DITE SOC BIC