Coating implements with material supply – Projectable and retractable tool – Clasp associated with project-retract means or with latch
Reexamination Certificate
2000-12-22
2001-08-28
Huson, Gregory L. (Department: 2673)
Coating implements with material supply
Projectable and retractable tool
Clasp associated with project-retract means or with latch
C401S104000, C401S111000, C401S112000, C401S180000
Reexamination Certificate
active
06280110
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a pressing device for a pen. In particular, the present invention relates to a pressing device arranged in a pen, with which the pen clip may move outward to separate an engaging piece on a movable tube from a clamping piece to move the movable tube upward. Thus, the nib part on the pen can retreat into the penholder and avoid staining a clipped article in the case where the pen is clipped to a clipped article such as a pocket or a notebook when the nib part is extended outside.
2. Description of Related Art
Writing is a principal and required function of a pen. It is undoubted that a consideration concerning how to be carried about with the user is worth it for us to care except for the function of writing and the way the pen is used. After all, we need to use a pen wherever we are. The most common way to enhance the portability of a pen is to add a pen cap or pen clip on the pen so that it is possible for the pen to clip to a pocket on clothes or a book.
Although the added pen cap or pen clip can offer an expected function for a pen being carried about, there is a shortcoming needed to overcome. For instance, a push type of pen with a pen clip usually has a press cap to be pushed downward so as to displace a bounce device. Thus, a rotary key in the pen may press a key rib part at the top of the pen during rotation such that the center stick and a spring therein are urged to expose the nib part of the center stick for writing. The nib part of the center stick is disposed downward while the preceding push type of pen is clipped to the pocket. However, the exposed nib part may stain the cloth of the pocket with ink if the user forgets to move the nib part of the clipped pen backward in the penholder. Especially, it is much more serious in the case where a pen with liquid ink or a steel ball is clipped to the clothes. The liquid ink is easily absorbed by the cloth and permeates the cloth fiber so that it is hard to clean up once the cloth is stained. Therefore, it is a subject that has to be broken through so that the nib part can move backward in the penholder during the pen being clipped.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a pressing device for a pen, which has a structure to move the nib part of the center stick automatically while the nib part touches a clipped article so as to avoid the ink in the pen staining the clipped article.
REFERENCES:
patent: 3819282 (1974-06-01), Schultz
patent: 5413428 (1995-05-01), Kageyama
patent: 5871296 (1999-02-01), Furukawa et al.
patent: 5915866 (1999-06-01), Furukawa
patent: 5918993 (1999-07-01), Koyama
Dougherty & Troxell
Huson Gregory L.
Prunner Kathleen J.
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