Patent ID: 6830403
Filing Date: 2004-12-14
Classification: B43K

Abstract:
A writing implement having a built-in illumination system and a light reflecting chamber comprising:a front pen tube having three sections, cone of front pen tube, cylindrical barrel, and threaded tube, said front pen tube having a hollow space and housing an ink cartridge; an ink cartridge accommodated in the front pen tube; a cylindrical light reflecting tube covering the cylindrical barrel section and the threaded tube section of the front pen tube, said reflecting tube functioning as the major part of a light reflecting chamber; a annular light reflecting plate located behind a light-emitting body or surrounding a light-emitting body; a middle ring positioned between the front pen tube and rear pen tube, said middle ring combining front pen tube and rear pen tube by a thread and groove conjugation; a rear pen tube housing a power system consisting of a light-emitting body, a power chamber, and part of the switching on system, said power chamber comprising of a threaded tube, a LED conducting wire channel and a battery room; a switching on system including a switching cap, a push tube, a joint, and a conducting spring; a separable pen cap covering and protecting the ink cartridge tip and having a clip, said pen cap having a small hole allowing light inside to be seen and functioning as a light indicator when the writing implement being capped and lighted.