Writing article having a capillary reservoir with improved...

Details Writing article having a capillary reservoir with improved... Writing article having a capillary reservoir with improved...

2003-06-06

2008-12-30

Walczak, David J (Department: 3751)

Coating implements with material supply

Material flows through porous tool

Wick feed from within reservoir to tool

C401S198000, C401S040000, C401S041000

Reexamination Certificate

active

07470079

ABSTRACT:
A writing instrument having a body, a main reservoir containing ink and housed in said body, a writing head projecting from the front part of said body, and a capillary connector for transferring ink from the main reservoir to the writing head. The instrument has an auxiliary reservoir containing an ink carrier liquid, and an actuator for releasing said liquid from the auxiliary reservoir so that said liquid flows into the main reservoir and expels the ink towards the connector. The carrier liquid contains the ink solvent, in particular water in the case of a water-based ink, and preferably contains all or any of the components of the ink in the main reservoir, whereby the original writing properties of the residual ink carried by the carrier liquid are preserved.

REFERENCES:
patent: 2061405 (1936-11-01), Kingman et al.
patent: 2879744 (1959-03-01), Goldman et al.
patent: 3720473 (1973-03-01), Nakata
patent: 5433545 (1995-07-01), Keil
patent: 6244774 (2001-06-01), Lang et al.
patent: 3642037 (1988-06-01), None
patent: 2194138 (1988-03-01), None

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