Phosphorescent marker for laboratory autography

Details Phosphorescent marker for laboratory autography Phosphorescent marker for laboratory autography

2005-04-19

2005-04-19

Walczak, David J. (Department: 3751)

Coating implements with material supply

Material flows through porous tool

Wick feed from within reservoir to tool

C401S196000, C106S031130, C106S031300

Reexamination Certificate

active

06881000

ABSTRACT:
A laboratory autography marking pen capable of delivering a low viscosity phosphorescent marking ink that contains a homogeneous suspension of phosphor particles having an average particle size of between 10 and 40 microns, and whose afterglow half-life is less than 5 minutes. The marking pen further includes a high porosity fiber channel writing nib whose ink flow channels are of a sufficient size to allow the phosphor particles suspended in the ink to flow by capillary transport through these channels onto an ink receiving substrate material.

REFERENCES:
patent: 3779780 (1973-12-01), Dyson
patent: 4510392 (1985-04-01), Litt et al.
patent: 5762694 (1998-06-01), Yokoi et al.
patent: 6224284 (2001-05-01), Sukhna et al.

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