Determining solid concentration of an ink

Details Determining solid concentration of an ink Determining solid concentration of an ink

2009-03-05

2011-10-25

Nguyen, Sang (Department: 2886)

Optics: measuring and testing

For light transmission or absorption

Of fluent material

C347S015000, C347S100000, C347S101000, C106S031250, C106S031600

Reexamination Certificate

active

08045167

ABSTRACT:
The present disclosure is drawn to methods, devices, and systems for determining solid content of inks, including a device comprising a chamber configured to hold an ink sample having ionic particulates in a liquid vehicle, a first opening in the chamber for filling the chamber with the ink sample, a second distinct opening in the chamber for removal of the liquid vehicle, a deposition electrode at least partially defining the chamber, a counter electrode, a power supply connected to the deposition electrode and the counter electrode for creating an electric field inside the chamber, and a densitometer optically coupleable to the deposition electrode for measuring the optical density of ionic particulates. Additionally, the device can be operable to separate the ionic particulates from the liquid vehicle by deposition of the ionic particulates at the deposition electrode and/or the device can be operable to measure the optical density of the ionic particulates after migration to the deposition electrode.

REFERENCES:
patent: 5570193 (1996-10-01), Landa et al.
patent: 6918662 (2005-07-01), Arita et al.
patent: 7306311 (2007-12-01), Yamanobe
patent: 7345810 (2008-03-01), Chopra et al.
patent: 7675298 (2010-03-01), Forgacs
patent: 2006/0125363 (2006-06-01), Tahira et al.
patent: 2007/0280712 (2007-12-01), Holland

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