Corbino disc electroosmotic flow pump

Details Corbino disc electroosmotic flow pump Corbino disc electroosmotic flow pump

2006-05-02

2006-05-02

Thorpe, Timothy S. (Department: 3746)

Pumps

Electrical or getter type

C417S050000, C204S600000, C204S601000, C204S604000

Reexamination Certificate

active

07037082

ABSTRACT:
The present invention provides a pump for generating an Electroosmotic Flow (EOF) in a solution in a canal, guide, pipe or equivalent. Electroosmotic flow is generated by application of an electric field through a solution in a canal defined by insulating walls. The phenomenon depends on ionisation of sites on the surface so that for electroneutrality there is an excess mobile charge in the solution. The electric field acts on the excess charge in the solution causing the fluid to flow. The quantity and distribution of excess charge in the solution depends on the solution and the surface materials and is related to a parameter, the zeta (z) potential characterising material/solution combinations.

REFERENCES:
patent: 3923426 (1975-12-01), Theeuwes
patent: 5171409 (1992-12-01), Barnier et al.
patent: 5632876 (1997-05-01), Zanzucchi et al.
patent: 6394759 (2002-05-01), Parce
patent: 2003/0075445 (2003-04-01), Woudenberg et al.
patent: 0485370 (1992-05-01), None
patent: 2141737 (1985-01-01), None
patent: WO 01/36321 (2001-05-01), None

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