Microvalve having magnetic wax plug and flux control method...

Details Microvalve having magnetic wax plug and flux control method... Microvalve having magnetic wax plug and flux control method...

2011-01-25

2011-01-25

Fristoe, Jr., John K (Department: 3753)

Fluid handling

Processes

Affecting flow by the addition of material or energy

C137S251100, C137S828000, C251S011000, C251S129010

Reexamination Certificate

active

07874305

ABSTRACT:
Provided is a microvalve having a magnetic wax plug which includes a micro fluidic structure having an inlet portion and an outlet portion, a magnetic wax plug provided at a predetermined section where the inlet portion and the outlet portion meet, existing in a solid state, melted at a temperature higher than a predetermined temperature, and reversibly moving along a magnetic field, so as to control flux of a fluid through the micro fluidic structure, a heating portion provided corresponding to the section and heating the magnetic wax plug to be melted, and a magnetic field application portion selectively applying a magnetic field to a position where the melted magnetic wax plug arrives.

REFERENCES:
patent: 6375901 (2002-04-01), Robotti et al.
patent: 6575188 (2003-06-01), Parunak
patent: 6679279 (2004-01-01), Liu et al.
patent: 7195036 (2007-03-01), Burns et al.
patent: 2004/0219732 (2004-11-01), Burns et al.

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