Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2007-04-17
2007-04-17
Mullins, Burton (Department: 2834)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
C137S827000, C137S831000, C137S909000, C222S420000, C422S105000
Reexamination Certificate
active
10958428
ABSTRACT:
A magnetostatic actuator uses a ferrofluid slug confined in a cylindrical tube which is wrapped in a conducting coil. By applying a current to the coil, a magnetic field is generated inside the coil. The ferrofluid slug may be attracted to the interior of the coil by the interaction of its magnetic moment with the field generated inside the coil. Movement of the ferrofluid slug in response to the magnetic field may be used to actuate various devices, such as a droplet dispenser.
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Mullins Burton
Palo Alto Research Center Incorporated
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