Apparatus and method for driving a microflow
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United States of America Patent
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Feb 27, 2001
Grant Date -
N/A
app pub date -
Jul 1, 1999
filing date -
Jul 1, 1999
priority date (Note) -
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Abstract
A pneumatic apparatus and method for driving a microflow is disclosed. The microflow driving apparatus of this invention comprises an external pneumatic driving device that generates an array of airflows; an air gallery to accept airflows of said pneumatic driving device and to generate a suction force and an exclusion force; and a fluid channel connected with said air gallery to allow a fluid to flow inside it. In the air gallery, a trapezoid block is provided to generate an air circle from at least one of said airflows. An open gap is provided in the fluid channel at the connection of the air gallery and the fluid channel. When different combinations of airflows are introduced into the air gallery, a suction force or an exclusion force is generated to drive the reaction fluid inside the fluid channel to proceed, retreat or pause. A method using the apparatus for driving a microflow is also disclosed.
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