Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Reexamination Certificate
2011-08-09
2011-08-09
Schneider, Craig (Department: 3753)
Fluid handling
Line condition change responsive valves
With separate connected fluid reactor surface
C137S829000
Reexamination Certificate
active
07992587
ABSTRACT:
By use of the vias a microfluidic autoregulator is fabricated comprising an origin of a fluid, a sink for the fluid, a main flow channel coupling the origin and the sink, a valve communicated to the main flow channel to selectively control flow of fluid therethrough, and means dependent on flow through the main flow channel for creating a pressure differential across the valve to at least partially activate the valve to control flow of fluid through the main flow channel. The means for dependent on flow for creating a pressure differential comprises either a dead-end detour channel from the flow channel to the valve, or a loop channel fed back to the control chamber of the valve.
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patent: 4924905 (1990-05-01), Mastromatteo
patent: 6814938 (2004-11-01), Karp et al.
patent: 2002/0029814 (2002-03-01), Unger et al.
patent: 2010/0186840 (2010-07-01), Kartalov et al.
Anderson W. French
Kartalov Emil
Scherer Axel
Walker Christopher I.
California Institute of Technology
Dawes Daniel L.
Dawes Marcus C.
Schneider Craig
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