Fluid handling – Systems – With flow control means for branched passages
Reexamination Certificate
2007-10-31
2009-11-03
Rivell, John (Department: 3753)
Fluid handling
Systems
With flow control means for branched passages
C600S485000
Reexamination Certificate
active
07610936
ABSTRACT:
The fluid delivery system includes a pressurizing device for delivering a pressurized injection fluid, a low pressure fluid delivery system, and a pressure isolation mechanism adapted for fluid communication with the pressurizing device and low pressure fluid delivery system. The pressure isolation mechanism includes a housing defining an inlet port, an isolation port, and an internal cavity. The housing defines a seal seat in the internal cavity between the inlet port and isolation port. A valve member is disposed in the internal cavity. The valve member is free floating in the internal cavity and is adapted to engage the seal seat. The valve member has an open position permitting fluid communication between the inlet port and isolation port, and is fluid flow responsive to fluid flow in the inlet port to engage the seal seat and attain a closed position preventing fluid flow between the inlet port and isolation port.
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International Search Report for Corresponding International Patent Application Publication PCT/US07/84403, Jun. 5, 2008.
Haury John A.
Spohn Michael A.
Bradley Gregory
McCalister William
MEDRAD, Inc.
Rivell John
Schuster Christopher
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