Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Mechanical measurement system
Reexamination Certificate
2005-02-01
2005-02-01
Nghiem, Michael (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Mechanical measurement system
Reexamination Certificate
active
06850849
ABSTRACT:
A fluid flow monitoring, evaluation, and control system providing accurate dispensing of fluids in low volume, high pressure systems. The system includes one or more fluid flow sensors mounted on positive displacement dispensing valves and a processor that receives cycle signals from the fluid flow sensors to determine fluid flow information. If the fluid flow is not within specified limits, a signal is sent to a pump control device to adjust the pump to return the fluid flow to desired level. A dispensing valve can include a display to show cycle time or other fluid flow measurement. The system can include dispensing valves having single inputs and single outputs for measuring fluid dispensed at a point of use, which measurement can be compared to measurements taken at a divider block earlier in the hydraulic path to verify that fluid sent into the path was actually dispensed.
REFERENCES:
patent: 5612890 (1997-03-01), Strasser et al.
patent: 5835372 (1998-11-01), Roys et al.
patent: 5882384 (1999-03-01), Tom et al.
patent: 857 245 (1995-06-01), None
Nghiem Michael
Scheinberg Michael O.
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