Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Mechanical measurement system
Reexamination Certificate
2005-07-19
2005-07-19
Barlow, John (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Mechanical measurement system
C073S001020, C073S001570, C073S001590, C073S001340
Reexamination Certificate
active
06920400
ABSTRACT:
A method and apparatus for detecting and clearing a plugged sensor port in a system containing a fluid being monitored through the sensor port. The method comprises establishing a range beyond which a fluid variable is expected to vary within a predetermined time interval, measuring the fluid variable, and indicating a plugged sensor port in response to the measured fluid variable remaining within the range for the predetermined time interval. The apparatus includes a sensor mechanism that senses a fluid variable, and a controller. The controller establishes the range beyond which the fluid variable is expected to vary within a predetermined time interval, determines whether the fluid variable is within the range, and indicates a plugged sensor port in response to the fluid variable remaining within the range for the predetermined time interval. The apparatus may further include a mechanism that clears the plugged sensor port.
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Lonigro Dennis A.
Wilbur David J.
Zeskind Dale A.
Barlow John
Dougherty Anthony T.
United Electric Controls Co.
Wolf Greenfield & Sacks P.C.
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