Measuring and testing – Liquid level or depth gauge
Reexamination Certificate
2007-10-30
2007-10-30
Williams, Hezron (Department: 2856)
Measuring and testing
Liquid level or depth gauge
Reexamination Certificate
active
11131434
ABSTRACT:
The invention describes a method of altering the transmitted frequency used in an ultrasonic ranging system for liquid level measurement in a fuel tank. The frequency agility of the system is an important component of performing liquid level measurement in an enclosed vessel.
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Stoel Rives LLP
Thompson John R.
West Paul M.
Williams Hezron
Xtero Datacom Inc.
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