Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Peter John Lagergren0
Date of Patent
October 30, 2007
Patent Application Number
11131434
Date Filed
May 16, 2005
Patent Citations Received
Patent Primary Examiner
Patent 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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