Ultrasonic fuel level monitoring device

United States of America Patent

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Oct 30, 2007
Grant Date
Dec 29, 2005
app pub date
May 16, 2005
filing date
May 17, 2004

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Expired

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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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Patent Owner(s)

Patent Owner	Address
SCHMITT MEASUREMENT SYSTEMS INC	2765 N W NICOLAI PORTLAND OR 97210

International Classification(s)

G01F:MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUI....

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Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Lagergren, Peter John	Glen Rose, TX	3	49

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Ultrasonic fuel level monitoring device

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United States of America Patent

11131434

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PATENT NO	7287425
APP PUB NO	20050284218A1
SERIAL NO	11131434
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity Expired	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
October 30, 2007	US,7287425,B2 US7287425B2	GRANTED PATENT AS SECOND PUBLICATION
December 29, 2005	US,20050284218,A1 US20050284218A1	FIRST PUBLISHED PATENT APPLICATION

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11131434

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