Acoustic system for measuring the location and depth of underground pipe

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6003376
SERIAL NO

09096422

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An acoustic method and apparatus for measuring the horizontal surface location and depth of any type of underground pipe or conduit, including nonmetallic or nonconductive pipe, such as sewer, gas, and water pipes, which cannot be detected with electromagnetic locators. A continuous-wave (CW) acoustic signal is injected into and transmitted through the fluid (liquid or gas) in the pipe. The horizontal surface location and depth of the pipe are determined from an analysis of the phase measurements derived from an array of acoustic measurements, which are made at the surface and approximately perpendicular to the direction of the underground pipe.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
Vista Engineering Technologies LLCKENNEWICK, WA8
VISTA ENGINEERING TECHNOLOGIES, INC.KENNEWICK, WA1

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Burns, Alan A Mountain View, CA 4 198
Griffin, Stephanie A Mountain View, CA 1 28
Hayter, Gary A Mountain View, CA 39 318
Maresca, Jr Joseph W Mountain View, CA 21 485

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (3)
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COLUMBIA GAS OF OHIO, INC. (1)
* 5412989 Acoustic tracing of buried conduits 7 1992
 
SOUTHERN CALIFORNIA GAS COMPANY (1)
* 5127267 Acoustic method for locating concealed pipe 10 1991
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (3)
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* Cited By Examiner