Pore water sampler for long-term monitoring of ground water

Details Pore water sampler for long-term monitoring of ground water Pore water sampler for long-term monitoring of ground water

2006-04-06

2008-10-07

Raevis, Robert R (Department: 2856)

Measuring and testing

Sampler, sample handling, etc.

With constituent separation

C073S864740

Reexamination Certificate

active

07430929

ABSTRACT:
A method and device for sampling pore water, including an elongated tubular outer body having a grid framework forming multiple perforations throughout the entire outer body. The grid framework surrounding the perforations has raised and beveled sides. An elongated, perforated tubular inner body is contained within the outer body. The inner body has a diameter less than a diameter of the outer body, which forms a cavity between the inner body and the outer body. The cavity is filled with an inert granular filler material. A first outer cap and a second outer cap cover respective ends of the outer body. A coupling is placed in fluid communication with the inner body and protrudes through the first outer cap. A tube is attached to the coupling protruding through the first outer cap to transfer a water sample to a sample collection site.

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U.S. Appl. No. 10/767,496, filed Jan. 28, 2004, Vroblesky.
Vroblesky, D.A., “User's Guide for Polyethylene-Based Passive Diffusion Bag Samplers to Obtain Volatile Organic Compound Concentrations in Wells: Part 1: Deployment, Recovery, Data Interpretation, and Quality Control and Assurance,”U.S. Geological Survey Water-Resources Investigations Report 01-4060; 2001; pp. 1, 3, and 4; <http://sc.water.usgs.gov/publications/pdfs/WRIR01-4060.pdf>.
“User's Guide for Polyethylene-Based Passive Diffusion Bag Samplers to Obtain Volatile Organic Compound Concentrations in Wells: Part 2: Field Tests,”U.S. Geological Survey Water-Resources Investigations Report 01-4061, Don A. Vroblesky ed.; 2001; pp. cover page, I, A-3, and A-4; <http://sc.water.usgs.gov/publications/pdfs/WRIR01-4061.pdf>.
Vroblesky, D.A., Petkewich, M.D., and Campbell, T.R., “Field Tests of Diffusion Samplers for Inorganic Constituents in Wells and at a Ground-Water-Discharge Zone,”U.S. Geological Survey Water-Resources Investigations Report 02-4031; 2002; pp. 1-4; <http://sc.water.usgs.gov/publications/pdfs/WRIR-02-4031.pdf>.
“Gravel Pack Screens,” Baker Hughes Inc., 3900 Essex Lane, Suite 1200, Houston, TX 77027-5177, 7 pp. <http://www.bakerhughesdirect.com/cgi/hello.cgi/BOT/public/thru—tubing/pdf/scs—p.31—37.pdf>, dated downloaded Apr. 2006.

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