Measuring and testing – Sampler – sample handling – etc. – Capture device
Reexamination Certificate
2008-04-22
2011-11-08
Raevis, Robert (Department: 2856)
Measuring and testing
Sampler, sample handling, etc.
Capture device
Reexamination Certificate
active
08051727
ABSTRACT:
A pore-water profiler and method for sampling pore water. The pore-water profiler includes a sample intake probe that receives the fluid to be sampled. A clog-resistant first filter filters the fluid as it enters the sample intake probe. A second filter, which has a pore size less than the pore size of the first filter, filters the fluid a second time before the fluid enters a sample container. A sample triggering system connected to the sample container initiates sampling by causing the fluid to be drawn into the sample intake probe. The profiler provides high-resolution (centimeter-scale) vertical pore-water profiles. The sequential filtration of the pore water avoids the problem of sample-circuit clogging, even in sediments dominated by fine or organic-rich particles. The profiler has all non-metallic, acid-washable components that contact the fluid sample, making the profiler suitable for trace-inorganic studies.
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Kuwabara James S.
Murphy Fred
Myhre Robert C.
Parchaso Francis
Topping Brent R.
Gilsdorf C. Joan
Raevis Robert
The United States of America as represented by the Secretary of
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