Process and apparatus for obtaining samples of liquid and gas from soil

Patent · Thu Dec 31 23:00:00 EST 1998

OSTI ID:872231

Rossabi, Joseph ^[1]; May, Christopher P ^[2]; Pemberton, Bradley E ^[3]; Shinn, Jim ^[4]; Sprague, Keith ^[5]

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1. 105 Michael Ct., Aiken, SC 29801
2. 5002 Hesperus Dr., Columbia, MD 21044
3. 131 Glencarin Dr., Aiken, SC 29803
4. Box 65, RFD. #1, South Royalton, VT 05068
5. Box 234 Rte. 14, Brookfield, VT 05036

An apparatus and process for obtaining samples of liquid and gas from subsurface soil is provided having filter zone adjacent an external expander ring. The expander ring creates a void within the soil substrate which encourages the accumulation of soil-borne fluids. The fluids migrate along a pressure gradient through a plurality of filters before entering a first chamber. A one-way valve regulates the flow of fluid into a second chamber in further communication with a collection tube through which samples are collected at the surface. A second one-way valve having a reverse flow provides additional communication between the chambers for the pressurized cleaning and back-flushing of the apparatus.

• Research Organization: WESTINGHOUSE SAVANNAH RIVER CO
• DOE Contract Number: AC09-89SR18035
• Assignee: Rossabi, Joseph (105 Michael Ct., Aiken, SC 29801);May, Christopher P. (5002 Hesperus Dr., Columbia, MD 21044);Pemberton, Bradley E. (131 Glencarin Dr., Aiken, SC 29803);Shinn, Jim (Box 65, RFD. #1, South Royalton, VT 05068);Sprague, Keith (Box 234 Rte. 14, Brookfield, VT 05036)
• Patent Number(s): US 5889217
• OSTI ID: 872231
• Country of Publication: United States
• Language: English

Related Subjects

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accumulation
additional
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back-flushing
chamber
chambers
cleaning
collected
collection
communication
creates
encourages
entering
expander
external
filter
filters
flow
flow provides
fluid
fluids
gas
gradient
liquid
migrate
obtaining
obtaining samples
one-way
one-way valve
plurality
pressure
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pressurized
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provides additional
regulates
reverse
reverse flow
samples
soil
soil-borne
substrate
subsurface
subsurface soil
surface
tube
valve
void
zone