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Class Information
Number: 405/128.2
Name: Hydraulic and earth engineering > Soil remediation > In situ contaminant removal or stabilization > Vacuuming contaminant
Description: Subject matter wherein a suction or pressure differential is used to aid in the removal or withdrawal of the impurities or pollutants from the soil.










Sub-classes under this class:

Class Number Class Name Patents
405/128.25 With fluid application 72
405/128.4 With heat 42


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8360682 Information method combined with dynamic consolidation and vacuum drainage for reinforcement of soft soil ground Jan. 29, 2013
8210772 Soil vapor extraction remediation system with vapor stream separation Jul. 3, 2012
7386957 Non-intrusive vapor collection apparatus Jun. 17, 2008
7156988 Floating product removal Jan. 2, 2007
6913420 Fluid movement apparatus Jul. 5, 2005
6746605 Multi-arrayed vacuum recovery method and system for groundwater wells Jun. 8, 2004
6742962 Infiltration and gas recovery systems for landfill bioreactors Jun. 1, 2004
6706096 Method and system for protecting buildings from subsurface gases Mar. 16, 2004
6632047 Heater element for use in an in situ thermal desorption soil remediation system Oct. 14, 2003
6485232 Low cost, self regulating heater for use in an in situ thermal desorption soil remediation system Nov. 26, 2002
6464005 Remediation method Oct. 15, 2002
6379083 Method for the remediation of soil contaminated with organic halide compounds Apr. 30, 2002
6254311 Removal of ground contaminents Jul. 3, 2001
6189614 Oil and gas production with downhole separation and compression of gas Feb. 20, 2001
6149345 High-vacuum groundwater and soil remediation system and related method and apparatus Nov. 21, 2000
6048134 Automatic aspirator air control system Apr. 11, 2000
6024868 Air flow control circuit for sustaining vacuum conditions in a contaminant extraction well Feb. 15, 2000
5984578 Apparatus and method for in situ removal of contaminants using sonic energy Nov. 16, 1999
5893680 Volatile contaminant extraction from subsurface apparatus and method Apr. 13, 1999
5860767 High-vacuum groundwater and soil remediation system and related method and apparatus Jan. 19, 1999
5709505 Vertical isolation system for two-phase vacuum extraction of soil and groundwater contaminants Jan. 20, 1998
5688076 High-vacuum groundwater and soil remediation system and related method and apparatus Nov. 18, 1997
5655852 High vacuum extraction of soil contaminants along preferential flow paths Aug. 12, 1997
5622450 Pressure extraction process for removing soil and groundwater contaminants Apr. 22, 1997
5613805 Device for cleaning contaminated topsoil Mar. 25, 1997
5611402 Method of in-situ remediation of volatile contaminants from soils and/or rock Mar. 18, 1997
5586836 Bootstrapping process optimization for two phase vacuum extraction systems Dec. 24, 1996
5577558 In-well device for in situ removal of underground contaminants Nov. 26, 1996
5575585 Multiple well contaminant recovery apparatus Nov. 19, 1996
5509757 Fluid extraction device Apr. 23, 1996
5403119 Perforated piling for soil remediation Apr. 4, 1995
5387057 Contaminated ground site remediation system Feb. 7, 1995
5383747 System for treating a subterranean formation having an aquifer contaminated with organics Jan. 24, 1995
5380125 Fluid extraction device Jan. 10, 1995
5380126 Method of and arrangement for rinsing out impurities from ground Jan. 10, 1995
5358357 Process and apparatus for high vacuum groundwater extraction Oct. 25, 1994
5356240 Soil gas and moisture removal Oct. 18, 1994
5332333 Vacuum extraction method and apparatus for removing volatile contaminants from the vadose layer of contaminated earth Jul. 26, 1994
5265978 Method for in situ cleaning of contaminated soil Nov. 30, 1993
5221159 Subsurface contaminant remediation, biodegradation and extraction methods and apparatuses Jun. 22, 1993
5161914 Slotted extraction trench remediation system Nov. 10, 1992
5160217 Method of in situ decontamination Nov. 3, 1992
5147535 Arrangement for driving out of volatile impurities from ground water using vibrations Sep. 15, 1992
5143607 Arrangement for driving out volatile impurities from ground water Sep. 1, 1992
5134078 Process and plant for the removal of soil contaminants Jul. 28, 1992
5116163 Arrangement for driving out volatile impurities from ground water May. 26, 1992
5106232 Method of in situ decontamination Apr. 21, 1992
5017289 Process for in situ biodegradation of hydrocarbon contaminated soil May. 21, 1991
4957394 Method and apparatus for sub-floor collection and disposal of radon gas Sep. 18, 1990
4895085 Method and structure for in-situ removal of contamination from soils and water Jan. 23, 1990

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