The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 26, 1993
Filed:
Jul. 11, 1991
Applicant:
Inventor:
Scott H DeYoung, Ridgefield, CT (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02D / ;
U.S. Cl.
CPC ...
405128 ; 405131 ;
Abstract
Disclosed is a method and apparatus for the in situ removal of contaminants from contaminated soil wherein exhaust gas from an internal combustion engine is injected at an elevated temperature into contaminated soil creating a sweep gas driving volatile organic chemicals out of the in situ soil. The mechanical energy from the internal combustion engine is utilized in separating the volatile organic chemicals from the sweep gas and/or increasing the flow rate of the sweep gas through the contaminated soil by either increasing the injection pressure and/or reducing the pressure on the recovery well.