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:
Oct. 31, 2000
Filed:
Aug. 27, 1997
Applicant:
Inventors:
Mark D Ankeny, Albuquerque, NM (US);
Jeffrey R Forbes, Albuquerque, NM (US);
Assignee:
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02B / ; E02B / ; B09B / ;
U.S. Cl.
CPC ...
405 52 ; 405 43 ; 405 45 ; 405128 ; 210170 ;
Abstract
An apparatus and method for controlling ground water flow within a contaminated soil zone. A constant head moat is created surrounding the contaminated volume by digging a trench encircling the volume. A closed loop pipe, slotted or perforated, is laid in the bottom of the trench and serves to cause a constant hydraulic head around the perimeter of the zone. This prevents ground water movement into the zone. An upward gradient is created within the zone by trees, plants or mechanical pumps to move ground water inward and upward. Leaching or movement of contaminants out of the zone is minimized or eliminated.