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:
Mar. 02, 2010
Filed:
Nov. 28, 2006
Wesley L. Bratton, Richland, WA (US);
Joseph W Maresca, Jr., Sunnyvale, CA (US);
William E. Lowry, Santa Fe, MN (US);
Dawn Samara Kaback, Denver, CO (US);
Wesley L. Bratton, Richland, WA (US);
Joseph W Maresca, Jr., Sunnyvale, CA (US);
William E. Lowry, Santa Fe, MN (US);
Dawn Samara Kaback, Denver, CO (US);
Vista Engineering Technologies LLC, Kennewick, WA (US);
Abstract
Vertical migration of a plume of subsurface contamination in the vadose zone to the groundwater is prevented by forming and maintaining one or more desiccation layers in the vadose zone in or above a layer of contamination. Horizontal barrier layers are produced by injecting dry air at a specific elevation in one borehole and removing the air at another borehole. These horizontal layers act as an impermeable barrier to the vertical migration of dissolved contaminants.