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:
Nov. 30, 1993
Filed:
Aug. 20, 1992
Billy J Losack, Hondo, TX (US);
Tuboscope Vetco International, Inc., Houston, TX (US);
Abstract
An in situ, on-the-ground method of cleaning contaminated soil comprises breaking and piling up contaminated soil, placing the broken soil in a substantially enclosed on-the-ground system and circulating air under pressure to promote an increase in temperature which aids the oxidation, vaporization and gasification of the contaminants and substantially harmless metabolic products thereof produced by indigenous microorganisms, extracting any gases or vapors comprising the contaminants and metabolic products thereof from the now substantially decontaminated soil under vacuum, filtering the thus extracted gas- or vapor-containing air to separate clean air from the contaminants, and return it to the environment or recycle it, and returning the decontaminated soil to the environment.