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:
Jan. 29, 1992
Louis J Circeo, Jr, Atlanta, GA (US);
Salvador L Camacho, Raleigh, NC (US);
Other;
Abstract
A method and apparatus for in-situ solidifying and stabilizing a mass of unstable foundation soil utilizes a plasma arc torch. The torch is inserted into a drilled and cased hole to a selected depth in a subterranean unstable soil layer and the torch is energized. The intense heat generated by the torch melts the soil material close to the hole and forms a pool of melt while more remote sections are baked to a brick-like consistency or dried and strengthened. Upon cooling, the central melted soil material cools to a hard, vitrified column with physical properties equivalent to a hard, dense rock. Variations of the method apply to a variety of construction support problems and landslide remediation problems.