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:
May. 26, 1998
Filed:
Sep. 15, 1995
Hans-Joachim Bayer, Ettlingen, DE;
FlowTex Technologie-Import von Kabelverlegemaschinen GmbH, Ettlingen, DE;
Abstract
The invention relates to a method for decontaminating soil containing harmful substances, wherein a number of bore holes (11) are advanced to the areas at the edge of the area (21) of contaminated soil by means of a course controlled boring method, then under a continuation of the boring a directed injection of at least one appropriate injection medium (8) from the bore holes (11) is carried out such that the harmful substances are forced into a smaller soil area (21) and are finally removed. Furthermore, the invention relates to a boring head for carrying out the method according to the invention. The boring head includes a tubular boring head body with an inner flow passage and a boring head tip connected to the boring head body and having a convex tip surface the head tip has a plurality of openings connected to the inner passage. The head tip further includes a control surface inclined relative to the longitudinal axis of the head tip towards the surface area of the tip so that an injection medium can be injected through the inner passage and out through the plurality of openings.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile