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:
Feb. 14, 1995
Filed:
Oct. 18, 1993
Applicant:
Inventor:
Robert J Carlson, The Woodlands, TX (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02D / ; E02D / ;
U.S. Cl.
CPC ...
405274 ; 405129 ; 405281 ; 403331 ;
Abstract
Methods and structural configurations of modular barrier systems and cutoff walls used to isolate contaminated soils from the environment in situ. The cutoff walls comprise plastic sheets, preferably of high density polyethylene, inserted in or adjacent to dense soil (such as bentonite modified) walls, and they are connected to each other with tubular connectors having flaps to which the plastic sheets are connected, preferably by welding.