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:
Apr. 16, 1991
Filed:
Feb. 26, 1990
Applicant:
Inventors:
Jaw K Fu, Pittsburgh, PA (US);
Arch J Merritt, deceased, late of Pittsburgh, PA (US);
John R Smith, Pittsburgh, PA (US);
Assignee:
Keystone Environmental Resources, Inc., Monroeville, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02D / ;
U.S. Cl.
CPC ...
405258 ; 405128 ;
Abstract
A method is disclosed in which the shape is selected and the soil composition is adjusted on a sloped treatment cell so that downward migration of moisture during the treatment of contaminated soil is minimized. The need to use a plastic liner is thus avoided.