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:
Aug. 20, 1991
Filed:
Apr. 10, 1990
Applicant:
Inventor:
Keith E Forrester, Stratham, NH (US);
Assignee:
Wheelabrator Environmental Systems, Inc., Hampton, NH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B09B / ; C04B / ;
U.S. Cl.
CPC ...
405129 ; 106705 ; 405266 ;
Abstract
Waste ash is controlled and adjusted in its water content to result in a compacted permeability of about 10.sup.-5 cm/s or less. With particle size distribution adjustments, the compacted permeability can be made even lower. The impermeable structure is useful as a cover or cap for existing landfills to prevent leaching as a liner in new sites. Processing the ash can result in a volumetric decrease of more than 40% thereby extending the useful life of new or existing landfills.