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. 13, 1997
Filed:
Mar. 15, 1996
Applicant:
Inventors:
George Korfiatis, Basking Ridge, NJ (US);
Nirupam Pal, Kearny, NJ (US);
Assignee:
Trustees of Stevens Institute of Technology, Hoboken, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B09B / ;
U.S. Cl.
CPC ...
4352625 ; 588207 ;
Abstract
A method for removing chemical preservatives from wood treated with chemical preservatives is provided. Wood treated with chemical preservatives is chipped to produce wood chips. These wood chips are contacted with an organic solvent and sonicated to extract the chemical preservatives. A system for the removal of chemical preservatives from wood treated with these preservatives which contains an extraction system for contacting wood chips from wood treated with a chemical preservative with an organic solvent and a sonicator for sonicating these wood chips in the organic solvent are also provided.