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. 08, 2000
Filed:
Oct. 27, 1998
Applicant:
Inventors:
Michael Ramsey, Osceola, WI (US);
John W Summerfield, Rosemount, MN (US);
Assignee:
CRI Recycling Services, Inc., Woodville, WI (US);
Primary Examiner:
Int. Cl.
CPC ...
F26B / ;
U.S. Cl.
CPC ...
34257 ; 34258 ; 34351 ; 134 30 ;
Abstract
Dielectric heating is used to assist with the cleaning of sorbent materials contaminated with oils and the like and the recovery of the solvent. In particular, a pressurized system is used such that a pressurized solvent is circulated to remove the contaminants from the sorbent materials. The RF radiation is directed into the vessel to vaporize residual solvents associated with the sorbent materials. Solvent is separated from the removed contaminants for reuse. RF radiation can be used to complete the removal of volatile compounds from the reclaimed oil/contaminants.