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. 04, 1992
Filed:
Oct. 07, 1991
Applicant:
Inventor:
John Barber, Fort Worth, TX (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B02C / ; B02C / ;
U.S. Cl.
CPC ...
241 23 ; 241 24 ; 241 65 ;
Abstract
A method of recycling of oil filters utilizes a shredder and a thermal unit. The oil filters are shredded into metal and porous media particles. The shredded matter is placed in a thermal unit and heated. The heat will be sufficient to convert the porous media to an ash, but not sufficient to melt the steel. After heating for a sufficient duration, the shredded metal particles will be separated from the ash and recycled. The ash will also be recycled.