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. 05, 1988
Filed:
Jul. 17, 1987
Applicant:
Inventors:
Dennis R Taylor, Pleasanton, CA (US);
Kevin P Gallavan, Pleasanton, CA (US);
Assignee:
Harshaw/Filtrol, Oakland, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A23D / ; C09F / ;
U.S. Cl.
CPC ...
426417 ; 426423 ;
Abstract
Used frying oils are regenerated and made suitable for reuse by treating the used oils with a composition consisting of a mixture of activated clay or magnesium silicate with a gel-derived alumina. The treating composition contains from about 15% by weight to about 75% by weight gel-derived alumina, balance activated clay or magnesium silicate. Treatment with the composition significantly reduces the free fatty acid content of the used oil with simultaneous improvement in color and other important properties thus resulting in a purified oil of substantially extended service life.