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:
Jun. 07, 1994
Filed:
Aug. 07, 1992
Applicant:
Inventors:
Assignee:
Wynn Oil Company, Azusa, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210167 ; 210205 ; 210241 ; 210712 ; 210732 ; 210805 ; 123 4114 ; 123 4101 ; 165 95 ; 134 221 ; 134 41 ; 134 2218 ;
Abstract
The method of treating used liquid coolant employed in the coolant passages of an engine or radiator, and employing a coolant pumping structure, that includes providing a source of supply coolant liquid, and a used coolant reservoir; operating the pumping structure to displace supply coolant liquid from the source into the coolant passages, thereby displacing used coolant from the passages for flow into the reservoir structure; and chemically treating the used coolant liquid to remove metallic and other contaminants therefrom, thereby to produce treated coolant liquid usable as the supply coolant liquid.