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:
Jul. 25, 1995
Filed:
Feb. 14, 1994
John Tregidgo, Hewitt, NJ (US);
Francis J Regina, Millburn, NJ (US);
Arthur T Walsh, Morris Plains, NJ (US);
Ronald P Rohrbach, Flemington, NJ (US);
Thirumalai G Palanisamy, Morristown, NJ (US);
Gordon W Jones, Toledo, OH (US);
Gilbert C Reynolds, Oak Harbor, OH (US);
AlliedSignal Inc., Morristown, NJ (US);
Abstract
A device for treating and conditioning engine coolant for use with an internal combustion engine includes a housing having an inlet and outlet and a filtering media and container carrying coolant treatment material located within the housing. Coolant passes through the filter, and then is exposed to the tip of a rod which erodes away to permit treatment material to be discharged in the coolant. As the corrosiveness of the coolant decreases, erosion of the rod is discontinued, so that additional treatment material is no longer discharged into the coolant. Accordingly, the corrosiveness of the coolant is controlled to within relatively narrow limits.