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:
Jan. 08, 2008
Filed:
Jan. 26, 2004
Ronald Paul Rohrbach, Flemington, NJ (US);
Gordon William Jones, Toledo, OH (US);
Peter D. Unger, Morristown, NJ (US);
Daniel E. Bause, Flanders, NJ (US);
Lixin L. Xue, Midilothian, VA (US);
Greg Kemenah, Toledo, OH (US);
Ronald Paul Rohrbach, Flemington, NJ (US);
Gordon William Jones, Toledo, OH (US);
Peter D. Unger, Morristown, NJ (US);
Daniel E. Bause, Flanders, NJ (US);
Lixin L. Xue, Midilothian, VA (US);
Greg Kemenah, Toledo, OH (US);
Honeywell International, Inc., Morristown, NJ (US);
Abstract
An improved oil conditioning filter, for use with an internal combustion engine, includes a mechanically active filter element and a chemically active filter element having a reactive basic conditioner therein. The reactive basic conditioner is provided to counteract acidic combustion products in lubricating oil in an internal combustion engine. In a preferred embodiment of the invention, the chemically active conditioning agent is provided in a plurality of pellets disposed within the oil filter housing. The pellets may be bonded together to form an integral porous filter element having spaces defined between the pellets thereof. The pellets are made of a mixture including a polymeric binder and the chemically active conditioning agent, in a defined weight ratio and in a narrow range of particle sizes. The chemically active filter element reacts with acids present in the oil to form a product which may be filtered out of the oil. The pellets are made either by a hot extrusion process or by a solvent process.