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:
May. 13, 2003
Filed:
Feb. 26, 2002
Stephen F. Burgess, Escalon, CA (US);
Parker-Hannifin Corporation, Cleveland, OH (US);
Abstract
A crankcase breather for an internal combustion engine has a housing including inlet ports which receive crankcase emissions from the engine, and an outlet port which directs oil-free gases back to the engine. A pair of filter elements are supported in the housing in adjacent relation. One filter element is a course filter to remove larger particulate in the emissions. The other filter element is a finer filter to remove smaller particulate, and to coalesce oil. A sump channel under the elements collects oil coalescing on the elements, and a drain opening in the channel to returns the oil to the engine. A second sump collects oil coalescing on the downstream surface of the second filter. An outlet port with a check valve in the second sump prevents oil being drawn into the breather on the clean side of the elements, but allows collected oil to drain back to the engine.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile