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. 12, 1992
Filed:
Dec. 03, 1989
Edmond H Cote, Warren, RI (US);
Matthew B Prendergast, Warwick, RI (US);
Allied-Signal Inc., Morristown, NJ (US);
Abstract
A filter assembly for filtering the lubricating oil of an internal combustion engine includes a filter base, a cover for the filter base, and a spin-on filter cartridge attached to the filter base by way of a conventional threaded mounting stud. A filter screen is clamped between the cover and filter base and is of a sufficient mesh size to trap large particles that can be examined by tbe human eye, thereby permitting smaller particles to pass through the screen and to be trapped in the filter cartridge. When the screen becomes clogged, a relief valve opens a bypass passage permitting all lubricating oil to flow directly into the filter cartridge.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile