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. 01, 2010
Filed:
Dec. 14, 2006
Valentin Ruffet, Stuttgart, DE;
Hans-martin Ruppert, Ostfildren, DE;
Valentin Ruffet, Stuttgart, DE;
Hans-Martin Ruppert, Ostfildren, DE;
Mahle International GmbH, Stuttgart, DE;
Abstract
The invention relates to an oil filter device () for an internal combustion engine, comprising a support element () and a substantially cylindrical filter cartridge () which can be connected, especially screwed, to the support element (). The invention is characterized in that the filter cartridge is arranged essentially in an upright position while an annular duct () which surrounds the filter cartridge () in the screwed-on state is embodied inside the support element (). The duct () is fluidically separated from the interior of the filter cartridge () when the filter cartridge is screwed on while said separation is eliminated when the filter cartridge () is removed. Furthermore, the duct () is configured as a drainage duct and is fluidically connected to an oil reservoir when the filter cartridge () is removed such that the filter cartridge is easy to replace while no oil is spilled, preventing pollution of the environment.