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. 13, 2004
Filed:
Dec. 13, 2002
Filterwerk Mann & Hummel GmbH, Ludwigsburg, DE;
Abstract
An air filtration system for purifying an air stream, such as the intake air for an internal combustion engine, including a system plate ( ), an unfiltered air zone ( ), a filter housing ( ) containing a filter element ( ), and a filtered air zone ( ). The filter element hermetically seals and separates the unfiltered air zone ( ) from the filtered air zone. The unfiltered air zone ( ) is configured by a first half shell ( ), which is connected to the system plate ( ) in a fixed, hermetically sealed manner. The filter housing ( ) is also connected to the system plate in a fixed and sealed manner. The permanent, air-tight connection of the first half shell to the system plate allows the air filtration system to be manufactured in a simpler, more rapid and more cost effective manner by obviating the need for seals and connecting elements, as well as the need to assemble such parts.