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:
Sep. 15, 2020
Filed:
Nov. 02, 2018
Mann+hummel Gmbh, Ludwigsburg, DE;
Andreas Franz, Ludwigsburg, DE;
Torsten Fritzsching, Vaihingen, DE;
Nadine Donauer, Fellbach, DE;
Marcel Holzwarth, Fayetteville, NC (US);
Pedro Miguel Pereira Madeira, Bietigheim-Bissingen, DE;
Christoph Wittmers, Bietigheim-Bissingen, DE;
Manfred Winter, Bad Rappenau, DE;
Joachim-Paul Krieger, Reisbach, DE;
Martin Gruber, Gangkofen, DE;
MANN+HUMMEL GmbH, Ludwigsburg, DE;
Abstract
An annular filter element has a filter medium body configured to be flowed through by a fluid to be purified in a radial direction. A sealing element is arranged at the end face of the filter medium body and extends circumferentially around the end face. The sealing element has at least one first sealing section comprising a massive and large cross-sectional area and one or more second sealing sections with a cross-sectional area that is at least partially reduced in comparison to the large cross-sectional area. The one or more second sealing sections include a second sealing section with a groove-type recess, wherein the groove-type recess extends at least approximately across a length of the second sealing section with the groove-type recess or across a portion of said length.