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:
Apr. 29, 2014
Filed:
Oct. 05, 2009
Alexandra Lazarevic, Weinheim, DE;
Robert Bader, Heidelberg, DE;
Rosemarie Kurzer, Otterberg, DE;
Heinz Reinhardt, Edingen, DE;
Alexandra Lazarevic, Weinheim, DE;
Robert Bader, Heidelberg, DE;
Rosemarie Kurzer, Otterberg, DE;
Heinz Reinhardt, Edingen, DE;
Carl Freudenberg KG, Weinheim, DE;
Abstract
A filter medium including a carrier layer and a microfiber layer applied thereon is characterized in that, with respect to the aim of providing a filter medium which has a relatively low pressure drop, and at the same time a good fraction separation rate and excellent dust storage capacity, the carrier layer has first fibers, which are designed as endless bicomponent fibers and spunbonded fibers, and the microfiber layer has second fibers, which are designed as endless melt-blown fibers.