公开(公告)号：US20210354063A1

公开(公告)日：2021-11-18

申请号：US17321404

申请日：2021-05-15

申请人： Hobbs Bonded Fibers NA, LLC

发明人： Karl VanBecelaere

IPC分类号： B01D39/16 ,  D04H1/435

摘要： A dual layer filter material for separating fluid or particulates from flowing air streams that is comprised of connected layers of nonwoven batting with one layer having a convoluted surface.

公开(公告)号：US20210358466A1

公开(公告)日：2021-11-18

申请号：US17323387

申请日：2021-05-18

申请人： Hobbs Bonded Fibers NA, LLC

发明人： Karl VanBecelaere

IPC分类号： G10K11/162 ,  B60R13/08 ,  D04H1/46

摘要： A dual layer nonwoven acoustic insulating material having a more densified layer and a less densified layer that is comprised of shoddy fibers and other fibers.

公开(公告)号：US11900907B2

公开(公告)日：2024-02-13

申请号：US17323387

申请日：2021-05-18

申请人： Hobbs Bonded Fibers NA, LLC

发明人： Karl VanBecelaere

IPC分类号： G10K11/162 ,  B60R13/08 ,  D04H1/46

CPC分类号： G10K11/162 ,  B60R13/08 ,  D04H1/46 ,  D10B2201/02 ,  D10B2321/021

摘要： A dual layer nonwoven acoustic insulating material having a more densified layer and a less densified layer that is comprised of shoddy fibers and other fibers.