Invention Grant
- Patent Title: Composite filter media with multiple fiber structures including nanofibers
-
Application No.: US17051498Application Date: 2019-04-30
-
Publication No.: US12290772B2Publication Date: 2025-05-06
- Inventor: Eric A. Janikowski , Huanling Liu , Christopher E. Holm , Mark T. Wieczorek , Barry Mark Verdegan
- Applicant: Cummins Filtration IP, Inc.
- Applicant Address: US IN Columbus
- Assignee: Cummins Filtration IP, Inc.
- Current Assignee: Cummins Filtration IP, Inc.
- Current Assignee Address: US IN Columbus
- Agency: Foley & Lardner LLP
- International Application: PCT/US2019/029955 WO 20190430
- International Announcement: WO2019/213107 WO 20191107
- Main IPC: B01D27/00
- IPC: B01D27/00 ; B01D39/16 ; B01D39/20 ; D04H3/00
Abstract:
A filter media comprises a first fiber layer and a second fiber layer positioned downstream of the first fiber layer. The first fiber layer has a first geometric mean fiber diameter of less than 1 μm such that the geometric standard deviation of fiber diameter is greater than 2. The second fiber layer has a second geometric mean fiber diameter of less than 1 μm such that the geometric standard deviation of fiber diameter is less than 2.
Public/Granted literature
- US20210170317A1 COMPOSITE FILTER MEDIA WITH MULTIPLE FIBER STRUCTURES INCLUDING NANOFIBERS Public/Granted day:2021-06-10
Information query
