公开(公告)号：US20240390829A1

公开(公告)日：2024-11-28

申请号：US18694655

申请日：2022-09-22

Applicant: Donaldson Company, Inc.

Inventor： Rakesh K. Yadav ,  Daniel L. Tuma ,  Robert R. Levac ,  Byron G. Griffin ,  Jonathan M. Beckett ,  Anil Suthar ,  Robert J. Pannepacker, Jr.

IPC: B01D39/16 ,  B01D46/52

Abstract: Filtration media packs, filter elements, and media are disclosed, including media packs having a plurality of layers of single facer media wherein the layers of single facer media include a fluted sheet, a facing sheet, and a plurality of flutes extending between the fluted sheet and the facing sheet, with the fluted sheet and facing sheet formed of multi-layer media can include a polytetrafluoroethylene (PTFE) layer supported by a polymeric scrim layer.

公开(公告)号：US20230124690A1

公开(公告)日：2023-04-20

申请号：US17911612

申请日：2021-03-24

Applicant: Donaldson Company, Inc.

Inventor： Rakesh K. Yadav ,  Daniel L. Tuma ,  Robert R. Levac ,  Byron G. Griffin ,  Jonathan M. Beckett ,  Anil Suthar ,  Robert J. Pannepacker, Jr.

IPC: B01D46/52 ,  B01D39/16

Abstract: Filtration media packs, filter elements, and media are disclosed, including media packs having a plurality of layers of single facer media wherein the layers of single facer media include a fluted sheet, a facing sheet, and a plurality of flutes extending between the fluted sheet and the facing sheet, with the fluted sheet and facing sheet formed of multi-layer media can include a polytetrafluoroethylene (PTFE) layer supported by a polymeric scrim layer.

公开(公告)号：US20220062806A1

公开(公告)日：2022-03-03

申请号：US17414908

申请日：2019-12-16

Applicant: Donaldson Company, Inc.

Inventor： Anil Suthar ,  Richard Brandimarte ,  Robert J. Pannepacker, Jr. ,  Stuti S. Rajgarhia

IPC: B01D39/16 ,  B01D69/02 ,  B01D71/36

Abstract: A porous polytetrafluoroethylene (PTFE) membrane including a nonwoven web having a microstructure of substantially only microfibrils fused at crossover points, said membrane having a percent balance of orthogonal dimensions that is within 10%.