公开(公告)号：US12089352B2

公开(公告)日：2024-09-10

申请号：US18263893

申请日：2022-01-18

Applicant: Carl Freudenberg KG

Inventor： Christopher Schaefer ,  Ingo Stephan ,  Markus Filler

IPC: B01D39/16 ,  B01D46/54 ,  B32B5/02 ,  B32B5/26 ,  B32B27/12 ,  B32B27/32 ,  F16K24/04 ,  F21S45/30 ,  H01M50/30 ,  H05K5/02

CPC classification number: H05K5/0213 ,  B01D39/1623 ,  B01D39/1692 ,  B01D46/543 ,  B32B5/022 ,  B32B5/266 ,  B32B27/12 ,  B32B27/322 ,  B01D2239/0216 ,  B01D2239/0618 ,  B01D2239/065 ,  B01D2239/1258 ,  B01D2279/45 ,  B32B2250/02 ,  B32B2307/724 ,  B32B2457/00

Abstract: A pressure equalising device for a housing, including an inside, an outside, and a lattice-like cage having a gas passage opening. The gas passage opening connects the inside and the outside in a differential pressure-dependent and flow-conducting manner. The gas passage opening is covered by a gas-permeable membrane which includes at least one nonwoven layer. The nonwoven layer includes fibers which are substantially completely sheathed by a sheath of an elastomer.

公开(公告)号：US10557561B2

公开(公告)日：2020-02-11

申请号：US15945747

申请日：2018-04-05

Applicant: Carl Freudenberg KG

Inventor： Christian Kleinke ,  Christopher Schaefer ,  Peter Kritzer

IPC: F16K15/14 ,  F16K31/126

Abstract: A pressure-compensation device for a housing includes: an inner side; an outer side; and a lattice-like cage having a gas opening. The gas opening connects the inner side and the outer side in a flow-conducting manner and is restricted, in a through-flow direction of the gas opening, by an inner edge and an outer edge. The gas opening is covered by a gas-permeable membrane. The membrane comprises a nonwoven-fabric composite part and has at least one nonwoven-fabric layer.

公开(公告)号：US20180292020A1

公开(公告)日：2018-10-11

申请号：US15945747

申请日：2018-04-05

Applicant: Carl Freudenberg KG

Inventor： Christian Kleinke ,  Christopher Schaefer ,  Peter Kritzer

IPC: F16K31/126

Abstract: A pressure-compensation device for a housing includes: an inner side; an outer side; and a lattice-like cage having a gas opening. The gas opening connects the inner side and the outer side in a flow-conducting manner and is restricted, in a through-flow direction of the gas opening, by an inner edge and an outer edge. The gas opening is covered by a gas-permeable membrane. The membrane comprises a nonwoven-fabric composite part and has at least one nonwoven-fabric layer.