Patent · US Active

Pressure-compensation device for a housing

US10557561B2 · kind B2 · utility

9Cited by

0References

19Claims

0Family size

Assignee

Carl Freudenberg KG · DE

Inventors

Christian Kleinke · Darmstadt, DE
Christopher E. Schaefer · Lebanon, US
Peter Kritzer · Hamm (Sieg), DE

Key dates

Filing date	Apr 5, 2018
Grant date	Feb 11, 2020
Priority date	—
Expiry date	Apr 5, 2038

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/10
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.