Patent · US Active

Filter unit for a switchgear cabinet

US9237674B2 · kind B2 · utility

8Cited by

31References

9Claims

0Family size

Assignee

RITTAL GMBH & CO. KG · DE

Inventors

Reiner Hartmann · Wettenberg, DE
Steffen Wagner · Burbach, DE
Stefan Schneider · Aachen, DE

Key dates

Filing date	Mar 15, 2011
Grant date	Jan 12, 2016
Priority date	—
Expiry date	Sep 6, 2031

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2279/45
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention relates to a filter unit for a switchgear cabinet, comprising a filter housing having an air passage that can be covered by an air passage grating at least to some extent.To allow such a filter unit to be maintenanced easily, it provided according to the invention that the air passage grating is hinged indirectly or directly to the filter housing and can be adjusted between a closed position and an opened maintenance position. The filter housing has a retainer which positively blocks a catch of the air passage grating in the maintenance position.

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