Patent · US Expired

Cartridge filter for purifying gas

US7507271B2 · kind B2 · utility

5Cited by

9References

12Claims

0Family size

Assignee

Carl Freudenberg KG · DE

Inventors

Thomas Caesar · Weinheim, DE
Renate Tapper · Bensheim, DE
Thomas Schroth · Worms, DE

Key dates

Filing date	Mar 12, 2003
Grant date	Mar 24, 2009
Priority date	—
Expiry date	Jan 22, 2024

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2279/51
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention relates to a cartridge filter for purifying gases, said filter being especially embodied as a filter for fine or suspended matter. The inventive filter comprises a frame into which at least one folded package which consists of a filter material through which gas flows is introduced. The end pieces of the strips of frames are interconnected by corner connectors. said frame strips (1) consists of at least two individual elements (2,3) which are oriented perpendicularly to the direction of flow, engage with each other in a positively locking manner, and/ or can be interconnected.

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