Patent · US Expired

Air filter unit with several filter elements

US7132007B1 · kind B1 · utility

20Cited by

11References

36Claims

0Family size

Assignee

BLÜCHER GMBH · DE

Inventors

Hasso von Blucher · Erkrath, DE
Ludovic Ouvry · Mülheim an der Ruhr, DE
Stefan Kamper · Ratingen, DE
Michael Moskopp · Schwalmtal, DE
Ernest De Ruiter · Leverkusen, DE
Bertram Böhringer · Erkrath, DE

Key dates

Filing date	Mar 25, 2004
Grant date	Nov 7, 2006
Priority date	—
Expiry date	Jan 13, 2025

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2259/4508
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A filter unit for the purification of air includes at least a first filter element, which contains granular, especially spherical, activated carbon as an adsorbent material, and at least a second filter element, which contains a combination of granular, especially spherical, activated carbon and activated carbon fibers as an adsorbent material. The filter unit is suitable especially for use in ventilation plants, ventilation systems, air-conditioning systems and the like.

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