Patent · US Expired

Filter element

US5169528A · kind A · utility

83Cited by

8References

9Claims

0Family size

Assignee

SEITZ-FILTER-WERKE GMBH · DE

Inventors

Massoud Karbachsch · Göttingen, DE
Peter P. Breitbach · Bretzenheim, DE
Helmut Ruger · Pfaffen-Schwabenheim, DE

Key dates

Filing date	Dec 20, 1990
Grant date	Dec 8, 1992
Priority date	—
Expiry date	Dec 20, 2010

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC02F2201/006
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A regenerable deep bed filter element provided as a closed system, in the case of which a deep bed filter (21), disposed inside at least one hollow-cylindrical chamber (17), if formed by a bulk material filling of regenerable, filtration-active substances of a particulate and/or fibrous structure. The hollow-cylindrical chamber can be flowed through radially by means of porous inner and outer peripheral walls (18, 19). The deep bed filter can be regenerated by flushing back with water, steam or chemical cleansing agents, during which the filtration-active substances remain inside the chamber (17).

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