Filter element with regenerable bulk material filling and method for making same
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United States of America Patent
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Mar 1, 1994
Issued Date -
N/A
app pub date -
Nov 19, 1992
filing date -
Dec 29, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A regenerable deep bed filter element and method for making it, the element being provided as a closed system, in the case of which a deep bed filter (21), disposed inside at least one hollow-cylindrical chamber (17), is formed by a bulk material filling of regenerable, filtration-active substances of a particulate and/or fibrous structure. The hollow-cylindrical chamber accommodates radial flow by means of porous inner and outer peripheral walls (18, 19). The deep bed filter can be either washed, or regenerated by flushing back with water, steam or chemical cleansing agents, during which the filtration-active substances remain inside the chamber (17).
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