Patent · US Expired

Filtering system

US4539025A · kind A · utility

24Cited by
15References
23Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 26, 1984
Grant dateSep 3, 1985
Priority date
Expiry dateSep 26, 2004

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB01D46/71
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A filter system wherein a cylindrical shell having open ends and a gas-impervious wall with means for supporting a filter tube coaxially within the shell to form an annular chamber therebetween has means for securing the filter tube to the other open end, such that gases from the enclosure must pass through the filter tube into the annular chamber and then out of the cylindrical shell. A jet pulse means is provided to provide a jet pulse of fluid to the annular chamber to flex the filter tube inwardly to dislodge solids collected on the interior surface of the filter tube.

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