Patent · US Expired

Treatment device

US5637278A · kind A · utility

8Cited by
8References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 26, 1995
Grant dateJun 10, 1997
Priority date
Expiry dateJul 26, 2015

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB01D24/4689
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A treatment device such as a filter device, containing a treatment bed (2) of particulate treatment medium. A fluidizing unit (9) associated with the treatment medium particles, for removing the treatment medium particles from the treatment bed for rejuvenation. The fluidizing unit (9) comprises a liquid supply duct (11) having an outlet (10) and which is arranged to be fed with liquid under pressure from outside the filter bed, and a discharge duct (14) having an inlet (15) and which projects beyond the outlet (10) of the liquid supply duct.

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