Patent · US Expired

Automated wet sieving apparatus

US4116824A · kind A · utility

3Cited by
9References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 12, 1976
Grant dateSep 26, 1978
Priority date
Expiry dateNov 12, 1996

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB03B5/18
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

An automated wet sieving apparatus and process are provided comprising a wetting liquid distributor which is coupled by eccentric disks to a motor which drives the distributor in an orbital path for supplying the liquid onto a sieve. Means are provided for creating alternating vacuum and pressure below the sieve. The vacuum draws undersized particles whose size is being determined through the sieve and the pressure loosens blinding particles from the sieve. Preferably, the sieve is cyclically tilted as the wetting liquid is being distributed onto the sieve.

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