Patent · US Expired

Debris removal from fluidized sand bed

US6651819B2 · kind B2 · utility

0Cited by
20References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 6, 2001
Grant dateNov 25, 2003
Priority date—
Expiry dateJul 6, 2021

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB07B1/28
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

Apparatus for removing debris from a fluidized sand bed. One or more troughs extend radially from a vertical shaft. Associated with each trough is a perforated chute. The apparatus is placed into the fluidized bed of sand, and rotated. As the apparatus rotates, the perforated chute sifts, or separates, debris from the fluidized sand. That is, the fluidized sand flows through the perforations, but the debris does not. When the apparatus is removed from the fluidized bed, the debris tumbles down the chute, into the troughs, if it has not already done so, and is captured.

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