Patent · US Expired

Method and apparatus for reclaiming foundry sand

US5433389A · kind A · utility

1Cited by

7References

15Claims

0Family size

Assignee

Georg Fischer Giessereianlagen AG · CH

Inventors

Jovo Laskovic · Schaffhausen, CH
Heinz Schneble · Rielasingen-Worblingen, DE
Peter Rossmanith · Baden, AT

Key dates

Filing date	Jun 30, 1993
Grant date	Jul 18, 1995
Priority date	—
Expiry date	Jun 30, 2013

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S241/10
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A method and apparatus for reclaiming foundry sand wherein the speed of the rotor and/or the drum and, thus, the resulting striking, shearing and friction forces are adapted or matched to the changing surface hardness of the quartz grains to be processed during the process duration. The drum comprises two drum halves separated transversely to the rotational axis, a sand inlet and a suction removal device.

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