Patent · US Expired

Method of and arrangement for loosening, loading and transporting of stratified minerals in underground elongated front longwalls

US4620748A · kind A · utility

1Cited by

4References

17Claims

0Family size

Assignee

Bochumer Eisenhütte Heintzmann GmbH & Co. KG · DE

Inventors

Peter Heintzmann · Bochum, DE
Manfred Koppers · Sörup, DE
Karlheinz Bohnes · Bochum, DE
Heinz Kunzer · Herne, DE

Key dates

Filing date	Apr 6, 1984
Grant date	Nov 4, 1986
Priority date	—
Expiry date	Apr 6, 2004

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21C35/20
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A method of and an arrangement for loosening, loading and transporting of stratified minerals includes a single continuously rotating and forceably guided pulling organ, a plurality of loosening elements integrated in the pulling organ in its working run extending in a longitudinal direction of a longwall, and a plurality of transporting elements also integrated in the same single pulling organ at its transporting run located behind the working run at a back filling side, wherein the loosening elements perform loosening and loading functions, whereas the transporting elements perform the transporting functions in an opposite longitudinal direction of the longwall.

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