Patent · US Expired

Plough for underground mining

US7314253B2 · kind B2 · utility

2Cited by

2References

8Claims

0Family size

Assignee

DBT GMBH · DE

Inventors

Uwe Tillessen · Kamen, DE
Norbert Hesse · Bochum, DE
Gerhard Siepenkort · Ascheberg, DE
Klaus Duhnke · Bochum, DE
Adam Klabisch · Dortmund, DE

Key dates

Filing date	Jan 6, 2005
Grant date	Jan 1, 2008
Priority date	—
Expiry date	Jan 6, 2025

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21C27/35
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A coal plough for underground mining has a plough body that is guided along a plough guide. The plough body has at least one foot piece which receives a sliding skid. The sliding skid has at least one contact surface formed on its underside, which surface slides on a rail of the plough guide when the sliding skid is in its operating position. The sliding skid has first and second wear inlays on an underside which is arranged in the area of the highest load. The sliding skid can withstand high mechanical loads for a longer period of use.

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