Patent · US Expired

Plough guide for a chain-pulled plough

US7641286B2 · kind B2 · utility

2Cited by

3References

9Claims

0Family size

Assignee

DBT GMBH · DE

Inventors

Gerhard Siepenkort · Ascheberg, DE
Adam Klabisch · Dortmund, DE
Norbert Hesse · Bochum, DE
Klaus Duhnke · Bochum, DE
Andre Göller · Werne, DE

Key dates

Filing date	Mar 15, 2006
Grant date	Jan 5, 2010
Priority date	—
Expiry date	Mar 31, 2026

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21C35/12
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A plough guide trough for plough guides of chain-drawn coal ploughs, comprising two superposed chain guide ducts separated by an integrally cast sliding spacer member, with a top guide strip, a bottom guide beam and a bottom slideway for guiding the plough. The top chain guide duct is covered by a front wall comprising the guide strip and merging into the guide beam and a slot lead-through for a plough guiding hook or plough knife is formed between the guide beam and the slideway. Pockets in the front wall receive a toggle coupling for neighboring plough guide troughs, wherein the front wall, the guide strips, the guide beam, the pockets and a back wall comprising the slideway form a one-piece casting extending over the length of the plough guide trough.

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