Patent · US Expired

Drive system having a pin drive chain for a cutting machine for underground mining

US5931540A · kind A · utility

1Cited by

1References

12Claims

0Family size

Assignee

DBT Deutsche Bergbau-Technik GmbH · DE

Inventors

Gerhard Merten · L Atkinson Lane, DE
Frank Fischer · Grafenau, DE
Jorg Wirtz · Witten, DE

Key dates

Filing date	Aug 5, 1997
Grant date	Aug 3, 1999
Priority date	—
Expiry date	Aug 5, 2017

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21C29/145
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

In the drive system according to the invention for a cutting machine which can be moved along a chain conveyor and has a pin drive chain arranged in a chain receptacle of the chain conveyor, the pin drive chain is attached at each of its two ends to a hydraulic tensioning cylinder device, with the aid of which the chain slackness which forms in the pin drive chain can be compensated. At the same time, holding devices, such as end stops, are provided in the region of the tensioning cylinder devices, which holding devices support or fix the chain section of the pin drive chain which is respectively under tensile loading.

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