Patent · US Expired

Tunnel driving apparatus

US4778220A · kind A · utility

1Cited by

5References

10Claims

0Family size

Inventors

Klaus Linde · Grafenau, DE
Josef Klusener · Bergkamen, DE

Key dates

Filing date	Dec 15, 1986
Grant date	Oct 18, 1988
Priority date	—
Expiry date	Dec 15, 2006

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21D9/0879
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

Tunnel driving apparatus includes a full-face cutting machine 2 mounted, preferably vertically and laterally pivotably, in a drive shield 1. The cutting machine is displaceable, by means of feed rams 16, towards a working face. The cylinders 19 of the feed rams are secured to the machine body 3 of the full-face cutting machine, and act as guide shoes for slidably supporting the cutting machine on guide rails 6 fixed to the drive shield.

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