Patent · US Expired

Cutting machine

US4098539A · kind A · utility

7Cited by

7References

6Claims

0Family size

Assignee

Vereinigte Osterreichische Eisen- und Stahlwerke - Alpine Montan Aktiengesellschaft · AT

Inventors

Alfred Zitz · Zeltweg, AT
Otto Schetina · Zeltweg, AT
Peter Kogler · Zeltweg, AT
Arnulf Kissich · Zeltweg, AT

Key dates

Filing date	Aug 31, 1976
Grant date	Jul 4, 1978
Priority date	—
Expiry date	Aug 31, 1996

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21D9/1086
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A cutting machine has at each side of a universally pivotable cutter boom a cutting head which is rotatably supported around an axis extending vertically to the longitudinal direction of the cutter boom and which is advanced in direction of its axis when the cutter boom is pivoted. The cutting heads are propelled by a drive unit via a reduction gearing arranged within the cutter boom, the last stage of the reduction gearing being arranged within cutting heads which are hollow.

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