Patent · US Expired

Cutting machine

US4108494A · kind A · utility

22Cited by
7References
6Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMay 13, 1977
Grant dateAug 22, 1978
Priority date
Expiry dateMay 13, 1997

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE21C35/04
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

A cutting machine having a universally movable cutting arm and cutting head assembly and a movable loading ramp assembly thereunder and means operatively associated with the cutting arm and loading ramp for controlling the operation thereof so as to prevent contact between the cutting arm and loading ramp by maintaining the vertical spacing therebetween in excess of a predetermined minimum.

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