Patent · US Expired

Impact machine

US6202757A · kind A · utility

6Cited by
3References
19Claims
0Family size

Assignee

Inventor

Key dates

Filing dateFeb 18, 1998
Grant dateMar 20, 2001
Priority date
Expiry dateFeb 18, 2018

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB23D15/14
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

When cutting metal rods, for instance, percussion machines are used that utilize stored kinetic energy which has been produced either mechanically or by the use of compressed gas. A drawback is the inability to accurately control the cutting process. The present invention makes use of hydraulics to control the process, thereby achieving total control of the course of the function.

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