×

Apparatus and method for heating and cutting an electrically-conductive workpiece

  • US 3,153,133 A
  • Filed: 08/11/1961
  • Issued: 10/13/1964
  • Est. Priority Date: 08/11/1961
  • Status: Expired due to Term
First Claim
Patent Images

1. A METHOD OF HEATING A METAL WORKPIECE, WHICH COMPRISES PROVIDING AN ELECTRICAL PLASMA-JET TORCH HAVING A BACK ELECTRODE AND A NOZZLE ELECTRODE, EFFECTING FLOW OF GAS THROUGH SAID TORCH AND OUT THE NOZZLE OPENING IN SAID NOZZLE ELECTRODE TO THE VICINITY OF A METAL WORKPIECE, MAINTAINING A FIRST HIGH-CURRENT ELECTRIC ARC THROUGH SAID GAS BETWEEN SAID BACK ELECTRODE AND SAID WORKPIECE, AND CONCURRENTLY MAINTAINING A SECOND HIGH-CURRENT ELECTRIC

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×