Plasma torches
US4013866A · kind A · utility
4Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 1976 |
| Grant date | Mar 22, 1977 |
| Priority date | — |
| Expiry date | Mar 4, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K10/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A heating device which produces a plasma flame of elongated cross-section comprises a plasma torch and means for generating a magnetic field. The nozzle of the torch has an elongated exit aperture, across which the magnetic field is directed, and the torch incorporates at least one internal electrode arranged so that when an arc is struck between it and the nozzle the arc root at the nozzle will move along the aperture under the influence of the magnetic field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.