Plasma-arc spraying torch
US4140892A · kind A · utility
25Cited by
8References
12Claims
0Family size
Inventor
Key dates
| Filing date | Feb 14, 1977 |
| Grant date | Feb 20, 1979 |
| Priority date | — |
| Expiry date | Feb 14, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H1/42
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A plasma-arc spraying torch is disclosed which comprises a cathode unit and a separable anode unit which units are connected to each other approximately at a section of the torch in which the cathode of the torch is mounted on a cathode supporting member. The connection of the units and the mounting of their parts are all self-centering. Each unit has its own separate cooling circuit. Cooling of the anode nozzle is provided by a helical water duct within a nozzle holder member surrounding the anode nozzle. The nozzle holder and cathode supporting members are each at least laterally embedded in body parts of insulating material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.