Parts in place torch structure
US4940877A · kind A · utility
42Cited by
7References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 15, 1989 |
| Grant date | Jul 10, 1990 |
| Priority date | — |
| Expiry date | Sep 15, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H1/3473
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A plasma arc cutting torch embodying an electrode having a swirl tube and a nozzle thereabout, a spring mechanism bearing on the swirl tube and nozzle being caused by them to complete a circuit, the circuit not becoming completed in the absence of one of or both the swirl tube and nozzle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.