Plasma torch
US4843208A · kind A · utility
6Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1987 |
| Grant date | Jun 27, 1989 |
| Priority date | — |
| Expiry date | Dec 23, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H1/3463
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A plasma torch head adapted to cut longitudinal slots in tubes from the interior is disclosed. The plasma torch head includes an outer body made of reinforced fiberglass. An adhesive is used to affix fiberglass components of the torch head together to form a gas tight seal. As a cut is made, the outer body of the torch becomes charred. At the end of each cut the torch head is either replaced or rebuilt. Gas to support the plasma and electric power is supplied to the torch head via an electrically conductive tube concentric with the major axis of the torch head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.