Electrode for a contact start plasma arc torch and contact start plasma arc torch employing such electrodes
US9736918B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2016 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | Oct 18, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H1/3489
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A swirl ring component of a contact start plasma arc torch is provided. The swirl ring component includes a hollow body formed of a front portion and a rear portion along a longitudinal axis and defining an exterior surface and an interior surface. The swirl ring component also includes one or more gas passageways extending from the exterior surface to the interior surface in the front portion of the hollow body and a resilient element disposed relative to the interior surface in the rear portion of the hollow body and configured to pass at least a pilot arc current to an electrode body. The swirl ring component further includes a shoulder portion configured to retain the resilient element in the hollow body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.