Consumable cartridge for a plasma arc cutting system
US11278983B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2019 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | Sep 13, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H1/3494
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A frame for a replaceable, unitary consumables cartridge configured for installation into a plasma arc torch. The frame includes a hollow body adapted to receive a translatable contact start electrode. The body has an internal surface and an external surface and includes: a substantially cylindrical metallic core; an electrically insulative overmolded plastic casing at least substantially surrounding a circumference of a distal end of the substantially cylindrical metallic core; and a set of flow passages fluidly connecting the external surface of the hollow body and the internal surface of the hollow body, the flow passages offset to impart a swirling fluid flow pattern to a plasma gases passing therethrough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.