Consumable cartridge for a plasma arc cutting system
US9981335B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2015 |
| Grant date | May 29, 2018 |
| Priority date | — |
| Expiry date | May 11, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H1/3494
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A replaceable cartridge for a plasma arc torch includes a cartridge body having a first section and a second section. The first and second sections are joined at an interface to form a substantially hollow chamber. The interface provides a coupling force that secures the first and second sections together. The cartridge also includes an arc constricting member located in the second section; an electrode included within the substantially hollow chamber; and a contact start spring element affixed to the electrode. The spring element imparts a separating force that biases the electrode toward at least one of the first section or the second section of the body. The separating force has a magnitude that is less than a magnitude of the coupling force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.