Protective cap for a contact pipe in a welding torch in addition to a welding torch equipped with said cap
US7230203B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2003 |
| Grant date | Jun 12, 2007 |
| Priority date | — |
| Expiry date | Oct 22, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/1735
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention relates to a protective cap for at least one contact pipe of a welding torch, the pipe or pipes having a respective bore for guiding and contacting a respective welding rod that is fed through the pipe or pipes. The cap comprises a housing consisting of or coated with a poor electrically conductive material, for receiving the contact pipe and a bore, which allows the welding rod to emerge. The aim of the invention is to increase the service life of a contact pipe or a welding torch comprising at least one contact pipe of this type. To achieve this, at least two openings are provided in the housing for receiving at least two contact pipes and each opening is connected to one respective bore in the housing for receiving at least two contact pipes and each opening is connected to one respective bore in the housing. Each bore is positioned in such a way that it corresponds with the course of the welding rod in the contact pipe, once the protective cap has been mounted. This permits a welding rod to be fed through the bores of each contact pipe and each bore of the protective cap and to emerge at a welding point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.