Contact tip for arc welding apparatus
US4988846A · kind A · utility
12Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 1990 |
| Grant date | Jan 29, 1991 |
| Priority date | — |
| Expiry date | Mar 5, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/32
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A contact nozzle for a wire-shaped welding electrode for arc welding is designed as a contact tube in the front section and as a guide channel for the electrode in the rear section. The guide channel is formed by an open groove made in the nozzle body. The feed by the electrode is hindered in the rectilinear feed direction by a convex projection of the groove wall. Particles, dragged into the nozzle with the electrode, fall out of the open groove and therefore cannot displace the contact tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.