Portable arc voltage wirefeed welding system
US4508954A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 18, 1984 |
| Grant date | Apr 2, 1985 |
| Priority date | — |
| Expiry date | May 18, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/125
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A portable wirefeed and control apparatus for use in consumable electrode arc welding systems which is capable of being powered by conventional AC or DC variable voltage or variable current supplies without modification of the power supply or the wirefeed and control apparatus. The portable wirefeed unit incorporates a wirefeed motor, a supply of weld wire, optional gas controls, and voltage regulating and protective control circuits all powered at welding arc voltage carried by the welding current supply conductor. The unit is circuit connected to the power supply by means of a single welding electrode supply conductor and a ground return. Electrode power, weld wire, optional shielding gas supply and welding gun control switch conductors are carried in a single flexible conduit extending between the control unit and a remote welding gun and wirefeed speed and thus wirefeed rate are partially responsive to variations in welding arc voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.