Electric arc welder and controller therefor
US6002104A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 17, 1998 |
| Grant date | Dec 14, 1999 |
| Priority date | — |
| Expiry date | Apr 17, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/0953
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A microprocessor based controller with a JAVA virtual machine used to control a specific electric arc welder having a switching type power supply for creating a welding cycle with a real time current waveform constituting several control parameters by rapidly switching a D.C. current in a controlled fashion by a pulse width modulator, which controller displays a waveform generated on an electrically operated waveform screen; allowing manual adjustment of at least a portion of the waveform displayed on the waveform screen to generate a new waveform on the waveform screen; and, operating the pulse width modulator to cause the power supply to create a real time waveform corresponding to the new waveform to execute the control parameters by the electric arc welder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.