Digital meter for cutting or welding system and method of displaying digital data for same
US5630954A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 19, 1995 |
| Grant date | May 20, 1997 |
| Priority date | — |
| Expiry date | Dec 19, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/0956
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An apparatus and method for displaying data to a user of a cutting or welding system is provided. The apparatus preferably has an arc torch including at least an electrode having an arc discharge end and means for creating an electrical arc extending from the electrode to a workpiece and a cutting or welding power source operatively connected to the arc torch for supplying power to the arc torch. The cutting or welding power source preferably includes a power circuit having an electrical input line positioned to receive power from an external power supply, a transformer having a primary side connected to the input line and a secondary side, a rectifier connected to the secondary side of the transformer, and an output line connected to the rectifier. The power source also has a sensor connected to the secondary side of the transformer for sensing an electrical signal representative of at least either a voltage level or a current level, a digital display positioned to display digital data to a user of a cutting or welding system, and a display controller operatively connected to the sensor and the digital display for controlling the digital display responsive to the sensor. The displ…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.