Power supply and control equipment for a resistance welding machine
US6825435B1 · kind B1 · utility
13Cited by
6References
31Claims
0Family size
Inventor
Key dates
| Filing date | Mar 12, 2003 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | Mar 12, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K11/26
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A power supply and control equipment for a resistance welding machine including a battery, battery charger, transistor or mechanical switches, pulse width modulation controller, a unit for generating either constant or time varying power, voltage, or current references.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.