Engine driven welding machine
US8987638B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2008 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Jun 4, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/1043
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An engine driven welding machine in which a welding generator is driven by an engine, and the engine performs an idle operation when a welding operation is stopped by including an engine stop signal forming circuit which forms a stop signal for stopping an operation of the engine when time of the idle operation exceeds a predetermined time, a direct-current power supply connected to an output terminal of the welding machine, voltage detecting means which detects a voltage change of the output terminal, a restart detecting circuit which forms a restart signal for restarting the engine when the detected voltage by the voltage detecting means shows a predetermined change mode for starting the welding operation, and an engine control circuit which stops the engine in response to the stop signal, and restarts the engine in response to the restart signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.