Enovis has been granted a patent for a welding system that monitors the output arc voltage to determine if it should be extinguished or maintained. The system compares the arc voltage to a voltage threshold and a temporal threshold, and if the voltage exceeds the threshold continuously for a set duration, the output weld current is stopped and the arc is extinguished. This helps reduce the probability of unwanted arc outs while ensuring quick and reliable arc breaking when needed. GlobalData’s report on Enovis gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Enovis, Compressed gas storage systems was a key innovation area identified from patents. Enovis's grant share as of September 2023 was 63%. Grant share is based on the ratio of number of grants to total number of patents.
Patent granted for a welding system that monitors and controls arc length
A recently granted patent (Publication Number: US11772181B2) describes a method and system for monitoring and controlling welding operations. The method involves monitoring the output arc voltage between a workpiece and a welding electrode during a welding operation. When the output arc voltage exceeds a voltage threshold level, indicating an increased arc length, a timer is triggered. If the output arc voltage continuously remains above the voltage threshold level until the timer exceeds a temporal threshold, the output weld current of the welding system is stopped, extinguishing the output arc.
The method also includes determining whether the welding operation should be continued. If the output arc voltage falls below the voltage threshold level before the timer exceeds the temporal threshold, the output arc is maintained with the output weld current. The voltage threshold level and the temporal threshold can be adjusted either statically or dynamically. Additionally, they can be adjusted based on factors such as the composition of the workpiece, the expected current range, the type of welding employed, or the electrode used during the welding process.
The patent also describes a welding system that includes an output monitor and a control module. The output monitor is connected to the welding electrode and is responsible for monitoring the output arc voltage during the welding operation. The control module, which is coupled to the output monitor, determines whether the output arc should be extinguished and stops the output weld current if the output arc voltage continuously exceeds the voltage threshold level for a period of time that exceeds the temporal threshold. The control module can also determine whether the welding operation should be continued and maintain the output arc with the output weld current if the output arc voltage falls below the voltage threshold level for a period of time that exceeds the temporal threshold.
Overall, this patent presents a method and system for monitoring and controlling welding operations by detecting changes in the output arc voltage and adjusting the output weld current accordingly. The ability to adjust the voltage threshold level and the temporal threshold based on various factors allows for more precise control and optimization of the welding process.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
