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Method for controlling cartridge of welding helmet having display function of welding operation time

  • US 8,659,509 B2
  • Filed: 11/19/2010
  • Issued: 02/25/2014
  • Est. Priority Date: 12/24/2009
  • Status: Active Grant
First Claim
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1. A method for controlling a cartridge of a welding helmet having a function to display a welding operation time, the method comprising a welding operation step, a cutting operation step, a grinding operation step and an X-mode operation step, which are automatically performed in sequence according to preset conditions and a light transmittance and operation time of a liquid crystal screen of the cartridge,wherein a control unit calculates an operation time of the liquid crystal screen indicating how long the liquid crystal screen is kept dark, and the calculated operation time is stored in a memory unit so as to be displayed on a display unit in a life mode step.

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