ALEXANDRIA, Va., June 18 -- United States Patent no. 12,325,087, issued on June 10, was assigned to Shenzhen Jueqi Technology Co. Ltd. (Shenzhen, China).
"Portable spot welder" was invented by Xiaowei Huang (Hunan, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a portable spot welder. The spot welder includes a control board; a battery connected to the control board; an analog-to-digital converter (ADC) detection module connected to the control board; a power metal oxide semiconductor (MOS) module connected to the battery; an optical-coupler isolation driving module connected to the power MOS module and the control board; a battery protection module connected to the battery and the control...