ALEXANDRIA, Va., June 16 -- United States Patent no. 12,654,205, issued on June 16, was assigned to Semper Vista (Walnut, Calif.).
"Pressure washer" was invented by Qiwei Qin (Chongqing, China) and Weiyan Hu (Chongqing, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pressure washer is provided in which the low-pressure water supplied to the unit is routed through thermally conductive channels in the housing to absorb heat generated by the motor and electronics before being pressurized for cleaning. The channels are arranged in a serpentine configuration around the motor, with optional cavities in the end caps to increase heat transfer surface area and improve cooling efficiency. Heat from the motor i...