US Patent Issued to DONGGUAN YORKWELL ELECTRICAL APPLIANCE on March 3 for "Safety switch with fool-proof function and toaster" (Chinese Inventor)

ALEXANDRIA, Va., March 3 -- United States Patent no. 12,564,289, issued on March 3, was assigned to DONGGUAN YORKWELL ELECTRICAL APPLIANCE Co. LTD. (Dongguan, China).

"Safety switch with fool-proof function and toaster" was invented by Ka Lok Ricky Wong (Dongguan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A safety switch with fool-proof function and a toaster with the same are provided. The switch includes two pairs of first contacts connected to a live wire, a pair of second contacts connected to a zero line, and a trigger structure. The two pairs of first contacts are connected in series in a power circuit. A trigger gap is formed between the first contacts and the second contacts. The trigger s...