US Patent Issued to Intex Marketing on Oct. 21 for "Voltage regulation and speed regulation control circuit of an air pump" (Chinese Inventors)

ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,962, issued on Oct. 21, was assigned to Intex Marketing Ltd. (Tortola, British Virgin Islands).

"Voltage regulation and speed regulation control circuit of an air pump" was invented by Zhi Xiong Huang (Fujian, China) and Ying Biao Zhang (Fujian, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A voltage regulation and speed regulation control circuit (100, 130, 200, 250) of an air pump (102) is provided. The voltage regulation and speed regulation control circuit (100, 130, 200, 250) may comprise a chopper power supply circuit (104, 202), a full bridge rectifier circuit (106, 204) and a switch (108, 212). The switch (108, 212) may be used to swi...