ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,958, issued on Oct. 21, was assigned to Intex Marketing Ltd. (Tortola, British Virgin Islands).
"Multi-pressure integrated air pump" was invented by Zhi Xiong Huang (Fujian, China), Ying Biao Zhang (Fujian, China) and Zheng Wen Lin (Fujian, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A high and low-pressure integrated air pump includes a single housing including an air inlet and an air outlet. A high-pressure pump is disposed within the housing and in fluid communication with the air inlet, and uses a first outlet passage to discharge to the air outlet. A low-pressure pump is also disposed within the housing and in fluid communication with ...