ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,074, issued on March 18, was assigned to WELLELL INC. (New Taipei, Taiwan).
"Electromagnetic air pump" was invented by Kao-Hung Lin (New Taipei, Taiwan) and Kuan-Chih Chen (New Taipei, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention discloses an electromagnetic air pump including an air chamber operable to be compressed or expanded. The air chamber is defined by a platform surface and a rubber cap operable to be pressed downward. The rubber cap includes a support and a cover. During the operation of the electromagnetic air pump, the cover is configured to bear against the support with the platform surface when the cover ...