US Patent Issued to EVERLAST HEALTHCARE on July 22 for "Piston mechanism, fluid control mechanism and application thereof" (Chinese Inventor)

ALEXANDRIA, Va., July 23 -- United States Patent no. 12,366,307, issued on July 22, was assigned to EVERLAST HEALTHCARE Ltd. (Hong Kong).

"Piston mechanism, fluid control mechanism and application thereof" was invented by Haifeng Zhao (Hong Kong).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fluid control mechanism includes a chamber, a chamber wall, a piston provided within the chamber, and at least one fluid channel. A bottom portion of the chamber is configured to be in communication with the fluid channel. An opening connecting the fluid channel and the chamber is arranged at the bottom portion of the chamber. A piston mechanism has a chamber and a chamber wall, and a piston and a piston motion control...