ALEXANDRIA, Va., July 30 -- United States Patent no. 12,371,241, issued on July 29.
"Modular spring bias cavity" was invented by Ming Yong Li (Montebello, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A modular spring bias cavity device which includes a base and side external walls extending from the base. A cover fits over the side external walls. A support structure has a support structure first cavity. The support structure is mounted to the base. A suspension frame has a first suspension frame cavity that fits over the support structure first cavity. The suspension frame is formed as a resilient and flexible structure. A suspension frame overlap extends downwardly at a periphery of the extension ...