US Patent Issued to Mainspring Energy on Nov. 18 for "Energy storage and conversion in linear generators" (California Inventors)

ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,855, issued on Nov. 18, was assigned to Mainspring Energy Inc. (Menlo Park, Calif.).

"Energy storage and conversion in linear generators" was invented by Christopher Gadda (Palo Alto, Calif.), Matthew Roelle (Belmont, Calif.) and Adam Simpson (San Francisco).

According to the abstract* released by the U.S. Patent & Trademark Office: "Various embodiments of the present disclosure are directed towards free-piston combustion engines. As described herein, a driver section may be provided in a free-piston combustion engine for storing energy during an expansion stroke. The driver section may be configured to store sufficient energy to perform the subsequent stroke. In some embodiments...