US Patent Issued to College Park Industries on June 23 for "Hydraulic prosthetic ankle" (Michigan Inventors)

ALEXANDRIA, Va., July 15 -- United States Patent no. 12,661,242, issued on June 23, was assigned to College Park Industries Inc. (Warren, Mich.).

"Hydraulic prosthetic ankle" was invented by Aaron John Taszreak (Warren, Mich.), Jacob Michael Drews (Washington, Mich.), Anna Mae Marlatt (Waterford, Mich.) and Kevin L'Heureux (Lincoln Park, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A prosthetic ankle device is disclosed herein. The prosthetic ankle device includes a hydraulic cylinder with a first chamber, a second chamber, and a piston separating the first chamber and the second chamber. The chambers are filled with hydraulic fluid. During plantarflexion, the hydraulic fluid flows between the first ...