ALEXANDRIA, Va., June 10 -- United States Patent no. 12,290,965, issued on May 6, was assigned to WD RACING OY (Siuro, Finland).
"Venting valve" was invented by Pekka Penkkimaki (Siuro, Finland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A venting valve (1) for removing air from a vulcanising mould of a vehicle tyre, which comprises a valve body (2) having a venting channel (12), a movable valve insert (3) arranged in the venting channel (12), which valve insert (3) comprises a valve stem (4), one end of which is provided with a valve member (5) for opening and closing the venting channel (12), and a stroke limiter (6) for limiting an opening stroke of the valve insert (3), and a spring member (7) for pre...