US Patent Issued on May 26 for "Hydraulic hinge for the controlled rotary movement of a door, a leaf or the like" (Italian Inventor)

ALEXANDRIA, Va., May 26 -- United States Patent no. 12,637,888, issued on May 26.

"Hydraulic hinge for the controlled rotary movement of a door, a leaf or the like" was invented by Luciano Bacchetti (Nave, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hydraulic hinge device for the controlled rotary movement of a closing element that can be anchored to a stationary support structure includes a shell, a pivot defining a first axis arranged to rotate around the first axis, and a system that controls the flow of a working fluid and that includes a first hydraulic working chamber fluidically connected to a second hydraulic working chamber and a first and a second stem slidable along respective second an...