ALEXANDRIA, Va., June 2 -- United States Patent no. 12,644,263, issued on June 2.
"Device for closing and opening by manual pressure a drain of a sanitary fixture" was invented by Duilio Vinzia (Briga Novarese, Italy).
According to the abstract* released by the U.S. Patent & Trademark Office: "A device for closing and opening by manual pressure a drain of a sanitary fixture includes a tubular housing body configured to be associated to a closing plug, and a shank at least partially housed inside the housing body, the shank being configured to be connected to a drain outlet adapted to be occluded by the closing plug. The device further includes a drive spring, an annular rotor that is rotatable and is designed to define at least one first ...