ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,209,896, issued on Jan. 28, was assigned to Waumer Oy (Helsinki).
"Method and device for reading the water meter" was invented by Mika Pukari (Helsinki).
According to the abstract* released by the U.S. Patent & Trademark Office: "A water meter reading device having a piston (503) or a membrane (527) that moves with the pressure changes of the water pipe (301, 501, 601) network. The movement charges a capacitor (704) with electric energy released for reading the water meter. This makes it possible to realize the system without a battery, as the electricity needed for reading the water meter, and communicating the water meter reading to the water company, is used at the same moment tha...