ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,520,779, issued on Jan. 13.
"System for saturating a medium" was invented by Ziv Chamami (Tel Aviv, Israel).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fluid dispensing device using only gravity to provide fluid to plant growing medium, for example soil, to the point of either saturation or field capacity. The fluid dispensing device may comprise a mechanism to cease supply of fluid when a threshold amount of fluid in a plant growing medium is detected. The fluid dispensing device may be used to calculate field capacity of different soils. The invention further discloses a gravity powered device for irrigating an area evenly and at a constant rate o...