ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,441,641, issued on Oct. 14, was assigned to PULSE BURST SYSTEMS LLC (Richfield, Wis.).
"Bubble generator" was invented by Charles Otis (Milwaukee) and Kenneth E Neu (Hartford, Wis.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A bubble generator including a container having a side wall and a top wall defining a cavity. An insert is located within the cavity defining a gas path with a trap portion. The gas path being in communication with an exit in the container. The cavity including an opening receiving a gas accumulating within the cavity, the gas path allowing the accumulating gas to escape through the exit once the accumulating gas reaches a predet...