ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,871, issued on April 7, was assigned to PIPE LINING ENTERPRISES INC. (Fort Lauderdale, Fla.).
"Pipe renovation filtration system" was invented by Larry W. Kiest Jr. (Fort Lauderdale, Fla.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A filtration system is used with a pipe repair system, such as a cured-in-place pipe lining system. Before, during, and/or after the repair of the pipe with the pipe lining system, air from inside the pipe is directed into a filtration system. The filtration system removes contaminants, such as VOCs and other harmful gases, particles, and the like, with a filter, and then the filtered air is exhausted from the system. ...