Patent 10117548 was granted and assigned to Bobrick Washroom Equipment, Inc on November, 2018 by the United States Patent and Trademark Office.
A foam dispenser includes a dispensing outlet, a pre-mixing chamber receiving liquid from a liquid source and air from an air source, a mixing chamber downstream of the pre-mixing chamber and proximate the dispenser outlet, and a first conduit coupling the pre-mixing chamber to the mixing chamber.