Patent ID: 7819284
Filing Date: 2010-10-26
Classification: A47J

Abstract:
1. A method of controlling brewing by dispensing liquid in a beverage brewing machine, the method comprising the steps of: delivering liquid from a storage tank to a dispensing chamber while venting air from said dispensing chamber via a liquid delivery and venting arrangement; closing valves of said liquid delivery and venting arrangement; pumping air with an air pump into an interior of said dispensing chamber, and pumping liquid with a liquid pump from said dispensing chamber via a liquid discharge conduit with one end connected to an injector and the other end located at a predetermined level in said dispensing chamber, said liquid pump being disposed between the interior of said dispensing chamber and said injector, said injector configured to pierce and deliver liquid into a cartridge; and controlling the steps of pumping air into said interior of said dispensing chamber and pumping liquid from said dispensing chamber to said injector and controlling voltage to said air pump to control the volume of air delivered to said dispensing chamber to thereby control brewing time in said cartridge.