Patent ID: 6823771
Filing Date: 2004-11-30
Classification: A47J

Abstract:
In a device for brewing of beverage from grounds during a brewing cycle, the device comprising a lower container assembly having a closed bottom and open top for receiving and heating water, an upper container assembly for receiving brewed beverage, said upper container assembly removably connected and hermetically sealable to said lower container assembly, a grounds basket nested into the top of said lower container assembly and having upper and lower perforated retention plates permitting passage of heated water and steam therethrough to said upper container assembly, said basket having a bottom wall opening to a vertical hollow stem having a lower end extending proximate to the bottom of said lower container assembly, for passage of heated water and steam into said grounds basket, said lower container assembly having a pressure relief valve in the wall thereof, the improvement comprising:an injector assembly comprising a floating piston, said floating piston being free to slide up and down in said hollow stem and having a lower flat surface to 8 microinch finish, or finer, said injector assembly further comprising a nozzle at the lower end of said hollow stem, the nozzle having an orifice, preferably, of 0.8-1.0 mm (0.32-0.039 inch) diameter and having an upper flat surface to 8 microinch, or finer, whereby said floating piston caps said orifice when resting on said nozzle.