Patents Assigned to Ian M. MacLennan
  • Patent number: 5365830
    Abstract: The assembly of the invention includes a pressure vessel having a size to fit in a usual home refrigerator for the domestic fermenting of a fermentable liquid mixture under pressure and under chilled conditions, The pressure vessel defines a closed fermentation chamber for containing a bath having an amount of fermentable liquid mixture effective to provide a pressurized atmosphere above the surface of the bath within the closed fermentation chamber during the fermenting process, A pressure relief valve controls the pressure within the fermentation chamber at a level sufficient to maintain safety conditions during the fermentation process, Pressurized gaseous material is introduced into the pressure vessel to enhance the fermentation process within the chamber. A spigot is part of an output discharge mechanism including a float used to remove fermented beverage from adjacent the surface of the bath to draw beverage from the pressurized vessel while a pressurized atmosphere remains in the vessel.
    Type: Grant
    Filed: August 16, 1993
    Date of Patent: November 22, 1994
    Assignee: Ian M. MacLennan
    Inventors: Ian M. MacLennan, Clifford B. Hewson, Marek Gnatowski, Andrew Koutsandreas
  • Patent number: 5235901
    Abstract: The assembly of the invention includes a pressure vessel having a size to fit in a usual home refrigerator for the domestic fermenting of a fermentable liquid mixture under pressure and under chilled conditions. The pressure vessel defines a closed fermentation chamber for containing a bath having an amount of fermentable liquid mixture effective to provide a pressurized atmosphere above the surface of the bath within the closed fermentation chamber during the fermenting process. A pressure relief valve controls the pressure within the fermentation chamber at a level sufficient to maintain safety conditions during the fermentation process. Pressurized gaseous material is introduced into the pressure vessel upon completion of the fermentation process to maintain pressure in the bath within the chamber.
    Type: Grant
    Filed: April 12, 1991
    Date of Patent: August 17, 1993
    Assignee: Ian M. MacLennan
    Inventors: Ian M. MacLennan, Clifford B. Hewson, Marek Gnatowski, Andrew Koutsandreas