Patents Assigned to CFM International Inc.
  • Adaptor for installing flue liners to direct vent fireplace inserts
    Patent number: 5590641
    Abstract: A method and adaptor assembly are provided for installing a direct vent firebox, such as a gas fireplace insert, into an existing fireplace. An exhaust flue liner and inlet flue liner are installed in the chimney of the existing fireplace. A plate flue collar is aligned above a fastener plate flue collar. The lower ends of the exhaust flue liner and inlet flue liner are connected to the fastener plate flue collar above an exhaust opening and inlet opening formed in the fastener slider plate, respectively.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: January 7, 1997
    Assignee: CFM International Inc.
    Inventor: Luu Q. Duong