Patents Assigned to Marlan Company
  • Water conditioning device
    Patent number: 3974071
    Abstract: A water conditioning device for conditioning the cold water supply to a beverage vending machine. The device uses a spirally twisted strip of corrosion and lime scale inhibiting copper-nickel alloy contained within a cylindrical casing through which the cold water is delivered. The spiral strip churns the water for more complete contact of the water with the strip surfaces as the water flows through the casing.
    Type: Grant
    Filed: February 26, 1975
    Date of Patent: August 10, 1976
    Assignee: Marlan Company
    Inventors: Lyman D. Dunn, John Shields