Patents Assigned to Calco, Ltd.
  • Patent number: 7014762
    Abstract: A device for the deionization of incoming water is disclosed. The device includes a tank and a generally hollow distributor tube in the tank for ingress into and downward movement of unpurified water through the tank. An opening adjacent the bottom of the generally hollow distributor tube and near the bottom of the tank distributes the unpurified water out of the generally hollow distributor tube. A mixed bed of purifying resin is within the tank, and surrounds the generally hollow distributor tube. The unpurified water travels upwardly through the tank where it is deionized to a high purity water by the mixed bed of purifying resin, after egress from the opening. The deionized water passes through a distributor and a filter before leaving the tank through an outlet.
    Type: Grant
    Filed: November 14, 2003
    Date of Patent: March 21, 2006
    Assignee: Calco, Ltd.
    Inventor: Michael M. Barlow
  • Patent number: 6776907
    Abstract: A device for the deionization of incoming water. The device includes a tank and a generally hollow distributor tube in that tank for ingress into and downward movement of the incoming water through that tank. Slots adjacent the bottom of the generally hollow tube and near the bottom of the tank are provided for distributing the incoming water out of the hollow tube. There is a bed of mixed bed ion exchange resin within the tank. This bed of resin surrounds the generally hollow tube, through which the incoming water travels upwardly. The water is deionized by the ion exchange resin, as it moves upwardly through the resin, after egress from the slots.
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: August 17, 2004
    Assignee: Calco, Ltd.
    Inventor: Michael M. Barlow