Patents Assigned to Allied Water Corporation
  • Water purification process and system
    Patent number: 4243523
    Abstract: Apparatus is described for purifying or desalinating relatively small quantities of water using one or a few membrane units with relatively modest power requirements. The apparatus uses a pump, an eductor or a combination of both in recirculating a portion of the feed water through a reverse osmosis membrane assembly. The method includes recirculating a portion of the feed water through the membrane assembly and discharging a portion of the recirculated feed water from the system.
    Type: Grant
    Filed: August 7, 1978
    Date of Patent: January 6, 1981
    Assignee: Allied Water Corporation
    Inventor: John P. Pelmulder