Patents Assigned to Elgin Edwards
  • Reverse-osmosis water purifier apparatus and method
    Patent number: 4391712
    Abstract: An apparatus and method whereby after a reverse-osmosis water purifier system has been shut down, the first quantity of water, which emanates from the reverse-osmosis filter, does not flow through the pure water storage tank but instead to the drain. Therefore, the water in the reverse-osmosis filter, and which has become contaminated as the result of standing in the filter so that a substantial amount of osmosis can occur, does not contaminate the pure water in the storage tank or system but instead is discarded.
    Type: Grant
    Filed: July 21, 1981
    Date of Patent: July 5, 1983
    Assignees: Richard W. Beall, Jr., Louis J. Favara, Richard L. Gausewitz, Richard F. Carr, Allan Rothenberg, Elgin Edwards
    Inventors: Truman V. Tyler, Robert B. Sprague