Patents Assigned to Lake Aid Inc.
  • Floating aerator having means to vary the length of the draft pipe
    Patent number: 4030859
    Abstract: The invention comprises a water circulator device for circulating the water in a lake, pond, or reservoir. The device comprises a raft having a wind driven shaft mounted thereon for vertical rotation. A mixing chamber is mounted beneath the raft with the upper edge of the chamber above the surface of the lake, pond, or reservoir. The lower end of the shaft has a propellor mounted thereon within the mixing chamber. A pair of vertical telescoping pipes are mounted beneath the chamber of reduced diameter in relation to the chamber.
    Type: Grant
    Filed: September 2, 1975
    Date of Patent: June 21, 1977
    Assignee: Lake Aid Inc.
    Inventor: Dale L. Henegar