Patents Assigned to Elcraft A/S
  • Method and apparatus for controlling the relative humidity in concrete and masonry structures
    Patent number: 5368709
    Abstract: In a method for eliminating humidity from concrete and masonry structures by means of electroosmosis, current pulses which are supplied in a determined pattern are used. The pulse voltage is limited to .+-.40 V. In order to generate the pulses and feed the electrodes a special electronic control device is used.
    Type: Grant
    Filed: September 26, 1991
    Date of Patent: November 29, 1994
    Assignee: Elcraft A/S
    Inventor: Kjell Utklev