Patents Assigned to A/S Hotaco
  • Plate-shaped roofing element
    Patent number: 4136223
    Abstract: Plate-shaped roofing element comprising: adhesive foam plastic having a surface facing upwards in a mounted position and having a covering plate comprised of bituminous roofing felt with surface facing the element being covered with a layer of gravel or pebbles, and a layer of glass fiber contacting said surface of said roofing felt and having through holes through which the adhesive foam plastic during foaming becomes adherent to said bituminous roofing felt.
    Type: Grant
    Filed: April 4, 1978
    Date of Patent: January 23, 1979
    Assignee: A/S Hotaco
    Inventor: Sven Harder
  • Mixing device
    Patent number: 4050677
    Abstract: A device for the in situ building up of fibre-reinforced mortars and plastics, said includes an inner tube serving to forward a stream of air-born fibres. Surrounding the inner tube is a jacket with means for supplying pressurized air thereto, and having at its front end an inward inclining slit or bores. Surrounding the jacket is an outer tube with means for supplying the product to be reinforced thereto, the outer tube having an outlet at its front end for passage of the mixture leaving the device.
    Type: Grant
    Filed: January 13, 1976
    Date of Patent: September 27, 1977
    Assignee: A/S Hotaco
    Inventor: Finn Benthin