Patents by Inventor Arnulf Melbye

Arnulf Melbye has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Arrangement in roofing tiles
    Patent number: 4262462
    Abstract: Two diametrically opposite corners of roofing tiles are cut off to provide cut-outs which are stepped in several steps so as to have at least two edge portions parallel to the side edges of the tile, said edge portions lying closely adjacent matching edge portions of diagonally adjacent tiles of the roofing with a small clearance, whereby the passage or joint formed by the opposed matching edge portions will comprise two parallel non-aligned stretches with a connecting transverse, preferably wider stretch serving as an expansion chamber.
    Type: Grant
    Filed: December 21, 1978
    Date of Patent: April 21, 1981
    Assignee: A/S Norcem
    Inventor: Arnulf Melbye