Patents by Inventor Poul H. Evers

Poul H. Evers 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).

  • Panel, in particular for self-supporting roof structures and self-supporting roof structures assembled of such panels
    Patent number: 4441291
    Abstract: A hollow panel of extruded plastics for walls and roof structures and having at least two main ducts separated by a secondary duct divided into three or more subducts, one of which is dimensioned so as to accommodate an anchor bar intended for absorbing upwardly directed wind pressure. Each of the main ducts is divided into two channels by a thinner intermediate wall extending through the secondary duct or ducts.A self-supporting arcuate roof comprising such panels provided with coupling members forming together locking ducts wherein locking wedges or reinforcing bands of metal are inserted.The subducts of the panels are designed to resist pressure and torsional forces without separate reinforcing elements.
    Type: Grant
    Filed: September 9, 1981
    Date of Patent: April 10, 1984
    Assignee: Everlite A/A
    Inventors: Henryk Sokoler, Poul H. Evers