Patents by Inventor Peter E. Helgesen

Peter E. Helgesen 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).

  • Insulated roofing structure
    Patent number: 4651489
    Abstract: An insulated roof structure includes insulating thermal elements which space attachment clips from an underlying purlin and introduce substantial thermal resistance above the purlin. Each insulating element includes a metal cap and an insulating body portion. The cap is enlarged at one end to overlappingly receive the end of an adjacent insulating block. And, the cap has a positioning device that aids accurate positioning of the overlying roof panels.
    Type: Grant
    Filed: October 24, 1983
    Date of Patent: March 24, 1987
    Assignee: AMCA International
    Inventors: Robert E. Hodges, John R. Bell, III, Peter E. Helgesen