Patents by Inventor Jan T. Borjeson

Jan T. Borjeson 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).

  • Method of and means for sealing expansion and contraction joints of buildings and pavements
    Patent number: 4141189
    Abstract: A novel method is disclosed for installing elongated hollow resilient sealing members in the expansion and contraction joints of buildings and pavements by exerting force through an opening in the wall thereof on a limited area of the interior surface of the hollow resilient sealing members to cause their hollow cross-sectional dimensions to expand into the joint and contract transversely of the joint. Structural modifications of elongated hollow resilient sealing members required to adapt them for installation by the novel method are described. Novel sealing members having structural features required for installation by the novel method are disclosed.
    Type: Grant
    Filed: May 20, 1977
    Date of Patent: February 27, 1979
    Inventor: Jan T. Borjeson