Patents by Inventor Paul T. Hjaeresen

Paul T. Hjaeresen 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).

  • Adjustable roller support for a rotary drum
    Patent number: 4344596
    Abstract: A rotary kiln having a live ring is supported by a pair of rollers on shafts. The ends of each shaft are supported by bearings carried at the ends of a weigh beam having a rocking bearing so that the rollers can tilt to follow changes in the slope of the kiln. To allow the rollers to follow any axial movement of the live ring, upon thermal expansion or contraction of the kiln, the rocking bearing is slidable on a partly cylindrical segment.
    Type: Grant
    Filed: May 5, 1980
    Date of Patent: August 17, 1982
    Assignee: F. L. Smidth & Co.
    Inventor: Paul T. Hjaeresen