Patents by Inventor Roland L. Krieger

Roland L. Krieger 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).

  • V-band coupling for an explosion-proof enclosure
    Patent number: 5411162
    Abstract: A V-band coupling for use on an explosion-proof enclosure. The V-band coupling includes a V-band having a toughened layer along its interior surfaces for gripping the flanges on the enclosure which the V-band engages when it is installed on the enclosure. The roughened layer results in an increased coefficient of friction between the V-band and flanges which is effective for reducing the load experienced by the trunnion joints of the coupling during explosion events thereby allowing the explosion-proof enclosure to withstand high internal pressures without system failure.
    Type: Grant
    Filed: July 31, 1992
    Date of Patent: May 2, 1995
    Assignee: Allen-Bradley Company, Inc.
    Inventors: Joseph E. Koziczkowski, Jeffrey R. Annis, Roland L. Krieger, Jerome P. Stache