Patents by Inventor Michael Bruggemann

Michael Bruggemann 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).

  • Patent number: 5119927
    Abstract: A conveyor belt for underground mining that is reinforced by reinforcement layers and is equipped with wear-resistant cover layers made from an elastomeric material is provided. The elastomeric cover layers are comprised of a halogen-free rubber mixture, a main component of which is ethylene vinyl acetate rubber (EVM), and aluminum hydroxide as a fire-proofing agent. In order to achieve a high fire-resistance while at the same time providing a good processability of the rubber mixture, the rubber mixture contains a small amount of stearyl amine. Thereby a calenderable rubber mixture is obtained which is characterized by a reduced stickiness to the calender rolls.
    Type: Grant
    Filed: May 3, 1991
    Date of Patent: June 9, 1992
    Assignee: Continental Aktiengesellschaft
    Inventor: Michael Bruggemann