Patents by Inventor Wolfgang Kerwel

Wolfgang Kerwel 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: 6994210
    Abstract: A conveyor belt (2) includes a reinforcement (4) built up of at least one reinforcement layer (4a, . . . ) which includes fabric or cord and cover plates (8a, 8b) can be arranged on the carrier side and/or running side with the cover plates being made of elastomer or a rubber mixture. In order to prevent baking-on and dirtying during transport of the different goods, especially mass goods, the conveyor belt (2) is provided with a practice-proven durable and permanent anti-adhering surface. A plastic coating (10) is applied to the conveyor belt (2) on the carrier side and is an anti-adhering coating. The plastic coating (10) preferably is made of ultra high molecular polyethylene. The polyethylene foil (10) can be vulcanized to the carrier side cover plate (8a) or, in lieu of the carrier side cover plate (8a), the polyethylene foil can be vulcanized directly to the reinforcement (4) comprising at least one rubberized reinforcement layer (4a, . . . ).
    Type: Grant
    Filed: May 22, 2002
    Date of Patent: February 7, 2006
    Assignee: ContiTech Transportbandsysteme GmbH
    Inventors: Wolfgang Kerwel, Hans Küppers, Meinolf Ziebarth
  • Publication number: 20040140180
    Abstract: 1. Conveyor belt (2) having plastic coating (10).
    Type: Application
    Filed: November 24, 2003
    Publication date: July 22, 2004
    Inventors: Wolfgang Kerwel, Hans Kppers, Meinholf Ziebarth