Patents by Inventor Gerhard Hirschka

Gerhard Hirschka 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: 9278493
    Abstract: The invention relates to a system for producing conveyor belts having a rope core, for example a wire rope core, comprising at least one rope unwinding unit having a plurality of rope reels, from which the ropes to be embedded in the conveyor belt are unwound, a combining unit in which the ropes, which are under tensile stress and run in the longitudinal belt direction parallel to one another in one plane, are combined with one or more raw rubber webs to form a raw belt, and a vulcanization press in which the raw belt is vulcanized by means of pressure and/or heat forming the conveyor belt. Said system is characterized in that the rope unwinding unit is designed as a rope unwinding and tensioning unit, in which each rope is individually tensioned to the required production tension.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: March 8, 2016
    Assignee: SIEMPELKAMP MASCHINEN—UND ANLAGENBAU GMBH
    Inventors: Steffen Aumueller, Gerhard Hirschka, Axel Weiss
  • Publication number: 20130098525
    Abstract: The invention relates to a system for producing conveyor belts having a rope core, for example a wire rope core, comprising at least one rope unwinding unit having a plurality of rope reels, from which the ropes to be embedded in the conveyor belt are unwound, a combining unit in which the ropes, which are under tensile stress and run in the longitudinal belt direction parallel to one another in one plane, are combined with one or more raw rubber webs to form a raw belt, and a vulcanization press in which the raw belt is vulcanized by means of pressure and/or heat forming the conveyor belt. Said system is characterized in that the rope unwinding unit is designed as a rope unwinding and tensioning unit, in which each rope is individually tensioned to the required production tension.
    Type: Application
    Filed: February 17, 2011
    Publication date: April 25, 2013
    Inventors: Steffen Aumueller, Gerhard Hirschka, Axel Weiss