Patents by Inventor Ralf Martens

Ralf Martens 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).

  • Grinding roller of a roller mill
    Patent number: 9272284
    Abstract: The grinding roller of a roller mill according to the invention consists essentially of a roller shaft, a main roller body and an external wear ring having a wear protection, wherein the connection between the roller shaft and the main roller body is formed by a shrink fit. The main roller body is formed by at least two coaxially arranged intermediate rings.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: March 1, 2016
    Assignee: ThyssenKrupp Industrial Solutions AG
    Inventors: Ralf Martens, Herbert Pingel
  • GRINDING ROLLER OF A ROLLER MILL
    Publication number: 20130248630
    Abstract: The grinding roller of a roller mill according to the invention consists essentially of a roller shaft, a main roller body and an external wear ring having a wear protection, wherein the connection between the roller shaft and the main roller body is formed by a shrink fit. The main roller body is formed by at least two coaxially arranged intermediate rings.
    Type: Application
    Filed: November 28, 2011
    Publication date: September 26, 2013
    Applicant: THYSSENKRUPP POLYSIUS AG
    Inventors: Ralf Martens, Herbert Pingel
  • Ventilation element for a cooler
    Patent number: 6997009
    Abstract: Ventilation element for a cooler for cooling bulk material, comprising a tray-like component provided with at least one opening for the supply of cooling gas as well as an insert which can be releasably fixed in the tray-like component and forms a support surface which can be ventilated from below for the bulk material, the insert consisting of a plurality of longitudinal profiled sections and connecting elements disposed transversely with respect thereto. The longitudinal profiled sections and the connecting elements are constructed in such a way that they can be pushed into one another during assembly of the insert.
    Type: Grant
    Filed: February 2, 2004
    Date of Patent: February 14, 2006
    Assignee: Polysius AG
    Inventor: Ralf Martens
  • Ventilation element for a cooler
    Publication number: 20040168340
    Abstract: Ventilation element for a cooler for cooling bulk material, comprising a tray-like component provided with at least one opening for the supply of cooling gas as well as an insert which can be releasably fixed in the tray-like component and forms a support surface which can be ventilated from below for the bulk material, the insert consisting of a plurality of longitudinal profiled sections and connecting elements disposed transversely with respect thereto. The longitudinal profiled sections and the connecting elements are constructed in such a way that they can be pushed into one another during assembly of the insert.
    Type: Application
    Filed: February 2, 2004
    Publication date: September 2, 2004
    Applicant: POLYSIUS AG
    Inventor: Ralf Martens