Patents by Inventor Peter Henry Radziszewski

Peter Henry Radziszewski 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).

  • Vertical grinding mill, screw shaft, and method of designing and/or manufacturing a screw shaft
    Patent number: 10926269
    Abstract: A screw shaft for a vertically stirred grinding mill is arranged so as to be accommodated within a grinding chamber of the grinding mill while extending in a longitudinal direction. The screw shaft comprises a central shaft and at least one screw flight surrounding the central shaft, and the central shaft comprises an outer shaft wall defining a cavity within the interior of the central shaft, which cavity is closed at least at one longitudinal end of the central shaft.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: February 23, 2021
    Assignee: Metso Minerals Industries, Inc.
    Inventor: Peter Henry Radziszewski
  • VERTICAL GRINDING MILL, SCREW SHAFT, AND METHOD OF DESIGNING AND/OR MANUFACTURING A SCREW SHAFT
    Publication number: 20190168231
    Abstract: A screw shaft for a vertically stirred grinding mill is arranged so as to be accommodated within a grinding chamber of the grinding mill while extending in a longitudinal direction. The screw shaft comprises a central shaft and at least one screw flight surrounding the central shaft, and the central shaft comprises an outer shaft wall defining a cavity within the interior of the central shaft, which cavity is closed at least at one longitudinal end of the central shaft.
    Type: Application
    Filed: December 1, 2017
    Publication date: June 6, 2019
    Applicant: Metso Minerals Industries, Inc.
    Inventor: Peter Henry Radziszewski
  • VERTICAL GRINDING MILL, GRINDING MEDIA HANDLING SYSTEM, GRINDING MEDIA DISCHARGE DEVICE, AND METHOD FOR HANDLING GRINDING MEDIA
    Publication number: 20190168233
    Abstract: A grinding media handling system for a vertical grinding mill comprises: a reservoir; a pump, such as a sump pump or a horizontal pump, for pumping water and/or a slurry of material to be ground from the reservoir via an inlet in an upper section of the vertical grinding mill into a grinding chamber of the mill; means for adding grinding media to the water and/or slurry upstream and/or downstream of the pump; and means for discharging slurry and grinding media from a lower section of the vertical mill.
    Type: Application
    Filed: December 1, 2017
    Publication date: June 6, 2019
    Applicant: Metso Minerals Industries, Inc.
    Inventors: Peter Henry Radziszewski, Lars Gronvall