Patents by Inventor Michael Broeckmann

Michael Broeckmann 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).

  • Proportional valve spool with linear flow gain
    Patent number: 11680649
    Abstract: An example spool includes a shaft varying in diameter along a length of the shaft, and a plurality of annular lands formed on the shaft and spaced-apart by respective reduced diameter annular neck portions. The plurality of annular lands comprise at least one annular metering land, and wherein the at least one annular metering land comprises: one or more sine notches formed as a portion of a sine wave, and one or more additional notches having a different shape from the one or more sine notches.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: June 20, 2023
    Assignee: Parker-Hannifin Corporstion
    Inventors: Mitchell P. Eichler, Michael Broeckmann, Bipin G. Kashid
  • Proportional Valve Spool with Linear Flow Gain
    Publication number: 20220154834
    Abstract: An example spool includes a shaft varying in diameter along a length of the shaft, and a plurality of annular lands formed on the shaft and spaced-apart by respective reduced diameter annular neck portions. The plurality of annular lands comprise at least one annular metering land, and wherein the at least one annular metering land comprises: one or more sine notches formed as a portion of a sine wave, and one or more additional notches having a different shape from the one or more sine notches.
    Type: Application
    Filed: August 26, 2021
    Publication date: May 19, 2022
    Inventors: Mitchell P. Eichler, Michael Broeckmann, Bipin G. Kashid