Patents by Inventor Michael KRATZERT

Michael KRATZERT 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).

  • Tool coupler with sliding coupling members for top drive
    Patent number: 11920411
    Abstract: A drive unit of a top drive system includes a drive stem having a plurality of ports from an exterior thereof to an interior thereof. A plurality of sliding coupling members is disposed in the ports. A coupling collar encircles the drive stem and has actuation surfaces and recessed surfaces on an interior thereof, wherein the recessed surfaces align with the ports when the coupling collar is in a first position, and the actuation surfaces align with the ports when the coupling collar is in a second position.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: March 5, 2024
    Assignee: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
    Inventors: Michael Henke, Michael Kratzert, Thomas Veit, Kevin Wood
  • TOOL COUPLER WITH SLIDING COUPLING MEMBERS FOR TOP DRIVE
    Publication number: 20220049557
    Abstract: A drive unit of a top drive system includes a drive stem having a plurality of ports from an exterior thereof to an interior thereof. A plurality of sliding coupling members is disposed in the ports. A coupling collar encircles the drive stem and has actuation surfaces and recessed surfaces on an interior thereof, wherein the recessed surfaces align with the ports when the coupling collar is in a first position, and the actuation surfaces align with the ports when the coupling collar is in a second position.
    Type: Application
    Filed: August 31, 2021
    Publication date: February 17, 2022
    Inventors: Michael HENKE, Michael KRATZERT, Thomas VEIT, Kevin WOOD