Patents by Inventor Sebastian Leier

Sebastian Leier 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).

  • Top drive for a drill string
    Patent number: 10221626
    Abstract: The top drive comprises a gear unit, a main spindle, and an active pressure generating device. The gear unit comprises a gear housing, an axial main bearing, and an axial auxiliary bearing. The axial main bearing comprises an upper main bearing part with rotates relative to the lower main bearing part. The lower main bearing part contacts the gear housing. The axial auxiliary bearing comprises an upper auxiliary bearing part which rotates relative to the lower auxiliary bearing part and contacts the gear housing. The main spindle rotates within the gear unit and contacts the upper main bearing part. The active pressure generating device is arranged between the upper auxiliary bearing part and the gear housing, the lower auxiliary bearing part and the main spindle, the lower main bearing part and the gear housing, and/or the upper main bearing part and the main spindle.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: March 5, 2019
    Assignee: MHWIRTH GMBH
    Inventors: Albrecht Heinrichs, Achim Feldermann, Sebastian Leier, Thomas Dolls
  • TOP DRIVE FOR A DRILL STRING
    Publication number: 20160290045
    Abstract: The top drive comprises a gear unit, a main spindle, and an active pressure generating device. The gear unit comprises a gear housing, an axial main bearing, and an axial auxiliary bearing. The axial main bearing comprises an upper main bearing part with rotates relative to the lower main bearing part. The lower main bearing part contacts the gear housing. The axial auxiliary bearing comprises an upper auxiliary bearing part which rotates relative to the lower auxiliary bearing part and contacts the gear housing. The main spindle rotates within the gear unit and contacts the upper main bearing part. The active pressure generating device is arranged between the upper auxiliary bearing part and the gear housing, the lower auxiliary bearing part and the main spindle, the lower main bearing part and the gear housing, and/or the upper main bearing part and the main spindle.
    Type: Application
    Filed: March 7, 2014
    Publication date: October 6, 2016
    Inventors: ALBRECHT HEINRICHS, ACHIM FELDERMANN, SEBASTIAN LEIER, THOMAS DOLLS
  • Rod assembly driver
    Patent number: 8240638
    Abstract: A rod assembly driver which is alternately acting in two opposing directions includes two opposing grip jaws for a rod assembly, which grip jaws are hingedly connected to one another in the form of a parallelogram by pairs of plates.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: August 14, 2012
    Assignee: Tracto-Technik GmbH & Co. KG
    Inventors: Franz-Josef Püttmann, Gerhard Völkel, Frank Prutti, Sebastian Leier
  • ROD ASSEMBLY DRIVER
    Publication number: 20090255701
    Abstract: A rod assembly driver which is alternately acting in two opposing directions includes two opposing grip jaws for a rod assembly, which grip jaws are hingedly connected to one another in the form of a parallelogram by pairs of plates.
    Type: Application
    Filed: March 25, 2009
    Publication date: October 15, 2009
    Applicant: Tracto-Technik GmbH & Co. KG
    Inventors: Franz-Josef Puttmann, Gerhard Volkel, Frank Prutti, Sebastian Leier