Patents by Inventor Reinhard Grosch

Reinhard Grosch 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).

  • Tubular handling apparatus
    Patent number: 8752636
    Abstract: A tubular gripping assembly for use with a top drive to handle a tubular includes a tubular gripping tool having a mandrel and gripping elements operatively coupled to the mandrel; and a link assembly attached to the mandrel, wherein a load of the link assembly is transferred to the mandrel. The tubular gripping assembly may also include one or more of a swivel having selectively actuatable seals, a thread compensator to facilitate tubular make-up, or a wedge lock release apparatus to facilitate the release of gripping elements from the tubular.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: June 17, 2014
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Martin Liess, John D. Hooker, II, Reinhard Grosch, Thomas Kotschy, Andreas Carlsson
  • Tubular handling apparatus
    Patent number: 8365834
    Abstract: In one embodiment, a tubular gripping assembly for use with a top drive to handle a tubular includes a tubular gripping tool having a mandrel and gripping elements operatively coupled to the mandrel; and a link assembly attached to the mandrel, wherein a load of the link assembly is transferred to the mandrel. In another embodiment, the tubular gripping assembly includes a swivel having selectively actuatable seals. In yet another embodiment, the tubular gripping assembly includes a thread compensator to facilitate tubular make-up. In yet another embodiment, the tubular gripping assembly includes a wedge lock release apparatus to facilitate the release of gripping elements from the tubular.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: February 5, 2013
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Martin Liess, John D. Hooker, II, Reinhard Grosch, Thomas Kotschy, Andreas Carlsson
  • Tubular Handling Apparatus
    Publication number: 20090274545
    Abstract: In one embodiment, a tubular gripping assembly for use with a top drive to handle a tubular includes a tubular gripping tool having a mandrel and gripping elements operatively coupled to the mandrel; and a link assembly attached to the mandrel, wherein a load of the link assembly is transferred to the mandrel. In another embodiment, the tubular gripping assembly includes a swivel having selectively actuatable seals. In yet another embodiment, the tubular gripping assembly includes a thread compensator to facilitate tubular make-up. In yet another embodiment, the tubular gripping assembly includes a wedge lock release apparatus to facilitate the release of gripping elements from the tubular.
    Type: Application
    Filed: May 4, 2009
    Publication date: November 5, 2009
    Inventors: Martin Liess, John D. Hooker, II, Reinhard Grosch, Thomas Kotschy, Andreas Carlsson