Patents by Inventor Svatomira Walter, legal representative

Svatomira Walter, legal representative 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).

  • Patent number: 7784551
    Abstract: A device for handling well pipe includes a mandrel including an upper end, a lower end and a long axis extending between through the upper end and the lower end. The mandrel secures to a top drive of a drilling rig. A threaded collar is located on an outer surface of the mandrel to loosely engage threads of a well pipe. An annular force generating assembly is carried on the mandrel and positioned between the upper end and the threaded collar. The force generating assembly applies a load to an upper end of the well pipe along the long axis, enabling torque to be transmitted between the threaded collar and the well pipe. The force generating assembly may be cams or a hydraulic piston.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: August 31, 2010
    Assignee: Tesco Corporation
    Inventors: Per G. Angman, Bruno H. Walter, Svatomira Walter, legal representative, Bronislav Walter