Patents by Inventor Lothar Wohlgemuth

Lothar Wohlgemuth 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).

  • Arc guiding, gripping and sealing device for a magnetically impelled butt welding rig
    Patent number: 9308600
    Abstract: A magnetically impelled arc butt (MIAB) welding device positioned on the rig floor heats facing ends of a pair of wellbore tubulars. After the facing ends are heated and/or melted, a force application device compressively engages the facing ends to form a welded joint.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: April 12, 2016
    Assignee: BAKER HUGHES INCORPORATED
    Inventors: Thomas Hassel, Aret Varahram, Florian Baer, Sven Mitulla, Joerg Lehr, Ludger Leo Josef Overmeyer, Hans Lothar Wohlgemuth, Friedrich-Wilhelm Bach, Dominik Brouwer
  • ARC GUIDING, GRIPPING AND SEALING DEVICE FOR A MAGNETICALLY IMPELLED BUTT WELDING RIG
    Publication number: 20130092665
    Abstract: A magnetically impelled arc butt (MIAB) welding device positioned on the rig floor heats facing ends of a pair of wellbore tubulars. After the facing ends are heated and/or melted, a force application device compressively engages the facing ends to form a welded joint.
    Type: Application
    Filed: October 14, 2011
    Publication date: April 18, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Thomas Hassel, Aret Varahram, Florian Baer, Sven Mitulla, Joerg Lehr, Ludger Leo Josef Overmeyer, Han Lothar Wohlgemuth, Friedrich-Wilhelm Bach
  • Method of and apparatus for supplying blanks to packing machines
    Patent number: 5630309
    Abstract: A packing machine receives stacks of blanks, which are to be converted into packets for cigarettes, from an apparatus wherein a first conveyor delivers stacks of blanks to a first station at a first frequency and a second conveyor advances stacks from a second station to the machine at a second frequency which can be less than the first frequency. The stations are connected to each other by two transporting units each of which can act as a first-in first-out reservoir for stacks or as a conveying unit which can move successive stacks without interruptions all the way from the first to the second station. The conveying unit is operative alone as long as the second frequency matches the first frequency, and the reservoir begins to accept surplus stacks when the first frequency exceeds the second frequency. Once filled, the reservoir begins to deliver stacks to the second station and continues to receive stacks from the first station until the reservoir is empty.
    Type: Grant
    Filed: May 19, 1995
    Date of Patent: May 20, 1997
    Assignee: Hauni Maschinenbau AG
    Inventors: Otto Blidung, Lothar Wohlgemuth, Jens Deichmoller