Patents by Inventor Klaus-Peter Uhlmann

Klaus-Peter Uhlmann 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).

  • Processing of copper tubing
    Patent number: 4393566
    Abstract: Several lengths of tubing are interconnected either in advance by welding or brazing, or on-line by hollow plugs, and fed through an annealing furnace, a jacketing station, and a cutter, whereby flushing gas such as air, oxygen-enriched air, or an inert gas are sucked through the respective trailing end. The on-line, end-to-end connection can also be additionally used for tubings as prepared in advance and permits continuous processing, particularly combining process annealing with removal of oil residues.
    Type: Grant
    Filed: December 30, 1980
    Date of Patent: July 19, 1983
    Assignee: Kabel-und Metallwerke Gutehoffnungshutte AG
    Inventors: Otto Uhlmann, Klaus-Peter Uhlmann
  • Mandrel exchange in piercing mills
    Patent number: 4368630
    Abstract: Two water tanks, one behind the other, are disposed adjacent to the rolling gap for a piercing mill; the rolled seamless tube on a mandrel rod passes through both tanks during rolling. The tank closest to the gap contains also a mandrel holder, and following rolling the mandrel is retracted into that tank; this tank, but not the other one, is emptied and the mandrel on the rod is exchanged. The tank is refilled and the next billet can be rolled. Nozzles are provided to prevent water from escaping through openings in tank walls for the tube.
    Type: Grant
    Filed: March 10, 1980
    Date of Patent: January 18, 1983
    Assignee: Kabel- und Metallwerke Gutehoffnungshutte AG
    Inventors: Otto Uhlmann, Klaus-Peter Uhlmann