Patents by Inventor Ernst Weingartner

Ernst Weingartner 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).

  • Vacuum arc melting and casting furnace with a vacuum chamber and a tilting crucible
    Patent number: 4450570
    Abstract: The invention concerns a vacuum arc melting and casting furnace comprising a vacuum chamber, a tilting crucible and a current connection leading to the bottom of the tilting crucible. This current connection consists of a fixed contact and of a co-operating contact arranged on the bottom of the crucible and movable with the tilting crucible. Also provided is an electrode rod for holding an electrode concentrically in relation to the tilting crucible.The fixed contact is secured on at least two current conductors which are substantially coaxial with the electrode rod or electrode. These conductors pass through the vacuum chamber from the top and extend past the tilting crucible, and their distance apart is such that the crucible can be tilted between them into the casting position.
    Type: Grant
    Filed: October 18, 1982
    Date of Patent: May 22, 1984
    Assignee: Leybold-Heraeus GmbH
    Inventors: Ernst Weingartner, Klaus Samietz