Patents by Inventor Roland Bühlmann

Roland Bühlmann 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).

  • Device for actuating a sliding closure applied to a vessel containing a molten metal
    Patent number: 7530479
    Abstract: The invention relates to a device for actuating a sliding closure (3) applied to a vessel (1) containing a molten metal, once the vessel (1) has been positioned on a ladle rotating tower. A piston/cylinder unit (10) that can be introduced into a holding element (4) of the sliding closure (3) comprises a drive shaft (11) that can be coupled to a slide rod of the sliding closure. Said piston/cylinder unit (10) can be introduced into the holding element (4) and withdrawn from the same by means of a controllable manipulator (20) arranged on the ladle rotating tower. In this way, the piston/cylinder unit can be applied to the sliding closure effortlessly and precisely in few steps.
    Type: Grant
    Filed: November 20, 2004
    Date of Patent: May 12, 2009
    Assignee: Stopinc Aktiengesellschaft
    Inventors: Roland Bühlmann, Rene Christen, Philipp Achermann