Patents by Inventor Christian Petschke

Christian Petschke 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: 6742306
    Abstract: The invention relates to a method for carrying out work on an object of shipbuilding or building construction or industrial installations by means of hanging stages or cradles, which are connected to the object by means of a plurality of U-shaped fixtures. For a long time this method has suffered from the disadvantage that subsequent welding, flexing, breaking away and similar work led to damage to adjacent surfaces. It was also necessary to dispose of the separated U-fixtures or irons. This problem is obviated by the invention in that waterproof, stainless base plates (10) are fixed in spaced manner to the object so as to remain permanently thereon and the fixtures (16) are fixed to the base plate (10) by means of a redetachable screw or plug-in connection (14) and following the detachment and removal of the reusable fixtures (16) from the base plate (10), the screw or plug-in connection (14) is closed.
    Type: Grant
    Filed: November 16, 2001
    Date of Patent: June 1, 2004
    Assignee: Muhlhan Surface Protection International GmbH
    Inventors: Christian Petschke, Wulf-Dieter Greverath, Gerd Herrmann
  • Publication number: 20020066398
    Abstract: The invention relates to a method for carrying out work on an object of shipbuilding or building construction or industrial installations by means of hanging stages or cradles, which are connected to the object by means of a plurality of U-shaped fixtures. For a long time this method has suffered from the disadvantage that subsequent welding, flexing, breaking away and similar work led to damage to adjacent surfaces. It was also necessary to dispose of the separated U-fixtures or irons. This problem is obviated by the invention in that waterproof, stainless base plates (10) are fixed in spaced manner to the object so as to remain permanently thereon and the fixtures (16) are fixed to the base plate (10) by means of a redetachable screw or plug-in connection (14) and following the detachment and removal of the reusable fixtures (16) from the base plate (10), the screw or plug-in connection (14) is closed.
    Type: Application
    Filed: November 16, 2001
    Publication date: June 6, 2002
    Inventors: Christian Petschke, Wulf-Dieter Greverath, Gerd Herrmann