Patents by Inventor Willi Johnen

Willi Johnen 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: 6862818
    Abstract: An oil removing device for cleaning pipes that are present in the form of coils in a furnace that accommodates and heats the pipes, with or without associated cooling zone, has a gas guiding device for feeding a scavenging gas to or removing it from the pipes. The gas guiding device is provided with connections for detachably and sealingly linking with a gas feed line and a gas discharge line. Ends of every pipe are separately connected to one and the same connecting head that has a gas inlet and a gas outlet opening the axially aligned therewith. The end of the gas feed line and the end of the gas discharge line are opposite each other and can be displaced along with the gas inlet opening and/or the gas outlet opening while sealingly connected.
    Type: Grant
    Filed: September 6, 2002
    Date of Patent: March 8, 2005
    Assignee: Otto Junker GmbH
    Inventors: Willi Johnen, Glynn Jones
  • Publication number: 20040020071
    Abstract: The invention relates to an oil removing device for cleaning pipes that are present in the form of coils (13). Same device comprises a furnace that accommodates and heats the pipes, with or without associated cooling zone, and a gas guiding device (15, 16′) for feeding a scavenging gas to or removing it from the pipes. Said gas guiding device is provided with means for detachably and sealingly establish a link with a gas feed line and a gas discharge line. The aim of the invention is to configure the link with the pipes in as easy and reliable a manner as possible. For this purpose, the device is configured in such a manner that both ends of every pipe are separately connected to one and the same connecting head (4) that has a gas inlet (5) and a gas outlet opening the axially aligned therewith. The end (7) of the gas feed line and the end (8) of the gas discharge line are opposite each other and can be displaced along with the gas inlet opening and/or the gas outlet opening while sealingly connected.
    Type: Application
    Filed: May 14, 2003
    Publication date: February 5, 2004
    Inventors: Willi Johnen, Glynn Jones