Patents by Inventor Siang-Hong Boll

Siang-Hong Boll 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).

  • Apparatus for plasma treatment of the inside surface of a fuel tank
    Patent number: 5690745
    Abstract: A treatment chamber (1) evacuable by vacuum pumps (13,13') has a mounting (26,26', . . .) bearing the hollow body (4) in the treatment chamber (1), and a line (9,9') for the admission of a process gas into the treatment chamber (1). A microwave conductor (20,20' . . .) is connected with a generator (19,19' . . .) for igniting a plasma in the area of channels formed by a sheet-metal shroud (2,2') matching the configuration of the hollow body (4). A closure (7,7') is provided through which the filler opening (6, 6') of the hollow body (4) can be closed pressure-tight, and a line (9,9') for the process gas passes through the closure.
    Type: Grant
    Filed: October 17, 1995
    Date of Patent: November 25, 1997
    Assignee: Leybold AG
    Inventors: Heinrich Grunwald, Hermann Kloberdanz, Roland Lacher, Siang-Hong Boll