Patents by Inventor Daehun Gwon

Daehun Gwon 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).

  • Piston-cylinder unit with a protective sleeve
    Patent number: 7392736
    Abstract: A piston-cylinder unit includes a piston rod guided axially in a cylinder, a support disk fixed to the piston rod, a mounting element fixed to the support disk, and a protective sleeve which can be threaded over the mounting element. The protective sleeve has an end wall with an aperture profiled to receive the mounting element therethrough as the protective sleeve is fitted to the support disk, the protective sleeve being rotatable relative to the mounting element when fitted to the support disk, the mounting element having an axial support surface which can be positioned axially above the end wall to retain the protective sleeve.
    Type: Grant
    Filed: February 22, 2006
    Date of Patent: July 1, 2008
    Assignee: ZF Friedrichshafen AG
    Inventors: Gerald Fenn, Daehun Gwon, Jonghyuk Lee, Taewon Kim
  • Piston-cylinder unit with a protective sleeve
    Publication number: 20060213366
    Abstract: A piston-cylinder unit includes a piston rod guided axially in a cylinder, a support disk fixed to the piston rod, a mounting element fixed to the support disk, and a protective sleeve which can be threaded over the mounting element. The protective sleeve has an end wall with an aperture profiled to receive the mounting element therethrough as the protective sleeve is fitted to the support disk, the protective sleeve being rotatable relative to the mounting element when fitted to the support disk, the mounting element having an axial support surface which can be positioned axially above the end wall to retain the protective sleeve.
    Type: Application
    Filed: February 22, 2006
    Publication date: September 28, 2006
    Applicant: ZF Friedrichshafen AG
    Inventors: Gerald Fenn, Daehun Gwon, Jonghyuk Lee, Taewon Kim