Patents by Inventor Hansjoerg Jakobi

Hansjoerg Jakobi 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).

  • Electrically heatable glow plug with oxygen getter material
    Patent number: 6121577
    Abstract: An electrically heatable glow plug for an internal combustion engine includes a corrosion-resistant metal jacket, a compressed powder filling contained therein, and an electrically conducting coil embedded in the filling. To increase the lifetime of the heating coil, a getter material for binding the oxygen contained in the compressed powder filling is provided. The getter material can be distributed in the form of electrically nonconducting particles in the compressed powder filling. The getter material can also be applied as a coating to the coil or to the inner surface of the metal jacket.
    Type: Grant
    Filed: February 16, 2000
    Date of Patent: September 19, 2000
    Assignees: DaimlerChrysler AG, BERU AG
    Inventors: Hansjoerg Jakobi, Roland Klak, Karl-Heinz Thiemann, Hans Delesky
  • Electrically heatable glow plug with oxygen getter material
    Patent number: 6043459
    Abstract: An electrically heatable glow plug for an internal combustion engine includes a corrosion-resistant metal jacket, a compressed powder filling contained therein, and an electrically conducting coil embedded in the filling. To increase the lifetime of the heating coil, a getter material for binding the oxygen contained in the compressed powder filling is provided. The getter material can be distributed in the form of electrically nonconducting particles in the compressed powder filling. The getter material can also be applied as a coating to the coil or to the inner surface of the metal jacket.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: March 28, 2000
    Assignee: DaimlerChrysler AG and Beru AG
    Inventors: Hansjoerg Jakobi, Roland Klak, Karl-Heinz Thiemann, Hans Delesky