Patents by Inventor Hai Sui

Hai Sui 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).

  • Primary seals for master-slave cylinder systems
    Patent number: 6712362
    Abstract: In a master/slave cylinder system for clutches or brakes, primary seals have bevels which interact with similar bevels of formations on housings of the respective cylinders. Along with the lowest possible friction in the region of the sealing lips, this permits carrying out uncomplicated pressure/negative-pressure filling in the case of the master cylinder. The primary seals slide by the wedge of effects in the direction of the pressure on the bevels of the annular formations and reduce the annular bearing face of the sealing lip in a frictionally optimized manner.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: March 30, 2004
    Assignee: Mannesmann Sachs AG
    Inventors: Klaus Krappmann, André Gemeinhardt, Hai Sui, Dieter Gebauer, Boleslaw Tulaczko, Volker Stampf
  • Primary seals for master-slave cylinder systems
    Publication number: 20020050686
    Abstract: In a master/slave cylinder system for clutches or brakes, primary seals have bevels which interact with similar bevels of formations on housings of the respective cylinders. Along with the lowest possible friction in the region of the sealing lips, this permits carrying out uncomplicated pressure/negative-pressure filling in the case of the master cylinder. The primary seals slide by the wedge of effects in the direction of the pressure on the bevels of the annular formations and reduce the annular bearing face of the sealing lip in a frictionally optimized manner.
    Type: Application
    Filed: October 9, 2001
    Publication date: May 2, 2002
    Applicant: Mannesmann Sachs AG
    Inventors: Klaus Krappmann, Andre Gemeinhardt, Hai Sui, Dieter Gebauer, Boleslaw Tulaczko, Volker Stampf