Patents by Inventor Hansruedi Ammann

Hansruedi Ammann 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).

  • Exhaust-gas turbocharger with a bearing system located between the turbine and the compressor
    Patent number: 4538969
    Abstract: An exhaust-gas turbocharger has a bearing system which is positioned between a compressor impeller and a turbine wheel which are positioned on respective ends of a rotor shaft. The compressor impeller is attached to the rotor-shaft via an intermediate bush. A conically mating fit, at one end of the intermediate bush directly adjacent to the bearing, serves to attach this intermediate bush to a shaft-stub of the rotor shaft. A frictionally-locked press fit serves, at the other end of the intermediate bush, to attach the compressor impeller to the intermediate bush, in a manner which transmits torque.
    Type: Grant
    Filed: November 13, 1984
    Date of Patent: September 3, 1985
    Assignee: BBC Brown, Boveri & Company, Limited
    Inventors: Hansruedi Ammann, Hansulrich Horler
  • Snowboard boot
    Patent number: D917844
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: May 4, 2021
    Inventor: Hansruedi Ammann