Patents by Inventor Jean Lieber

Jean Lieber 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).

  • Method for adjusting the output of a pump provided with an adjustable spray cone with movable blades
    Patent number: 4056330
    Abstract: In a hydraulic pump and turbine system, the angular setting of the spray cone blades of the pump can be adjusted without any detrimental vibratory action during actual operation of the pump, this being obtained by closing, during said adjustment and without stopping the movement of the pump rotor, a valve, preferably a sleeve valve, inserted in the pump delivery channel between the pump rotor and the spray cone.
    Type: Grant
    Filed: September 29, 1975
    Date of Patent: November 1, 1977
    Assignee: Ateliers des Charmilles S.A.
    Inventor: Jean Lieber
  • Hydraulic plant
    Patent number: 4025228
    Abstract: In a hydraulic plant comprising one or more machines of the reaction turbine or rotary pump type, the conventional single spiral casing of each machine is replaced by several partial volutes connecting the periphery of the fixed supporting blade ring by several independent tubular connection elements to a pressure pipeline.
    Type: Grant
    Filed: June 24, 1975
    Date of Patent: May 24, 1977
    Assignee: Ateliers des Charmilles S.A.
    Inventor: Jean Lieber