Patents by Inventor Andre M. E. Richard

Andre M. E. Richard 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).

  • Device for selecting characteristics of a transmission between a motor and its load
    Patent number: 4233862
    Abstract: This device comprises a generator of electric signals adapted to generate a first signal whose frequency is proportional to the speed of the output shaft of the transmission and whose amplitude is a function of the load of the motor with which this transmission is associated, and means for producing from said signal the ratio change characteristics.The device further comprises means for producing from the generator signal an additional electric signal whose amplitude is a function of the frequency of the first signal, means for weighting and comparing said first signal and said additional signal so as to obtain a signal representing periodically the desired state of the transmission, and means for memorizing the desired state of the transmission connected to the measuring and comparing means to change the transmission from one ratio to the next ratio as a function of the signal produced by the weighting and comparing means.
    Type: Grant
    Filed: June 17, 1977
    Date of Patent: November 18, 1980
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventor: Andre M. E. Richard