Patents by Inventor Benjamin Eisenberger

Benjamin Eisenberger 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).

  • Tachometer device having limiting means for limiting frequency variations
    Patent number: 4977372
    Abstract: A tachometer device having a sensor generating an electrical signal at a frequency which is proportional to a speed to be detected, an operating drive member, and electrical link means connecting the sensor to the operating drive member. A device for limiting frequency variations in the pulses applied to the operating drive member is interposed between the sensor and said operating drive member.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: December 11, 1990
    Assignee: Jaeger
    Inventors: Benjamin Eisenberger, Pierre Roussel