Patents by Inventor Barry R. Rothstein

Barry R. Rothstein 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).

  • Patent number: 5729100
    Abstract: An anti-backlash gearing system which includes first and second drive gears hich mesh with a driven gear to provide torque and rotational motion to the driven gear. The drive gears are each driven by a motor, while the driven gear drives a load. The anti-backlash gearing system uses a microprocessor to control the command voltage R to each of the drive motors. The command voltage R provided to each drive motor also includes an offset .delta. which may be positive for one motor and negative for the other motor. The torque provided by one motor and its associated drive gear to the driven gear may be in the positive direction (clockwise direction), while the torque provided by the other motor and its associated drive gear to the driven gear is in the negative direction (counterclockwise direction). The motors are driven in opposite directions to control the backlash on the gears.
    Type: Grant
    Filed: February 3, 1997
    Date of Patent: March 17, 1998
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Barry R. Rothstein, Bradley E. Paden