Patents by Inventor Peter Gray Brownell

Peter Gray Brownell 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: 3944799
    Abstract: A computer, for use with a machine tool, can make any of a number of calculations involving ratios between two operands to determine the angular velocity of the spindle of the machine, the velocity and position of a movable member such as a carriage, and the ratio between two velocities. Any of such calculations is selected by means of a selector switch and a second selector switch is settable to select a time base for the calculation. The operands are represented by pulses produced by transducers associated with movable members of the machine tool.
    Type: Grant
    Filed: January 28, 1974
    Date of Patent: March 16, 1976
    Inventor: Peter Gray Brownell