Patents by Inventor John Jay Starbird

John Jay Starbird 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: 6300739
    Abstract: A novel low cost limited angle torque DC brushless servomotor is disclosed. The motor itself is a modified standard low cost DC brush motor which is modified by removing the brush assembly and substituting in its place an appropriately configured multiconductor flexible circuit which is coupled between a controller, the commutator and a magnetic rotor shaft angular displacement sensor. The flexible circuit has a dual function—it provides on one hand the conduit for electrical communication between the controller and the commutator and on the other hand between the sensor and the controller. Part of the circuit is supported between a bearing assembly and the commutator and flexes in consonance with the controlled limited angular rotation of the rotor without affecting performance or reliability of the motor. The rest of the circuit remains stationary during motor operation. The bearing assembly supports the sensor and is used to mount the motor in a housing for a pneumatic servovalve or the like.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: October 9, 2001
    Assignee: HR Textron Inc.
    Inventors: William Edward Ratliff, John Jay Starbird, Kim Lige Coakley