Patents by Inventor Reginald A. Doe

Reginald A. Doe 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).

  • Helicopter airspeed indicating system
    Patent number: 4300200
    Abstract: This invention provides a helicopter airspeed indicating system for providing an indication of a theoretical airspeed of a helicopter in which it is fitted. The airspeed is calculated using measured weight and power values and a known relationship between power, weight and airspeed characteristics of the helicopter, and is particularly useful for providing an indication of helicopter airspeed at the low end of an overall speed range.
    Type: Grant
    Filed: November 23, 1979
    Date of Patent: November 10, 1981
    Assignee: Westland Aircraft Limited
    Inventor: Reginald A. Doe