Patents by Inventor Robert N. Dunn

Robert N. Dunn 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).

  • Tandem Wing Aircraft With Variable Lift And Enhanced Safety
    Publication number: 20200262557
    Abstract: A tandem wing aircraft having a fore wing, an aft wing, and a middle wing, attached relative to the aircraft and each other such that the middle wing provides a substantial portion of the total lift at landing speeds, and a minimal portion of the total lift at cruise speeds. At cruise speeds, induced drag is minimized, permitting higher speeds, greater fuel efficiency, and/or greater payload. Advantageously, the wing loading at cruise speeds is higher providing better passenger comfort while still providing controllability and safety at landing speeds.
    Type: Application
    Filed: January 17, 2020
    Publication date: August 20, 2020
    Inventors: Robert N. Dunn, Lawrence R. Dunn
  • Tandem wing aircraft with variable lift and enhanced safety
    Patent number: 10562626
    Abstract: A tandem wing aircraft having a fore wing, an aft wing, and a middle wing, attached relative to the aircraft and each other such that the middle wing provides a substantial portion of the total lift at landing speeds, and a minimal portion of the total lift at cruise speeds. At cruise speeds, induced drag is minimized, permitting higher speeds, greater fuel efficiency, and/or greater payload. Advantageously, the wing loading at cruise speeds is higher providing better passenger comfort while still providing controllability and safety at landing speeds.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: February 18, 2020
    Inventors: Robert N. Dunn, Lawrence R. Dunn
  • Tandem Wing Aircraft With Variable Lift And Enhanced Safety
    Publication number: 20180222584
    Abstract: A tandem wing aircraft having a fore wing, an aft wing, and a middle wing, attached relative to the aircraft and each other such that the middle wing provides a substantial portion of the total lift at landing speeds, and a minimal portion of the total lift at cruise speeds. At cruise speeds, induced drag is minimized, permitting higher speeds, greater fuel efficiency, and/or greater payload. Advantageously, the wing loading at cruise speeds is higher providing better passenger comfort while still providing controllability and safety at landing speeds.
    Type: Application
    Filed: March 22, 2018
    Publication date: August 9, 2018
    Inventors: Robert N. Dunn, Lawrence R. Dunn
  • Surgical gloves and surface treatment of surgical gloves for avoiding starch peritonitis and the like
    Patent number: 4540407
    Abstract: An improved surgical glove, powdered to serve as a lubricant, is provided by using a polyol powder as the lubricant. The use of a polyol powder as the powdering agent for use on surgical gloves avoids the problem of starch peritonitis that has been reported upon in medical literature.In one preferred application, polyol powder is dusted onto the side of the glove that will be the glove exterior, or patient-contact surface of the glove when used. Alternatively, polyol powder is dusted onto both surfaces of the glove.
    Type: Grant
    Filed: November 14, 1983
    Date of Patent: September 10, 1985
    Inventor: Robert N. Dunn