Patents by Inventor DAVID NORMAN CHAPMAN

DAVID NORMAN CHAPMAN 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).

  • Splined muff
    Patent number: 10124906
    Abstract: A splined muff is provided for use with a ram air turbine (RAT). The splined muff includes a body formed of plastic material that acts as an insulator during a lightning strike. The body is formed to define an aperture and includes an interior facing spline for engagement with a complementary exterior facing spline; and an exterior facing spline for engagement with a complementary interior facing spline.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: November 13, 2018
    Assignee: HAMILTON SUNDSTAND CORPORATION
    Inventors: David Everett Russ, David Norman Chapman, Scott J. Marks
  • Ram air turbine stow lock pin
    Patent number: 9890662
    Abstract: What is defined is a stow lock pin for use in preventing deployment of a ram air turbine of an aircraft, the aircraft having a first distance from the ram air turbine to an access window. The stow lock pin includes a tip configured to be received by a slot of the ram air turbine. The stow lock pin also includes a rod coupled to the tip and having an axial distance that is larger than the first distance.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: February 13, 2018
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: David Norman Chapman, David Everett Russ
  • SPLINED MUFF
    Publication number: 20170101194
    Abstract: A splined muff is provided for use with a ram air turbine (RAT). The splined muff includes a body formed of plastic material that acts as an insulator during a lightning strike. The body is formed to define an aperture and includes an interior facing spline for engagement with a complementary exterior facing spline; and an exterior facing spline for engagement with a complementary interior facing spline.
    Type: Application
    Filed: October 7, 2015
    Publication date: April 13, 2017
    Inventors: David Everett Russ, David Norman Chapman, Scott J. Marks
  • RAM AIR TURBINE STOW LOCK PIN
    Publication number: 20160214741
    Abstract: What is defined is a stow lock pin for use in preventing deployment of a ram air turbine of an aircraft, the aircraft having a first distance from the ram air turbine to an access window. The stow lock pin includes a tip configured to be received by a slot of the ram air turbine. The stow lock pin also includes a rod coupled to the tip and having an axial distance that is larger than the first distance.
    Type: Application
    Filed: January 27, 2015
    Publication date: July 28, 2016
    Inventors: DAVID NORMAN CHAPMAN, David Everett Russ