Patents by Inventor Marcus A. Darais

Marcus A. Darais 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).

  • Methods of coupling a flywheel rim and a shaft
    Patent number: 10400855
    Abstract: A dome connector for a flywheel rim to shaft attachment is provided. The dome connector includes a helically wound composite band that extends from a first port to a second port. The helically wound composite band has a helical angle in relation to a line perpendicular to a center of axis of the dome connector. The helical angle is selected to at least in part achieve a desired stiffness in the dome connector.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: September 3, 2019
    Assignee: Northrop Grumman Innovation Systems, Inc.
    Inventors: Brian R. Christensen, Marcus A. Darais
  • METHODS OF COUPLING A FLYWHEEL RIM AND A SHAFT
    Publication number: 20160377148
    Abstract: A dome connector for a flywheel rim to shaft attachment is provided. The dome connector includes a helically wound composite band that extends from a first port to a second port. The helically wound composite band has a helical angle in relation to a line perpendicular to a center of axis of the dome connector. The helical angle is selected to at least in part achieve a desired stiffness in the dome connector.
    Type: Application
    Filed: September 9, 2016
    Publication date: December 29, 2016
    Inventors: Brian R. Christensen, Marcus A. Darais
  • Composite dome connectors for flywheel rim to shaft attachment
    Patent number: 9464685
    Abstract: A dome connector for a flywheel rim to shaft attachment is provided. The dome connector includes a helically wound composite band that extends from a first port to a second port. The helically wound composite band has a helical angle in relation to a line perpendicular to a center of axis of the dome connector. The helical angle is selected to at least in part achieve a desired stiffness in the dome connector.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: October 11, 2016
    Assignee: ORBITAL ATK, INC.
    Inventors: Brian R. Christensen, Marcus A. Darais
  • COMPOSITE DOME CONNECTORS FOR FLYWHEEL RIM TO SHAFT ATTACHMENT
    Publication number: 20140216204
    Abstract: A dome connector for a flywheel rim to shaft attachment is provided. The dome connector includes a helically wound composite band that extends from a first port to a second port. The helically wound composite band has a helical angle in relation to a line perpendicular to a center of axis of the dome connector. The helical angle is selected to at least in part achieve a desired stiffness in the dome connector.
    Type: Application
    Filed: February 7, 2013
    Publication date: August 7, 2014
    Applicant: ALLIANT TECHSYSTEMS INC.
    Inventors: Brian R. Christensen, Marcus A. Darais
  • Apparatus and method for reinforcing a pressure vessel
    Patent number: 7316327
    Abstract: Pressure vessel end dome reinforcements are placed upon resin-impregnated fiber-wound pressure vessels to improve the strength-to-weight ratio of high performance pressure vessels, such as those that are used as rocket motors, gas generators, and the like. The reinforcement structures are assembled from gore pieces to form gore bodies over dome regions of the pressure vessels.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: January 8, 2008
    Assignee: Alliant Techsystems Inc.
    Inventors: Roger D. Wright, Marcus A. Darais, James A. Yorgason, Alan J. Loveless, Darrel G. Turner, David R. Nelson
  • Apparatus and method for reinforcing a pressure vessel
    Publication number: 20040118857
    Abstract: Pressure vessel end dome reinforcements are placed upon resin-impregnated fiber-wound pressure vessels to improve the strength-to-weight ratio of high performance pressure vessels, such as those that are used as rocket motors, gas generators, and the like. The reinforcement structures are assembled from gore pieces to form gore bodies over dome regions of the pressure vessels.
    Type: Application
    Filed: December 8, 2003
    Publication date: June 24, 2004
    Inventors: Roger D. Wright, Marcus A. Darais, James A. Yorgason, Alan J. Loveless, Darrel G. Turner, David R. Nelson
  • Apparatus and method for reinforcing a pressure vessel
    Patent number: 6719165
    Abstract: Pressure vessel end dome reinforcements are placed upon resin-impregnated fiber-wound pressure vessels to improve the strength-to-weight ratio of high performance pressure vessels, such as those that are used as rocket motors, gas generators, and the like. The reinforcement structures are assembled from gore pieces to form gore bodies over dome regions of the pressure vessels.
    Type: Grant
    Filed: August 22, 2001
    Date of Patent: April 13, 2004
    Assignee: Alliant Techsystems Inc.
    Inventors: Roger D. Wright, Marcus A. Darais, James A. Yorgason, Alan J. Loveless, Darrel G. Turner, David R. Nelson
  • Apparatus and method for reinforcing a pressure vessel
    Publication number: 20030019874
    Abstract: Pressure vessel end dome reinforcements are placed upon resin impregnated fiber wound pressure vessels to improve the strength to weight ratio of high performance pressure vessels, such as those that are used as rocket motors, gas generators, and the like. The reinforcement structures are assembled from gore pieces to form gore bodies over dome regions of the pressure vessels.
    Type: Application
    Filed: August 22, 2001
    Publication date: January 30, 2003
    Inventors: Roger D. Wright, Marcus A. Darais, James A. Yorgason, Alan J. Loveless, Darrel G. Turner, David R. Nelson