Patents by Inventor Andrew C. Marshall

Andrew C. Marshall 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).

  • Composite structure
    Patent number: 5981025
    Abstract: A composite web structure utilizing a thin first layer of material having a plurality of structural fibers arranged to lie essentially in a unidirectional orientation. A thin second layer of material is positioned adjacent the first layer and includes a plurality of structural fibers. First and second layers are impregnated with a matrix material for binding fibers within the first and second layers and for binding the first and second layers together. The web may be formed into a composite structure such as a honeycomb core for fabrication into a panel.
    Type: Grant
    Filed: March 5, 1998
    Date of Patent: November 9, 1999
    Assignee: Specialty Cellular Products Company
    Inventors: Andrew C. Marshall, Michael L. Fellman
  • Heat conduction honeycomb core
    Patent number: 5789060
    Abstract: A composite web structure utilizing a thin first layer of material having a plurality of structural fibers arranged to lie essentially in a unidirectional orientation. A thin second layer of material is positioned adjacent the first layer and includes a plurality of structural fibers. First and second layers are impregnated with a matrix material for binding fibers within the first and second layers and for binding the first and second layers together. The web may be formed into a composite structure such as a honeycomb core for fabrication into a panel.
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: August 4, 1998
    Assignee: Specialty Cellular Products Company
    Inventors: Andrew C. Marshall, Michael L. Fellman
  • Composite structure
    Patent number: 5730920
    Abstract: A composite web structure utilizing a thin first layer of material having a plurality of structural fibers arranged to lie essentially in a unidirectional orientation. A thin second layer of material is positioned adjacent the first layer and includes a plurality of structural fibers. First and second layers are impregnated with a matrix material for binding fibers within the first and second layers and for binding the first and second layers together. The web may be formed into a composite structure such as a honeycomb core for fabrication into a panel.
    Type: Grant
    Filed: July 29, 1996
    Date of Patent: March 24, 1998
    Assignee: Specialty Cellular Products Company
    Inventors: Andrew C. Marshall, Michael L. Fellman
  • Composite honeycomb core structure comprising cell walls constructed of at least three unidirectional fiber layers or at least two unidirectional fiber layers and a random fiber layer
    Patent number: 5567500
    Abstract: A composite web structure utilizing a thin first layer of material having a plurality of structural fibers arranged to lie essentially in a unidirectional orientation. A thin second layer of material is positioned adjacent the first layer and includes a plurality of structural fibers. First and second layers are impregnated with a matrix material for binding fibers within the first and second layers and for binding the first and second layers together. The web may be formed into a composite structure such as a honeycomb core for fabrication into a panel.
    Type: Grant
    Filed: October 13, 1995
    Date of Patent: October 22, 1996
    Assignee: Speciality Cellular Products Company
    Inventors: Andrew C. Marshall, Michael L. Fellman
  • Aeroelastically responsive composite propeller
    Patent number: 4627791
    Abstract: A propeller blade made of an advanced composite of uniaxial fibers laminated in crossplies to take advantage of their high axial strength. The thinness and strength of the plies are exploited in assembling the plies at various orientations to produce propeller blades which respond to changing aerodynamic loads in the complex ways necessary to maintain an optimum shape.
    Type: Grant
    Filed: November 10, 1982
    Date of Patent: December 9, 1986
    Inventor: Andrew C. Marshall