Patents by Inventor Leanne L. Lehman

Leanne L. Lehman 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).

  • Publication number: 20110088856
    Abstract: A blanket assembly includes a shear fabric and an attachment frame wrapped in the shear fabric. A thermal protection blanket is carried by the shear fabric.
    Type: Application
    Filed: October 16, 2009
    Publication date: April 21, 2011
    Inventors: Winnie W. Chen, Edward A. Zadorozny, Conley S. Thatcher, Jonathan D. Embler, Leanne L. Lehman, Thomas Pinney
  • Publication number: 20110073255
    Abstract: A ceramic matrix composite structure has a reinforced core for carrying loads. The core includes a web connected between the facesheets by edge bonded joints for transmitting compressive, tensile and shear loads. The edge bonded joints are laterally reinforced by bridging members bonded to the facesheets, on opposite sides of the webs. The bridging members may comprise low density, high temperature rigid foam.
    Type: Application
    Filed: December 6, 2010
    Publication date: March 31, 2011
    Applicant: The Boeing Company
    Inventors: Michael L. Hand, Leanne L. Lehman, Miklos P. Petervary
  • Publication number: 20100178457
    Abstract: An apparatus comprises a thermal protection element, a number of washers, a ceramic layer, a number of blind fasteners, and a number of tabs. The thermal protection element has an upper surface, a lower surface, and a plurality of sides. The ceramic layer covers at least the plurality of sides of the thermal protection element. The number of tabs is connected to the number of sides by the number of blind fasteners secured to the ceramic layers. The tabs may be part of a frame secured to a groove around the plurality of sides.
    Type: Application
    Filed: January 12, 2009
    Publication date: July 15, 2010
    Inventors: Thomas R. Pinney, Conley Siddoway Thatcher, Jonathan Embler, Kaia Elena David, Leanne L. Lehman, Edward A. Zadorozny
  • Publication number: 20090263627
    Abstract: A composite structure and an associated exhaust washed structure are provided which may be formed of ceramic matrix composite (CMC) materials. A method of fabricating a composite structure which may include the CMC material is also provided. A composite structure may include a corrugated septum extending in a lengthwise direction. The composite structure may also include a flute within which the corrugated septum is disposed to form, for example, a partitioned flute assembly.
    Type: Application
    Filed: April 21, 2008
    Publication date: October 22, 2009
    Applicant: The Boeing Company
    Inventors: Michael L. Hand, Buddhadev Chakrabarti, Leanne L. Lehman, Gopal P. Mathur
  • Publication number: 20090005232
    Abstract: A ceramic matrix composite structure has a reinforced core for carrying loads. The core includes a web connected between the facesheets by edge bonded joints for transmitting compressive, tensile and shear loads. The edge bonded joints are laterally reinforced by bridging members bonded to the facesheets, on opposite sides of the webs The bridging members may comprise low density, high temperature rigid foam.
    Type: Application
    Filed: June 28, 2007
    Publication date: January 1, 2009
    Inventors: Michael L. Hand, Leanne L. Lehman, Miklos P. Petervary
  • Publication number: 20090004425
    Abstract: A ceramic matrix composite structure includes a load carrying fluted core formed from a ceramic matrix composite. The fluted core includes a plurality of nested flute members laminated between a pair of ceramic matrix composite facesheets. The flute members are fabricated by wrapping ceramic resin fabric around a mandrel, curing the flute members and then removing the mandrels. The structure may include reinforced areas in which the facesheets are laminated directly together to receive fasteners for mounting the structure. The structure may include both flat and curved portions.
    Type: Application
    Filed: June 28, 2007
    Publication date: January 1, 2009
    Inventors: Leanne L. Lehman, John R. McCann
  • Patent number: 6866733
    Abstract: A flexible insulation blanket having a ceramic matrix composite (CMC) outer layer, and a method of producing a flexible insulation blanket having a smooth, aerodynamically suitable, outer surface by infiltrating ceramic material within the outer ceramic fabric layer of the flexible insulation blanket and curing the ceramic material to form a CMC layer. The CMC layer is cured while the blanket is under compression such that the resulting CMC layer has a smooth surface.
    Type: Grant
    Filed: July 1, 2003
    Date of Patent: March 15, 2005
    Assignee: The Boeing Company
    Inventors: Jerry Denham, Robert A. Dichiara, Jr., Vann Heng, Leanne L. Lehman, David Zorger
  • Patent number: 6844091
    Abstract: A flexible insulation blanket having a ceramic matrix composite (CMC) outer layer, and a method of producing a flexible insulation blanket having a smooth, aerodynamically suitable, outer surface by infiltrating ceramic material within the outer ceramic fabric layer of the flexible insulation blanket and curing the ceramic material to form a CMC layer. The CMC layer is cured while the blanket is under compression such that the resulting CMC layer has a smooth surface.
    Type: Grant
    Filed: November 11, 2002
    Date of Patent: January 18, 2005
    Assignee: The Boeing Company
    Inventors: Jerry Denham, Robert A. Dichiara, Jr., Vann Heng, Leanne L. Lehman, David Zorger
  • Publication number: 20040091699
    Abstract: A flexible insulation blanket having a ceramic matrix composite (CMC) outer layer, and a method of producing a flexible insulation blanket having a smooth, aerodynamically suitable, outer surface by infiltrating ceramic material within the outer ceramic fabric layer of the flexible insulation blanket and curing the ceramic material to form a CMC layer. The CMC layer is cured while the blanket is under compression such that the resulting CMC layer has a smooth surface.
    Type: Application
    Filed: November 11, 2002
    Publication date: May 13, 2004
    Applicant: THE BOEING COMPANY
    Inventors: Jerry Denham, Robert A. Dichiara, Vann Heng, Leanne L. Lehman, David Zorger