Patents by Inventor Sandra J. Stash

Sandra J. Stash 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).

  • Process for constructing lightning strike protection for adhesively bonded graphite composite joints
    Patent number: 11575220
    Abstract: A bonded joint for use in bonding composite materials is provided and includes a composite rib having electrically conductive properties and a composite structure having electrically conductive properties. An electrically conductive preform is provided that facilitates a bond between the composite rib and the composite structure. A mesh composition that bonds the composite rib to the preform and that bonds the preform to the composite structure is provided and is electrically conductive to conduct current between the composite rib and the composite structure.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: February 7, 2023
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Bruce R. Crain, Eric S. Cramer, Michael C. Hofmeister, Kevin M. Gallenstein, Jessica N. Pearce, Sandra J. Stash, Daniel E. Suh
  • Apparatus and method for forming a composite structure
    Patent number: 7014883
    Abstract: A method for forming a composite structure is disclosed. The method includes four steps. Step one calls for applying a primer (104) to a surface (102) of a tool (100). Step two requires applying a coating (106) to primer (104). Step three calls for curing primer (104) and coating (106). The last step calls for forming the composite structure on tool (100). More specifically, primer (104) may be a powdered primer, and coating (106) may be a powdered fluorinated organic compound.
    Type: Grant
    Filed: January 14, 2004
    Date of Patent: March 21, 2006
    Assignee: Northrop Grumman Corporation
    Inventors: Ernie R. Silva, Jerry W. Brimer, Sandra J. Stash
  • Apparatus and method for forming a composite structure
    Patent number: 6692817
    Abstract: A method for forming a composite structure is disclosed. The method includes four steps. Step one calls for applying a primer (104) to a surface (102) of a tool (100). Step two requires applying a coating (106) to primer (104). Step three calls for curing primer (104) and coating (106). The last step calls for forming the composite structure on tool (100). More specifically, primer (104) may be a powdered primer, and coating (106) may be a powdered fluorinated organic compound.
    Type: Grant
    Filed: April 4, 2000
    Date of Patent: February 17, 2004
    Assignee: Northrop Grumman Corporation
    Inventors: Ernie R. Silva, Jerry W. Brimer, Sandra J. Stash
  • Ceramic RAM film coating process
    Patent number: 6461432
    Abstract: A uniform coating of radar-absorbing material (RAM) is produced on small or intricate parts by suspending the part in a vessel, slowing filling the vessel with RAM slurry without turbulence from the bottom up, subsequently draining the slurry slowly without turbulence to leave a coating of RAM on the part, and repeating the process until a coating of sufficient thickness is obtained.
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: October 8, 2002
    Assignee: Northrop Grumman Corporation
    Inventors: Sandra J. Stash, Mark E. Cooper
  • Ceramic RAM film coating process
    Patent number: 6001425
    Abstract: A uniform coating of radar-absorbing material (RAM) is produced on small or intricate parts by suspending the part in a vessel, slowing filling the vessel with RAM slurry without turbulence from the bottom up, subsequently draining the slurry slowly without turbulence to leave a coating of RAM on the part, and repeating the process until a coating of sufficient thickness is obtained.
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: December 14, 1999
    Assignee: Northrop Grumman Corporation
    Inventors: Sandra J. Stash, Mark E. Cooper