Patents by Inventor David B. Hatfield

David B. Hatfield 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).

  • Patent number: 8461501
    Abstract: Embodiments of a guided munition are provided, as are embodiments of a method for equipping a guided munition with a self-deploying dome cover. In one embodiment, the guided munition includes a munition body, a seeker dome coupled to the munition body, and a self-deploying dome cover disposed over the seeker dome. The self-deploying dome cover is configured to deploy and expose the seeker dome during munition flight in response to aerodynamic forces acting on the self-deploying dome cover.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: June 11, 2013
    Assignee: Raytheon Company
    Inventors: Darin S. Williams, Nicholas B. Saccketti, David B. Hatfield, Alexandra L. Blake, Richard J. Wright, Lawrence A. Westhoven, Jr.
  • Patent number: 8258447
    Abstract: A frangible seal includes a first region penetratable by a deployable structure configured to selectably extend through an opening in a housing and extend beyond an outer surface of the housing, and a second region configured to adhere to a portion of the outer surface of the housing surrounding the opening. The first region and the second region includes a polymer layer having a metalized surface (e.g., aluminized polyimide) and a non-metalized surface, and an ablative coating provided on the metalized surface of the polymer layer.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: September 4, 2012
    Assignee: Raytheon Company
    Inventors: Alexandra L. Blake, David B. Hatfield, Rudy A. Eisentraut, Peter J. Drake
  • Publication number: 20120104148
    Abstract: Embodiments of a guided munition are provided, as are embodiments of a method for equipping a guided munition with a self-deploying dome cover. In one embodiment, the guided munition includes a munition body, a seeker dome coupled to the munition body, and a self-deploying dome cover disposed over the seeker dome. The self-deploying dome cover is configured to deploy and expose the seeker dome during munition flight in response to aerodynamic forces acting on the self-deploying dome cover.
    Type: Application
    Filed: November 2, 2010
    Publication date: May 3, 2012
    Applicant: RAYTHEON COMPANY
    Inventors: Darin S. Williams, Nicholas B. Saccketti, David B. Hatfield, Alexandra L. Blake, Richard J. Wright, Lawrence A. Westhoven, JR.
  • Patent number: 8104713
    Abstract: A reinforced inflatable wing improves the tolerance of the OML and reinforces the wing in at least the high load areas. This approach provides fitment constrained air vehicles with wings having increased surface area to improve flight endurance or aerodynamic control. A wing box forms a first portion of the wing. A skin having a plurality of rigid plates affixed thereto is inflated to form a second portion of the wing to either increase the chord length or lengthen the wing span. The skin is suitably inflated with foam to form a solid wing.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: January 31, 2012
    Assignee: Raytheon Company
    Inventors: Terry M. Sanderson, Rudy A. Eisentraut, David B. Hatfield
  • Publication number: 20110073709
    Abstract: A frangible seal includes a first region penetratable by a deployable structure configured to selectably extend through an opening in a housing and extend beyond an outer surface of the housing, and a second region configured to adhere to a portion of the outer surface of the housing surrounding the opening. The first region and the second region includes a polymer layer having a metalized surface (e.g., aluminized polyimide) and a non-metalized surface, and an ablative coating provided on the metalized surface of the polymer layer.
    Type: Application
    Filed: December 1, 2009
    Publication date: March 31, 2011
    Applicant: RAYTHEON COMPANY
    Inventors: Alexandra L. Blake, David B. Hatfield, Rudy A. Eisentraut, Peter J. Drake
  • Publication number: 20100237192
    Abstract: A reinforced inflatable wing improves the tolerance of the OML and reinforces the wing in at least the high load areas. This approach provides fitment constrained air vehicles with wings having increased surface area to improve flight endurance or aerodynamic control. A wing box forms a first portion of the wing. A skin having a plurality of rigid plates affixed thereto is inflated to form a second portion of the wing to either increase the chord length or lengthen the wing span. The skin is suitably inflated with foam to form a solid wing.
    Type: Application
    Filed: March 18, 2009
    Publication date: September 23, 2010
    Inventors: Terry M. Sanderson, Rudy A. Eisentraut, David B. Hatfield
  • Patent number: 7694578
    Abstract: A method of evaluating material properties of polymeric materials includes making one or more material samples or slabs, with each of the samples or slabs having a pair of material layers in contact with one another. The layers are layers of organic matrix polymer material that have different characteristics from each other, for example having a difference in composition and/or cure characteristics. Characteristics of the test slabs and the interface between the layers can be determined by examining curvatures of the test slabs. A number of samples may be made up having the same material in a first layer, and range of different materials in the respective second layers. The range may cover a range of various material compositions and/or cure characteristics.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: April 13, 2010
    Assignee: Raytheon Company
    Inventors: David B. Hatfield, Terry M. Sanderson, Renee M. Rodgers
  • Publication number: 20090114032
    Abstract: A method of evaluating material properties of polymeric materials includes making one or more material samples or slabs, with each of the samples or slabs having a pair of material layers in contact with one another. The layers are layers of organic matrix polymer material that have different characteristics from each other, for example having a difference in composition and/or cure characteristics. Characteristics of the test slabs and the interface between the layers can be determined by examining curvatures of the test slabs. A number of samples may be made up having the same material in a first layer, and range of different materials in the respective second layers. The range may cover a range of various material compositions and/or cure characteristics.
    Type: Application
    Filed: November 7, 2007
    Publication date: May 7, 2009
    Inventors: David B. Hatfield, Terry M. Sanderson, Renee M. Rodgers
  • Patent number: 7297753
    Abstract: A method for reducing the permeation rate of a permeable species through a polymeric material includes identifying a solubility-increasing species in the polymeric material having a reversible affinity for the permeable species, and removing or altering at least a portion of the solubility-increasing species in the polymeric material. In one application, the permeable species is water, and the solubility-increasing species is hygroscopic. A example of a polymeric material is an elastomeric polymer. The solubility-increasing species may be removed in part from an existing piece of the polymeric material by leaching it out. The polymeric material may instead be manufactured with a reduced content of the solubility-increasing species.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: November 20, 2007
    Assignee: Raytheon Company
    Inventor: David B. Hatfield