Patents by Inventor Michael W. Evens

Michael W. Evens 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: 10434723
    Abstract: Methods and apparatus for fabricating adhesive bonded joints while minimizing the voids and/or porosity found in the cured bondline. In accordance with various embodiments, the apparatus comprises an evacuation chamber combined with a pressure inducing device to produce bonded joints that are both void free and thoroughly compacted. The surfaces to be bonded are continuously evacuated throughout the bonding process (pre-mating, mating, debulking and cure). Continuous evacuation is provided via standard vacuum, while the induced pressure can be pneumatically or mechanically provided.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: October 8, 2019
    Assignee: The Boeing Company
    Inventors: Megan Nicole Watson, Joseph L. Hafenrichter, Mary H. Vargas, Michael W. Evens
  • Patent number: 10336019
    Abstract: An in-situ double vacuum debulk (DVD) composite repair system designed to produce partially or fully cured autoclave-quality hot-bond composite repairs on contoured structures. The system provides vacuum pressure for hot bond repairs to be performed on flat and contoured structures using one set-up capable of debulking (partially curing) and then fully curing composite repairs on composite and metallic aircraft structures. The use of in-situ DVD also eliminates handling of the patch/adhesive when transferring from an off-aircraft DVD chamber to the repair site on the aircraft. This can increase the probability of successful repairs because the possibility of contaminating and misaligning the adhesive and repair patch are eliminated.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: July 2, 2019
    Assignee: The Boeing Company
    Inventors: Karl Edward Nelson, Michael W. Evens, John F. Spalding, Jr., James D. Chanes, Joel P. Baldwin, Paul S. Rutherford
  • Patent number: 10308002
    Abstract: Disclosed herein is a method of bonding a first part to a second part to form an assembly. The method includes positioning a plurality of adhesive spacers between the first part and the second part. Each adhesive spacer is made of a first curable adhesive in a cured state. The method further includes positioning at least one adhesive layer between the plurality of adhesive spacers and the first part and between the plurality of adhesive spacers and the second part. Each adhesive layer is made of the same first curable adhesive as the plurality of adhesive spacers, but in a non-cured state. The method further includes with the plurality of adhesive spacers between the first part, the second part, and the adhesive layers, curing the first part, the second part, and the adhesive layers.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: June 4, 2019
    Assignee: The Boeing Company
    Inventors: Thompson Nguyen, Michael W. Evens, Michael S. Goodrich, Lindsay R. Calhoun, Richard A. Binder
  • Publication number: 20190160803
    Abstract: Methods for reworking structures and reworked cellular core panels, reworked structures comprising the reworked cellular core panels, and guides and cutting apparatuses for reworking cellular acoustic panels and reworking cellular non-acoustic panels are disclosed.
    Type: Application
    Filed: November 29, 2017
    Publication date: May 30, 2019
    Inventors: Michael W Evens, Genesis Pilarca, Nihar A Desai, David M Walter, Ebonni J Adams, Nicole Titus, Shekar Vimala, Timothy S Barrett, John Spalding, Dan Perron
  • Publication number: 20190152173
    Abstract: An installation tool and method are provided to apply a patch to a structure while controlling the porosity in the bond line. An installation tool is provided that includes a frame defining an internal cavity. The installation tool also includes a flexible membrane that divides the internal cavity into a first chamber proximate the surface and a second chamber separated from the surface by the first chamber and the flexible membrane. The flexible membrane is releasably attached to the patch such that the patch faces the surface. The frame includes first and second vacuum ports into the first and second chambers, respectively, such that pressure therewithin is separately controllable. The pressure within the first and second chambers is controlled such that the adhesive is degassed while the patch remains spaced from the surface and the flexible membrane is thereafter caused to be stretched to urge the patch toward the surface.
    Type: Application
    Filed: January 23, 2019
    Publication date: May 23, 2019
    Applicant: The Boeing Company
    Inventors: Daniel J. PERRON, Michael W. EVENS, Jeffrey H. OLBERG
  • Patent number: 10216237
    Abstract: The present disclosure describes one or more systems, methods, routines and/or techniques for thermal management. One or more systems, methods, routines and/or techniques may provide advice or guidance (e.g., to a repair technician) regarding how to perform a hot bond repair, for example, on an aircraft component that has been damaged. The thermal management advisor may provide advice or guidance regarding how to prepare a repair field prior to running a thermal survey. For example, thermal management advisor may recommend a particular heat blanket, a configuration of the heat blanket, placement of various temperature sensors and other preparation guidance. The thermal management advisor may provide advice or guidance regarding how to alter or manage the repair setup during a thermal survey and during the actual curing process. For example, thermal management advisor may recommend particular temperature sensors or areas of the repair field that should be insulated.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: February 26, 2019
    Assignee: The Boeing Company
    Inventors: Michael W. Evens, Joseph Lawrence Hafenrichter, Joel Patrick Baldwin, Ronald G. Turner, Megan N. Watson
  • Patent number: 10207468
    Abstract: An installation tool and method are provided to apply a patch to a structure while controlling the porosity in the bond line. An installation tool is provided that includes a frame defining an internal cavity. The installation tool also includes a flexible membrane that divides the internal cavity into a first chamber proximate the surface and a second chamber separated from the surface by the first chamber and the flexible membrane. The flexible membrane is releasably attached to the patch such that the patch faces the surface. The frame includes first and second vacuum ports into the first and second chambers, respectively, such that pressure therewithin is separately controllable. The pressure within the first and second chambers is controlled such that the adhesive is degassed while the patch remains spaced from the surface and the flexible membrane is thereafter caused to be stretched to urge the patch toward the surface.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: February 19, 2019
    Assignee: THE BOEING COMPANY
    Inventors: Daniel J. Perron, Michael W. Evens, Jeffrey H. Olberg
  • Publication number: 20180339502
    Abstract: Disclosed herein is a method of bonding a first part to a second part to form an assembly. The method includes positioning a plurality of adhesive spacers between the first part and the second part. Each adhesive spacer is made of a first curable adhesive in a cured state. The method further includes positioning at least one adhesive layer between the plurality of adhesive spacers and the first part and between the plurality of adhesive spacers and the second part. Each adhesive layer is made of the same first curable adhesive as the plurality of adhesive spacers, but in a non-cured state. The method further includes with the plurality of adhesive spacers between the first part, the second part, and the adhesive layers, curing the first part, the second part, and the adhesive layers.
    Type: Application
    Filed: May 23, 2017
    Publication date: November 29, 2018
    Inventors: Thompson Nguyen, Michael W. Evens, Michael S. Goodrich, Lindsay R. Calhoun, Richard A. Binder
  • Patent number: 10022922
    Abstract: A patch may be used to rework a composite structure in the field. The patch is bonded to the structure by a layer of adhesive and includes perforations that allow the escape of air from the adhesive as the patch is compressed against the structure. A spacer may be introduced between the patch and the structure to control the thickness of the adhesive layer.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: July 17, 2018
    Assignee: The Boeing Company
    Inventors: Steven Donald Blanchard, Aydin Akdeniz, John Spalding, David M. Anderson, Michael W. Evens
  • Patent number: 10000019
    Abstract: An installation assembly and an associated method for forming a bonded join are provided to permit the adhesive attachment of a first workpiece, such as a patch, to a portion of a second workpiece. The installation assembly and the associated method provide for at least partial debulking of the adhesive prior to curing of the adhesive such that the resulting bondline may have improved mechanical properties as a result of having fewer voids and/or porosity. The installation assembly may include an installation stand and a carrier plate supported by the installation stand and including an attachment surface configured to carry the first workpiece. The installation stand also includes an adjustment mechanism for positioning a carrier plate to a first predefined position to define a gap between the first and second workpieces and also to a second predefined position such that a predetermined bondline thickness is defined between the first and second workpieces.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: June 19, 2018
    Assignee: The Boeing Company
    Inventors: Michael W. Evens, Megan Nicole Watson, Russell L. Keller, Nicholas H. Room, John F. Spalding, Mary Helen Vargas, James D. Chanes, Kathy Lynn Ferguson, Joseph Lawrence Hafenrichter
  • Patent number: 9993971
    Abstract: An apparatus for fabricating a stack of adhesive plies for attaching a doubler to a surface on a structure includes a digital scanner, configured for scanning the surface and for producing a first set of digital data representing a contour of the surface, and a computer, coupled to the digital scanner, having a processor and system memory. The computer is programmed for mapping a gap between a bonding surface on the doubler and the surface on the structure using the first set of digital data and a second set of digital data representing the bonding surface, and for segmenting the mapped gap into layers corresponding to the adhesive plies.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: June 12, 2018
    Assignee: THE BOEING COMPANY
    Inventors: Scott W. Lea, Gary E. Georgeson, Michael D. Fogarty, Michael W. Evens, Jeffrey M. Hansen
  • Publication number: 20180024601
    Abstract: The present disclosure describes one or more systems, methods, routines and/or techniques for thermal management. One or more systems, methods, routines and/or techniques may provide advice or guidance (e.g., to a repair technician) regarding how to perform a hot bond repair, for example, on an aircraft component that has been damaged. The thermal management advisor may provide advice or guidance regarding how to prepare a repair field prior to running a thermal survey. For example, thermal management advisor may recommend a particular heat blanket, a configuration of the heat blanket, placement of various temperature sensors and other preparation guidance. The thermal management advisor may provide advice or guidance regarding how to alter or manage the repair setup during a thermal survey and during the actual curing process. For example, thermal management advisor may recommend particular temperature sensors or areas of the repair field that should be insulated.
    Type: Application
    Filed: October 2, 2017
    Publication date: January 25, 2018
    Inventors: Michael W. Evens, Joseph Lawrence Hafenrichter, Joel Patrick Baldwin, Ronald G. Turner, Megan N. Watson
  • Patent number: 9817452
    Abstract: The present disclosure describes one or more systems, methods, routines and/or techniques for thermal management. One or more systems, methods, routines and/or techniques may provide advice or guidance (e.g., to a repair technician) regarding how to perform a hot bond repair, for example, on an aircraft component that has been damaged. The thermal management advisor may provide advice or guidance regarding how to prepare a repair field prior to running a thermal survey. For example, thermal management advisor may recommend a particular heat blanket, a configuration of the heat blanket, placement of various temperature sensors and other preparation guidance. The thermal management advisor may provide advice or guidance regarding how to alter or manage the repair setup during a thermal survey and during the actual curing process. For example, thermal management advisor may recommend particular temperature sensors or areas of the repair field that should be insulated.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: November 14, 2017
    Assignee: The Boeing Company
    Inventors: Michael W. Evens, Joseph Lawrence Hafenrichter, Joel Patrick Baldwin, Ronald G. Turner, Megan N. Watson
  • Publication number: 20160221257
    Abstract: An installation assembly and an associated method for forming a bonded join are provided to permit the adhesive attachment of a first workpiece, such as a patch, to a portion of a second workpiece. The installation assembly and the associated method provide for at least partial debulking of the adhesive prior to curing of the adhesive such that the resulting bondline may have improved mechanical properties as a result of having fewer voids and/or porosity. The installation assembly may include an installation stand and a carrier plate supported by the installation stand and including an attachment surface configured to carry the first workpiece. The installation stand also includes an adjustment mechanism for positioning a carrier plate to a first predefined position to define a gap between the first and second workpieces and also to a second predefined position such that a predetermined bondline thickness is defined between the first and second workpieces.
    Type: Application
    Filed: April 8, 2016
    Publication date: August 4, 2016
    Inventors: Michael W. Evens, Megan Nicole Watson, Russell L. Keller, Nicholas H. Room, John F. Spalding, Mary Helen Vargas, James D. Chanes, Kathy Lynn Ferguson, Joesph Lawrence Hafenrichter
  • Publication number: 20160207256
    Abstract: Methods and apparatus for fabricating adhesive bonded joints while minimizing the voids and/or porosity found in the cured bondline. In accordance with various embodiments, the apparatus comprises an evacuation chamber combined with a pressure inducing device to produce bonded joints that are both void free and thoroughly compacted. The surfaces to be bonded are continuously evacuated throughout the bonding process (pre-mating, mating, debulking and cure). Continuous evacuation is provided via standard vacuum, while the induced pressure can be pneumatically or mechanically provided.
    Type: Application
    Filed: March 16, 2016
    Publication date: July 21, 2016
    Applicant: The Boeing Company
    Inventors: Megan Nicole Watson, Joseph L. Hafenrichter, Mary H. Vargas, Michael W. Evens
  • Patent number: 9381730
    Abstract: A surrogate patch assembly for a rework area of a structure comprises a surrogate patch body which may be formed of a material for drawing moisture from the rework area. The patch assembly may include a sensor mounted to the surrogate patch body. The sensor may comprise a thermal sensor for sensing the temperature of the rework area and the surrogate patch body. The sensor may comprise a moisture sensor for sensing moisture drawn into the surrogate patch body.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: July 5, 2016
    Assignee: The Boeing Company
    Inventors: Michael W. Evens, Megan N. Watson, Mary H. Vargas
  • Publication number: 20160136941
    Abstract: An installation tool and method are provided to apply a patch to a structure while controlling the porosity in the bond line. An installation tool is provided that includes a frame defining an internal cavity. The installation tool also includes a flexible membrane that divides the internal cavity into a first chamber proximate the surface and a second chamber separated from the surface by the first chamber and the flexible membrane. The flexible membrane is releasably attached to the patch such that the patch faces the surface. The frame includes first and second vacuum ports into the first and second chambers, respectively, such that pressure therewithin is separately controllable. The pressure within the first and second chambers is controlled such that the adhesive is degassed while the patch remains spaced from the surface and the flexible membrane is thereafter caused to be stretched to urge the patch toward the surface.
    Type: Application
    Filed: November 19, 2014
    Publication date: May 19, 2016
    Inventors: Daniel J. Perron, Michael W. Evens, Jeffrey H. Olberg
  • Patent number: 9308693
    Abstract: Methods and apparatus for fabricating adhesive bonded joints while minimizing the voids and/or porosity found in the cured bondline. In accordance with various embodiments, the apparatus comprises an evacuation chamber combined with a pressure inducing device to produce bonded joints that are both void free and thoroughly compacted. The surfaces to be bonded are continuously evacuated throughout the bonding process (pre-mating, mating, debulking and cure). Continuous evacuation is provided via standard vacuum, while the induced pressure can be pneumatically or mechanically provided.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: April 12, 2016
    Assignee: The Boeing Company
    Inventors: Megan Nicole Watson, Joseph L. Hafenrichter, Mary H. Vargas, Michael W. Evens
  • Patent number: 9308688
    Abstract: An installation assembly and an associated method for forming a bonded join are provided to permit the adhesive attachment of a first workpiece, such as a patch, to a portion of a second workpiece. The installation assembly and the associated method provide for at least partial debulking of the adhesive prior to curing of the adhesive such that the resulting bondline may have improved mechanical properties as a result of having fewer voids and/or porosity. The installation assembly may include an installation stand and a carrier plate supported by the installation stand and including an attachment surface configured to carry the first workpiece. The installation stand also includes an adjustment mechanism for positioning a carrier plate to a first predefined position to define a gap between the first and second workpieces and also to a second predefined position such that a predetermined bondline thickness is defined between the first and second workpieces.
    Type: Grant
    Filed: March 20, 2013
    Date of Patent: April 12, 2016
    Assignee: The Boeing Company
    Inventors: Michael W. Evens, Megan Nicole Watson, Russell L. Keller, Nicholas H. Room, John F. Spalding, Mary Helen Vargas, James D. Chanes, Kathy Lynn Ferguson, Joesph Lawrence Hafenrichter
  • Publication number: 20150284570
    Abstract: The present disclosure is generally directed to a primer saturated carrier medium assembly including a carrier medium having a front face and an opposing rear face, a primer saturating the carrier medium between the front face and the opposing rear face, and removable film impenetrable to the primer covering opposite faces of the carrier medium. A method of applying primer to a surface includes applying a face of a primer saturated carrier medium to contact a surface, and curing the primer saturated carrier medium on the surface. A structure includes a primer saturated medium including a carrier medium having a front face and an opposing rear face, and a primer saturating the carrier medium between the front face and the opposing rear face. The structure further includes a surface adhered to the primer on one face of the primer saturated medium.
    Type: Application
    Filed: April 3, 2014
    Publication date: October 8, 2015
    Applicant: The Boeing Company
    Inventors: Michael W. Evens, Megan N. Watson, Joel P. Baldwin, Marcus A. Belcher