Patents by Inventor Charles R. Prebil

Charles R. Prebil 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: 11524471
    Abstract: A system and method for forming a composite part. The apparatus comprises a sleeve that molds a composite material. The sleeve has a first face and a second face. The second face has features to mold the composite material. The first face comprises a first inclined surface having an angle less than about 90 degrees and greater than about 0 degrees.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: December 13, 2022
    Assignee: The Boeing Company
    Inventors: Charles R. Prebil, James R. Fox
  • Patent number: 10899081
    Abstract: An apparatus for thermoplastic welding includes at least one tool configured to support first and second thermoplastic composite parts in a first welding position having one or more joint lines between the first and second thermoplastic composite parts. The tool includes a plurality of induction coils. The apparatus further includes a susceptor removably positioned along the one or more joint lines. The susceptor is configured to heat the one or more joint lines when exposed to a magnetic flux generated by the plurality of induction coils to bond the first and second thermoplastic composite parts along the one or more joint lines. The apparatus also includes a susceptor removal device coupled to the susceptor and configured to remove the susceptor during bonding of the first and second thermoplastic composite parts.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: January 26, 2021
    Assignee: The Boeing Company
    Inventors: Marc R. Matsen, Bret Alan McGinness Voss, Alexander M. Rubin, Charles R. Prebil
  • Publication number: 20200180231
    Abstract: An apparatus for thermoplastic welding includes at least one tool configured to support first and second thermoplastic composite parts in a first welding position having one or more joint lines between the first and second thermoplastic composite parts. The tool includes a plurality of induction coils. The apparatus further includes a susceptor removably positioned along the one or more joint lines. The susceptor is configured to heat the one or more joint lines when exposed to a magnetic flux generated by the plurality of induction coils to bond the first and second thermoplastic composite parts along the one or more joint lines. The apparatus also includes a susceptor removal device coupled to the susceptor and configured to remove the susceptor during bonding of the first and second thermoplastic composite parts.
    Type: Application
    Filed: December 6, 2018
    Publication date: June 11, 2020
    Inventors: Marc R. Matsen, Bret Alan McGinness Voss, Alexander M. Rubin, Charles R. Prebil
  • Publication number: 20200047434
    Abstract: A system and method for forming a composite part. The apparatus comprises a sleeve that molds a composite material. The sleeve has a first face and a second face. The second face has features to mold the composite material. The first face comprises a first inclined surface having an angle less than about 90 degrees and greater than about 0 degrees.
    Type: Application
    Filed: October 22, 2019
    Publication date: February 13, 2020
    Inventors: Charles R. Prebil, James R. Fox
  • Patent number: 10449736
    Abstract: A system and method for forming a composite part. The apparatus comprises a sleeve that molds a composite material. The sleeve has a first face and a second face. The second face has features to mold the composite material. The first face comprises a first inclined surface having an angle less than about 90 degrees and greater than about 0 degrees.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: October 22, 2019
    Assignee: The Boeing Company
    Inventors: Charles R. Prebil, James R. Fox
  • Patent number: 10434726
    Abstract: Thermoplastic composite parts are produced by automated fiber placement followed by stamp forming a layup having tailored fiber orientations. The tailored fiber orientations are achieved by tow steering and result in a layup that does not wrinkle during forming.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: October 8, 2019
    Assignee: The Boeing Company
    Inventors: Gregory James Schoepen Hickman, James R. Fox, Charles R. Prebil, Randall Dow Wilkerson
  • Patent number: 10232532
    Abstract: Consolidation tooling is used in a continuous compression molding machine to produce a fiber reinforced thermoplastic part having a varying height. The tooling includes first and second tool dies adapted to compress and form a multi-ply stack of thermoplastic prepreg into a part, and at least a first tooling sleeve movable through the first and second tool dies. The tooling sleeve has at least a first tapered portion engageable with the multi-ply stack.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: March 19, 2019
    Assignee: The Boeing Company
    Inventors: Charles R. Prebil, James R. Fox, Randall Dow Wilkerson, Sharon Sher Ying Wong
  • Patent number: 10076883
    Abstract: An off-axis prepreg material manufacturing machine may include a robot configured to position a prepreg piece adjacent to an end of a prepreg layer. The machine may additionally include an alignment system configured to sense a position of the prepreg piece relative to the prepreg layer and generate a position signal representative thereof. The machine may also include a controller configured to receive the position signal and cause the robot to adjust the position of the prepreg piece such that an end edge of the prepreg piece and an end edge of the prepreg layer are in substantially abutting contact.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: September 18, 2018
    Assignee: The Boeing Company
    Inventors: Charles R. Prebil, James R. Fox, Randall D. Wilkerson
  • Patent number: 9662742
    Abstract: A method and apparatus is presented. A method may comprise positioning a metallic bladder within a tool, the tool having a number of die liners that generate heat when exposed to a magnetic field; applying the magnetic field to the number of die liners to heat the metallic bladder; and pressurizing the metallic bladder.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: May 30, 2017
    Assignee: THE BOEING COMPANY
    Inventors: Marc Rollo Matsen, Alexander M. Rubin, Randall Dow Wilkerson, Carey E. Wilkinson, James Rodney Fox, Charles R. Prebil, Gregory James Schoepen Hickman, Jeffery Lee Marcoe
  • Patent number: 9545761
    Abstract: A device changes the shape of a die used to compression mold a part. The device includes a sleeve placed between the die and a charge to be molded. The sleeve has an inner face generally conforming to a face of the die, and a outer face for molding a part.
    Type: Grant
    Filed: February 17, 2014
    Date of Patent: January 17, 2017
    Assignee: THE BOEING COMPANY
    Inventors: Charles R. Prebil, James R. Fox, Alexander M. Rubin, Randall D. Wilkerson
  • Publication number: 20160325509
    Abstract: An off-axis prepreg material manufacturing machine may include a robot configured to position a prepreg piece adjacent to an end of a prepreg layer. The machine may additionally include an alignment system configured to sense a position of the prepreg piece relative to the prepreg layer and generate a position signal representative thereof. The machine may also include a controller configured to receive the position signal and cause the robot to adjust the position of the prepreg piece such that an end edge of the prepreg piece and an end edge of the prepreg layer are in substantially abutting contact.
    Type: Application
    Filed: May 5, 2015
    Publication date: November 10, 2016
    Inventors: Charles R. Prebil, James R. Fox, Randall D. Wilkerson
  • Patent number: 9358764
    Abstract: A method of forming a structural assembly may include providing a first component and a second component to be joined together. The method may additionally include scanning a contour of a first mating surface of the first component and scanning a contour of a second mating surface of the second component. The method may further include producing a thermoplastic element having opposing first and second element surfaces substantially matching a contour of the first mating surface and the second mating surface.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: June 7, 2016
    Assignee: The Boeing Company
    Inventors: Charles R. Prebil, James R. Fox
  • Patent number: 9238338
    Abstract: A composite structure having a contoured cross section is fabricated by assembling a flat ply stack and forming the stack. The full plies in the stack are tacked through their entire thickness and the partial plies are tacked to individual ones of the full plies in a manner that enables the plies to slip in relation to each other, preventing wrinkling and distortion of the plies during forming.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: January 19, 2016
    Assignee: THE BOEING COMPANY
    Inventors: Randall Dow Wilkerson, James R. Fox, Charles R. Prebil
  • Publication number: 20150165746
    Abstract: A method of forming a structural assembly may include providing a first component and a second component to be joined together. The method may additionally include scanning a contour of a first mating surface of the first component and scanning a contour of a second mating surface of the second component. The method may further include producing a thermoplastic element having opposing first and second element surfaces substantially matching a contour of the first mating surface and the second mating surface.
    Type: Application
    Filed: February 18, 2014
    Publication date: June 18, 2015
    Applicant: The Boeing Company
    Inventors: Charles R. Prebil, James R. Fox
  • Publication number: 20150053333
    Abstract: A system and method for forming a composite part. The apparatus comprises a sleeve that molds a composite material. The sleeve has a first face and a second face. The second face has features to mold the composite material. The first face comprises a first inclined surface having an angle less than about 90 degrees and greater than about 0 degrees.
    Type: Application
    Filed: November 12, 2014
    Publication date: February 26, 2015
    Inventors: Charles R. Prebil, James R. Fox
  • Publication number: 20150013894
    Abstract: A method and apparatus is presented. A method may comprise positioning a metallic bladder within a tool, the tool having a number of die liners that generate heat when exposed to a magnetic field; applying the magnetic field to the number of die liners to heat the metallic bladder; and pressurizing the metallic bladder.
    Type: Application
    Filed: July 7, 2014
    Publication date: January 15, 2015
    Inventors: Marc Rollo Matsen, Alexander M. Rubin, Randall Dow Wilkerson, Carey E. Wilkinson, James Rodney Fox, Charles R. Prebil, Gregory James Schoepen Hickman, Jeffery Lee Marcoe
  • Publication number: 20140314894
    Abstract: A device changes the shape of a die used to compression mold a part. The device includes a sleeve placed between the die and a charge to be molded. The sleeve has an inner face generally conforming to a face of the die, and a outer face for molding a part.
    Type: Application
    Filed: February 17, 2014
    Publication date: October 23, 2014
    Applicant: The Boeing Company
    Inventors: Charles R. Prebil, James R. Fox, Alexander M. Rubin, Randall D. Wilkerson
  • Patent number: 8691137
    Abstract: A device changes the shape of a die used to compression mold a part. The device includes a sleeve placed between the die and a charge to be molded. The sleeve has an inner face generally conforming to a face of the die, and a outer face for molding a part.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: April 8, 2014
    Assignee: The Boeing Company
    Inventors: Charles R. Prebil, James R. Fox, Alexander M. Rubin, Randall D. Wilkerson
  • Publication number: 20130149498
    Abstract: A composite structure having a contoured cross section is fabricated by assembling a flat ply stack and forming the stack. The full plies in the stack are tacked through their entire thickness and the partial plies are tacked to individual ones of the full plies in a manner that enables the plies to slip in relation to each other, preventing wrinkling and distortion of the plies during forming.
    Type: Application
    Filed: December 7, 2011
    Publication date: June 13, 2013
    Applicant: THE BOEING COMPANY
    Inventors: Randall Dow Wilkerson, James R. Fox, Charles R. Prebil
  • Publication number: 20100225016
    Abstract: A device changes the shape of a die used to compression mold a part. The device includes a sleeve placed between the die and a charge to be molded. The sleeve has an inner face generally conforming to a face of the die, and a outer face for molding a part.
    Type: Application
    Filed: March 4, 2009
    Publication date: September 9, 2010
    Inventors: Charles R. Prebil, James R. Fox, Alexander M. Rubin, Randall D. Wilkerson