Patents by Inventor Raviendra S. Suriyaarachchi

Raviendra S. Suriyaarachchi 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: 11904538
    Abstract: An example method for simultaneously manufacturing a plurality of objects is described. The method includes simultaneously cycling a plurality of pallets through a conveyor system. The conveyor system is cyclical, and the conveyor system includes an entrance point for each pallet, an exit point, and a plurality of manufacturing points corresponding to a plurality of manufacturing devices. Simultaneously cycling the plurality of pallets includes simultaneously cycling the plurality of pallets past the plurality of manufacturing points for two or more cycles, wherein each pallet is associated with a set of manufacturing instructions for a corresponding object. The method further includes, while simultaneously cycling the plurality of pallets through the conveyor system, using a different combination of the plurality of manufacturing devices to manufacture each object in accordance with the set of manufacturing instructions associated with each pallet, thereby manufacturing different objects for each pallet.
    Type: Grant
    Filed: October 19, 2021
    Date of Patent: February 20, 2024
    Assignee: The Boeing Company
    Inventors: Daniel R. Smith, Darrell D. Jones, Raviendra S. Suriyaarachchi
  • Patent number: 11806947
    Abstract: There is provided a forming system for forming a contoured composite structure having a complex curved configuration. The forming system includes a receiving station having a receiving assembly to receive a composite charge to be formed. The forming system includes a forming station having a forming assembly. The forming assembly includes a gantry assembly, an upper die assembly movably coupled to the gantry assembly, a lower die assembly coupled to a floor support beam positioned between the gantry assembly, and one or more pick-and-place devices movably coupled to the gantry assembly. The upper die assembly is separate from, and independently movable with respect to, the lower die assembly. The pick-and-place device(s) are designed to move the composite charge, and the contoured composite structure. The forming system includes a tray station having a tray assembly designed to receive the contoured composite structure from the forming station.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: November 7, 2023
    Assignee: The Boeing Company
    Inventors: Raviendra S. Suriyaarachchi, Darrell Darwin Jones, Antonio Martinez, Valentín Forte
  • Patent number: 11780182
    Abstract: A self-threading lamination head has a material supply drum, a backing layer collection drum, and a material threading system. The material supply drum supports a material roll of layup material backed by a backing layer. The material threading system includes at least one threading belt located on one side of the lamination head. The threading belt is supported by belt rollers driven by a belt drive motor. A belt-mounted layer engagement device is coupled to the threading belt for engaging a backing layer leading edge portion. The backing layer collection drum collects the backing layer as the lamination head applies the layup material onto a substrate. The belt drive motor drives the threading belt over the belt rollers and causes the belt-mounted layer engagement device to thread the backing layer through the lamination head, and position the backing layer leading edge portion proximate the backing layer collection drum.
    Type: Grant
    Filed: November 23, 2021
    Date of Patent: October 10, 2023
    Assignee: The Boeing Company
    Inventors: Raviendra S. Suriyaarachchi, Darrell D. Jones, James R. Kendall, Paul D. Shaw, Sergio Urzainqui
  • Publication number: 20230311435
    Abstract: Provided are methods and devices for supporting of variety of different pre-cured composite stringers after forming and prior to curing. A post-forming processing device comprises a base with a channel for receiving hat portions of different stringers. The device also comprises a support structure, at least partially extending within the channel. The support structure is configured to conform to different hat portions and to retain the shape of these hat portions. For example, the support structure is made from a flexible material, which conforms to any shape variations. In some examples, the support structure is made from a jamming material that is reshaped together with each of the pre-cured composite stringers. A post-forming processing device is used for supporting different pre-cured composite stringers while various operations are performed on these stringers, such as stringer trimming, inspection, installation of bladders and noodles, and the like.
    Type: Application
    Filed: June 7, 2023
    Publication date: October 5, 2023
    Applicant: The Boeing Company
    Inventors: Samuel J. Knutson, James R. Kendall, Raviendra S. Suriyaarachchi
  • Patent number: 11766840
    Abstract: There is provided a forming apparatus for forming a high contour composite structure. The forming apparatus includes an upper die and a lower die between which a composite charge is formed. The forming apparatus further includes a plurality of load cells, a control system, and an overlay tool assembly coupled to the upper die. The overlay tool assembly has scalloped sections positioned between pairs of the plurality of load cells, and positioned against portion(s) of the composite charge. The composite charge has ply discontinuity features through the one or more portions. The overlay tool assembly denies pressure and a through thickness compaction to the one or more portions of the composite charge during a forming process, to allow one or more plies in the one or more portions to move after the forming process, and to enable in-plane bending of the high contour composite structure in post-forming operations.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: September 26, 2023
    Assignee: The Boeing Company
    Inventors: James R. Kendall, Raviendra S. Suriyaarachchi, Andrew E. Modin
  • Patent number: 11724422
    Abstract: A system for preparing a bladder for use in manufacturing a composite stringer includes a sock application station, a film application station, and a composite ply application station. The sock application station has a sock cartridge configured to progressively apply a breather sock of breather material in tubular form onto a bladder as the bladder exits the sock cartridge to thereby result in a sock-bladder assembly. The film application station is located downstream of the sock application station and is configured to inflate a film from a flat shape into an open film tube prior to application over the sock-bladder assembly to thereby result in a film-sock-bladder assembly.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: August 15, 2023
    Assignee: The Boeing Company
    Inventors: Robert W. Whiting, Darrell D. Jones, Paul Chace Wilcoxson, Raviendra S. Suriyaarachchi
  • Patent number: 11707896
    Abstract: Provided are methods and devices for supporting of variety of different pre-cured composite stringers after forming and prior to curing. A post-forming processing device comprises a base with a channel for receiving hat portions of different stringers. The device also comprises a support structure, at least partially extending within the channel. The support structure is configured to conform to different hat portions and to retain the shape of these hat portions. For example, the support structure is made from a flexible material, which conforms to any shape variations. In some examples, the support structure is made from a jamming material that is reshaped together with each of the pre-cured composite stringers. A post-forming processing device is used for supporting different pre-cured composite stringers while various operations are performed on these stringers, such as stringer trimming, inspection, installation of bladders and noodles, and the like.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: July 25, 2023
    Assignee: The Boeing Company
    Inventors: Samuel J. Knutson, James R. Kendall, Raviendra S. Suriyaarachchi
  • Patent number: 11697278
    Abstract: A membrane assembly for vacuum bagging includes an elongate sheet of flexible material capable of being rolled up into a cylindrical configuration and unrolled from the cylindrical configuration into a flattened-out configuration, a bistable tape spring attached to or captured by the elongate sheet, and an inflatable tube attached to or captured by the elongate sheet. The bistable tape spring has a first stable state which is a straightened-out state, a second stable state which is a rolled-up state, and a transition state between the first and second stable states. The inflatable tube is sealed at one end and has an orifice at the other end for admission of a fluid therethrough for inflation of the inflatable tube.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: July 11, 2023
    Assignee: The Boeing Company
    Inventors: James R. Kendall, Santiago M. Mejia, Andrew M. Huckey, Raviendra S. Suriyaarachchi
  • Patent number: 11660831
    Abstract: A lamination head for laying up a composite laminate includes a material supply drum supporting roll of layup material backed by a backing layer, a first and second separation device respectively having a first and second horn, and a first and second compaction device. When the first separation device is extended, the first horn is in close proximity to the first compaction device, causing a layup material to separate from the backing layer and move underneath the first compaction device as the lamination head moves along a first direction of travel. When the second separation device is extended, the second horn is in close proximity to the second compaction device, causing the layup material to separate from the backing layer and move underneath the second compaction device as the lamination head moves along a second direction of travel opposite the first direction of travel.
    Type: Grant
    Filed: November 23, 2021
    Date of Patent: May 30, 2023
    Assignee: Ths Boeing Company
    Inventors: Darrell D. Jones, Raviendra S. Suriyaarachchi, James R. Kendall, Paul D. Shaw, Sergio Urzainqui, Manuel Motilva
  • Publication number: 20230063884
    Abstract: There is provided a forming apparatus for forming a high contour composite structure. The forming apparatus includes an upper die and a lower die between which a composite charge is formed. The forming apparatus further includes a plurality of load cells, a control system, and an overlay tool assembly coupled to the upper die. The overlay tool assembly has scalloped sections positioned between pairs of the plurality of load cells, and positioned against portion(s) of the composite charge. The composite charge has ply discontinuity features through the one or more portions. The overlay tool assembly denies pressure and a through thickness compaction to the one or more portions of the composite charge during a forming process, to allow one or more plies in the one or more portions to move after the forming process, and to enable in-plane bending of the high contour composite structure in post-forming operations.
    Type: Application
    Filed: August 30, 2021
    Publication date: March 2, 2023
    Inventors: James R. Kendall, Raviendra S. Suriyaarachchi, Andrew E. Modin
  • Publication number: 20220242064
    Abstract: There is provided a forming system for forming a contoured composite structure having a complex curved configuration. The forming system includes a receiving station having a receiving assembly to receive a composite charge to be formed. The forming system includes a forming station having a forming assembly. The forming assembly includes a gantry assembly, an upper die assembly movably coupled to the gantry assembly, a lower die assembly coupled to a floor support beam positioned between the gantry assembly, and one or more pick-and-place devices movably coupled to the gantry assembly. The upper die assembly is separate from, and independently movable with respect to, the lower die assembly. The pick-and-place device(s) are designed to move the composite charge, and the contoured composite structure. The forming system includes a tray station having a tray assembly designed to receive the contoured composite structure from the forming station.
    Type: Application
    Filed: January 24, 2022
    Publication date: August 4, 2022
    Inventors: Raviendra S. Suriyaarachchi, Darrell Darwin Jones, Antonio Martinez, Valentin Forte
  • Publication number: 20220242065
    Abstract: There is provided a pick-and-place system for transferring and installing a contoured composite structure onto a mandrel, in a composite manufacturing system. The pick-and-place system includes a tray station having a tray assembly to hold the contoured composite structure, prior to transfer and installation onto the mandrel. The pick-and-place system further includes an installation station having the mandrel and a pick-and-place assembly. The mandrel is designed to receive the contoured composite structure, and designed to move along a moving manufacturing line, via a conveyor assembly. The pick-and-place assembly includes a gantry assembly, a main beam suspended from the gantry assembly, the main beam having a plurality of end effector assemblies and a plurality of indexing assemblies, a vacuum system coupled to the main beam, a load balancer assembly coupling the main beam to the gantry assembly, and a control system coupled to the pick-and-place assembly, to operably control the pick-and-place-assembly.
    Type: Application
    Filed: January 24, 2022
    Publication date: August 4, 2022
    Inventors: Darrell Darwin Jones, Raviendra S. Suriyaarachchi, Antonio Martinez, Bret Rodeheaver
  • Patent number: 11396143
    Abstract: A system for manufacturing a composite assembly includes a first mandrel, a second mandrel, a first wrap plate, and a second wrap plate. The first wrap plate and the second wrap plate are positionable in side-by-side relation for receiving a wrap material stack. The first wrap plate and/or the second wrap plate are translatable to a wrap plate open position defining a wrap plate gap between the first and second wrap plate surface edge for receiving a bladder. The second mandrel is translatable to a mandrel open position defining a mandrel gap between the first and second mandrel surface edge. The wrap plate gap and the mandrel gap are configured to receive the wrap material stack formed around a bladder. The first and second wrap plate are configured to fold a first and second material stack base portion into overlapping relation with each other on the bladder top.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: July 26, 2022
    Assignee: The Boeing Company
    Inventors: James R. Kendall, Raviendra S. Suriyaarachchi, Paul D. Shaw, James F. Mitman
  • Patent number: 11390046
    Abstract: A tubular material application system for applying a tubular material onto an elongate mandrel includes a gripper system including a first gripper and a second gripper configured to move with inchworm-type movement along an elongated mandrel and incrementally apply a tubular material onto the mandrel to thereby result in a tubular material-mandrel assembly.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: July 19, 2022
    Assignee: The Boeing Company
    Inventors: Darrell D. Jones, Paul Chace Wilcoxson, Raviendra S. Suriyaarachchi
  • Publication number: 20220212352
    Abstract: A part transfer system includes a movable support, a plurality of arms coupled to the movable support, and an end effector coupled to each of the plurality of arms. The end effector includes a body and a plurality of dividers each coupled to the body. The plurality of dividers divides the body into a plurality of partitions. The end effector includes a plurality of vacuum ports each in fluid communication with one of the plurality of partitions. The part transfer system further includes a vacuum source in fluid communication with at least one of the plurality of vacuum ports. Each of the plurality of vacuum ports is configured to draw a fluid from the plurality of partitions to establish a vacuum between the end effector and a part that is engaged with the end effector, thereby securing the part to the end effector.
    Type: Application
    Filed: September 9, 2021
    Publication date: July 7, 2022
    Applicant: The Boeing Company
    Inventors: James R. Kendall, Paul D. Shaw, Raviendra S. Suriyaarachchi, Santiago M. Mejia, Samantha Eberhardt, Samuel J. Knutson, Brian S. Carpenter, Byron J. Autry
  • Publication number: 20220176653
    Abstract: A self-threading lamination head has a material supply drum, a backing layer collection drum, and a material threading system. The material supply drum supports a material roll of layup material backed by a backing layer. The material threading system includes at least one threading belt located on one side of the lamination head. The threading belt is supported by belt rollers driven by a belt drive motor. A belt-mounted layer engagement device is coupled to the threading belt for engaging a backing layer leading edge portion. The backing layer collection drum collects the backing layer as the lamination head applies the layup material onto a substrate. The belt drive motor drives the threading belt over the belt rollers and causes the belt-mounted layer engagement device to thread the backing layer through the lamination head, and position the backing layer leading edge portion proximate the backing layer collection drum.
    Type: Application
    Filed: November 23, 2021
    Publication date: June 9, 2022
    Inventors: Raviendra S. Suriyaarachchi, Darrell D. Jones, James R. Kendall, Paul D. Shaw, Sergio Urzainqui
  • Publication number: 20220176656
    Abstract: A lamination head for laying up a composite laminate includes a material supply drum supporting roll of layup material backed by a backing layer, a first and second separation device respectively having a first and second horn, and a first and second compaction device. When the first separation device is extended, the first horn is in close proximity to the first compaction device, causing a layup material to separate from the backing layer and move underneath the first compaction device as the lamination head moves along a first direction of travel. When the second separation device is extended, the second horn is in close proximity to the second compaction device, causing the layup material to separate from the backing layer and move underneath the second compaction device as the lamination head moves along a second direction of travel opposite the first direction of travel.
    Type: Application
    Filed: November 23, 2021
    Publication date: June 9, 2022
    Inventors: Darrell D. Jones, Raviendra S. Suriyaarachchi, James R. Kendall, Paul D. Shaw, Sergio Urzainqui, Manuel Motilva
  • Publication number: 20220168953
    Abstract: An example method for simultaneously manufacturing a plurality of objects is described. The method includes simultaneously cycling a plurality of pallets through a conveyor system. The conveyor system is cyclical, and the conveyor system includes an entrance point for each pallet, an exit point, and a plurality of manufacturing points corresponding to a plurality of manufacturing devices. Simultaneously cycling the plurality of pallets includes simultaneously cycling the plurality of pallets past the plurality of manufacturing points for two or more cycles, wherein each pallet is associated with a set of manufacturing instructions for a corresponding object. The method further includes, while simultaneously cycling the plurality of pallets through the conveyor system, using a different combination of the plurality of manufacturing devices to manufacture each object in accordance with the set of manufacturing instructions associated with each pallet, thereby manufacturing different objects for each pallet.
    Type: Application
    Filed: October 19, 2021
    Publication date: June 2, 2022
    Inventors: Daniel R. Smith, Darrell D. Jones, Raviendra S. Suriyaarachchi
  • Publication number: 20220143938
    Abstract: There is provided a forming apparatus for constraining a composite charge and forming the composite charge into a highly contoured composite structure. The forming apparatus includes a first die and a second die between which the composite charge is formed. The first die has pairs of first die portions spaced apart to define a die cavity into which the composite charge is formed into a contoured hat section having a cap. The forming apparatus includes a constraining assembly having a constraining device positioned in the die cavity. The constraining device is designed to constrain a cap portion, and to apply an upward resistive force against the cap portion, and against a downward compressive force applied by the second die, to provide wrinkle prevention in the cap as the contoured hat section is formed. The constraining assembly has a retaining element to retain the constraining device.
    Type: Application
    Filed: October 15, 2021
    Publication date: May 12, 2022
    Inventors: Richard E. Heath, Andrew E. Modin, Richard A. Prause, Paul D. Shaw, Raviendra S. Suriyaarachchi
  • Patent number: 11285641
    Abstract: Described are methods and systems for manufacturing curved composite stringers. Such composite stringers may have in-plane and/or out-of-plane bends, which are formed while shaping composite charges. Specifically, a composite charge is shaped using a pallet, comprising a plurality of independent pallet portions, rotatably coupled to each other. A hat portion is formed when a part of this charge is conformed to a cavity in the pallet. The pallet portions are rotated relative to each other while forming the hat portion and/or when the hat portion already conforms to the cavity. In some examples, the die is bent together with the charge, when the pallet portions are rotated. This rotation produces one or more of in-plane and/or out-of-plane bends. In some examples, flange portions of the composite charge are positioned in a temporary orientation, e.g., to enable bending of the charge and reduce wrinkles.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: March 29, 2022
    Assignee: The Boeing Company
    Inventors: Steven J. Plummer, Kurtis S. Willden, Raviendra S. Suriyaarachchi, Paul D. Shaw, James R. Kendall, Darrell D. Jones