公开(公告)号：US20240326352A1

公开(公告)日：2024-10-03

申请号：US18740695

申请日：2024-06-12

Applicant: The Boeing Company

Inventor： Shuonan Dong ,  Marko Oviir ,  Nicholas A. Boroughs

IPC: B29C70/30 ,  B29C70/54 ,  B29L31/30

CPC classification number: B29C70/30 ,  B29C70/54 ,  B29C70/545 ,  B29L2031/3076

Abstract: A method for forming a composite stiffener includes locating a composite sheet on a support surface such that a first sheet-portion of the composite sheet is supported on the support surface and a second sheet-portion of the composite sheet extends beyond the support surface. The method includes separating the second sheet-portion from the first sheet-portion to at least partially form a composite charge. The method includes transferring the composite charge onto a layup surface of a layup tool, wherein the layup surface comprises a curvature along a longitudinal tool-axis of the layup tool. The method includes selectively positioning the layup tool relative to a compaction device such that a compaction force, applied to the composite charge by the compaction device, is normal to the layup surface. The method includes compacting the composite charge on the layup surface to form a portion of the composite stiffener.

公开(公告)号：US20240307748A1

公开(公告)日：2024-09-19

申请号：US18676936

申请日：2024-05-29

Applicant: FUJIKURA COMPOSITES INC.

Inventor： Yoshihito KOGAWA ,  Keigo TAKAHASHI

IPC: A63B53/10 ,  A63B60/54 ,  B29C53/00 ,  B29C53/56 ,  B29C70/30 ,  B29K9/00 ,  B29K19/00 ,  B29K23/00 ,  B29K83/00 ,  B29K105/08 ,  B29K307/04 ,  B29L31/52

CPC classification number: A63B53/10 ,  B29C53/005 ,  B29C53/562 ,  B29C70/30 ,  A63B60/54 ,  A63B2209/02 ,  B29K2009/00 ,  B29K2019/00 ,  B29K2023/22 ,  B29K2083/00 ,  B29K2105/08 ,  B29K2307/04 ,  B29K2995/0089 ,  B29L2031/5227

Abstract: Provided is a golf club shaft having a lightweight property and exhibiting impact-absorption characteristics to suppress vibration at an impact of a golf ball. A golf club shaft, including a shaft body extending in a longitudinal direction, wherein the shaft body is composed of a composite material which has: a first member containing a fiber reinforced plastic; and a second member containing a rubber material and formed to be in direct contact with the first member within at least a part of a region on the first member, and in which the first member and the second member are integrated.

公开(公告)号：US12090743B2

公开(公告)日：2024-09-17

申请号：US17295265

申请日：2019-11-29

Applicant: TORAY INDUSTRIES, INC.

Inventor： Yasuhiro Sato ,  Tamotsu Suzuki ,  Ryota Nakao

IPC: B32B5/26 ,  B29C70/30 ,  B29K307/04 ,  B32B5/12 ,  B32B7/09

CPC classification number: B32B5/26 ,  B29C70/30 ,  B32B5/12 ,  B32B7/09 ,  B29K2307/04 ,  B32B2260/023 ,  B32B2262/106

Abstract: The present invention aims to provide a sheet-shaped reinforcing fiber substrate having shear deformability to conform to a three dimensional shape and restraining the generation of waste pieces to realize a large improve in the yield of reinforcing fibers and a reduction in production cost, and also provide a production method therefor.
The sheet-shaped reinforcing fiber substrate has a layered structure containing N layers (N being an integer of 3 or more) produced by arranging a plurality of reinforcing fiber bundles with appropriate lengths and meets the requirements (1) to (5) given below:



(1) in each layer, mutually adjacent reinforcing fiber bundles are aligned parallel to each other in such a manner that the clearance between mutually adjacent reinforcing fiber bundles is not smaller than the width of the reinforcing fiber bundles,
(2) the reinforcing fiber bundles in a layer and those in the layer located immediately above or below and in contact therewith are aligned in different directions,
(3) the length direction of the reinforcing fiber bundles in a randomly selected odd-numbered no'th layer (no being an odd number not less than 3 and not more than N) and the length direction of the reinforcing fiber bundles in the (no-2)'th layer are parallel to each other and the reinforcing fiber bundles in each layer do not overlap each other,
(4) in the case where N is 4 or more, the length direction of the reinforcing fiber bundles in a randomly selected even-numbered ne'th layer (ne being an even number not less than 4 and not more than N) and the length direction of the reinforcing fiber bundles in the (ne-2)'th layer are parallel to each other and the reinforcing fiber bundles in each layer do not overlap each other, and
(5) mutually intersecting reinforcing fiber bundles are joined together in at least part of the intersection regions where a reinforcing fiber bundles in any of the odd-numbered layers directly overlaps a reinforcing fiber bundle in any of the even-numbered layers.

公开(公告)号：US12077319B2

公开(公告)日：2024-09-03

申请号：US17454293

申请日：2021-11-10

Applicant: The Boeing Company

Inventor： Daniel R. Smith ,  Darrell D. Jones ,  Paul Chace Wilcoxson ,  Raviendra Sidath Suriyaarachchi ,  Robert William Whiting ,  Jeremy Evan Justice

IPC: B29C70/30 ,  B29C70/54 ,  B64C1/12 ,  B64F5/10 ,  B64F5/50 ,  B64C1/00

CPC classification number: B64F5/10 ,  B29C70/30 ,  B64F5/50 ,  B64C2001/0072 ,  B64C1/12

Abstract: Systems and methods are provided for fabricating a part on a mandrel. The system includes a series of stations divided into at least two groups of stations, wherein each group of stations performs fabrication operations on a particular zone of the mandrel.

公开(公告)号：US20240286370A1

公开(公告)日：2024-08-29

申请号：US18655963

申请日：2024-05-06

Applicant: Airbus Operations (S.A.S.)

Inventor： Jago Pridie

IPC: B29D99/00 ,  B29C51/26 ,  B29C70/30 ,  B29C70/44 ,  B29C70/46 ,  B29C70/54 ,  B29K105/00 ,  B29K105/12

CPC classification number: B29D99/0014 ,  B29C51/261 ,  B29C70/30 ,  B29C70/446 ,  B29C70/46 ,  B29C70/543 ,  B29K2105/12 ,  B29K2105/253

Abstract: A device for manufacturing a stiffened panel with reinforcements which each have a final thickness and a final height. The manufacturing device includes tools configured to each support a preform of fibers having a U-shaped or C-shaped cross section with a base and two wings. Each tool comprises, at at least one of its first and second lateral faces, a set-back portion which, when two tools are juxtaposed, delimits a recess configured to form a reinforcement during a consolidation or polymerization step. The tools are dimensioned such that each recess has a width, at the consolidation or polymerization temperature, that is substantially equal to the thickness of the reinforcements. This solution makes it possible to more effectively control the geometry of the stiffened panel by avoiding the formation of beads. A method for manufacturing a stiffened panel using the device is also disclosed.

公开(公告)号：US12053938B2

公开(公告)日：2024-08-06

申请号：US17701790

申请日：2022-03-23

Applicant: The Boeing Company

Inventor： Shuonan Dong ,  Marko Oviir ,  Nicholas A. Boroughs

IPC: B29C70/30 ,  B29C70/54 ,  B29L31/30

CPC classification number: B29C70/30 ,  B29C70/54 ,  B29C70/545 ,  B29L2031/3076

Abstract: A system for forming a composite stiffener includes a support surface to support a composite sheet and a sheet-locating device to locate the composite sheet such that a first sheet-portion is supported on the support surface and a second sheet-portion extends beyond the support surface. The system includes a separation device to separate the second sheet-portion from the first sheet-portion to at least partially form a composite charge. The system includes a layup tool including a longitudinal tool-axis and a layup surface configured to receive the composite charge. The layup surface includes a curvature along the longitudinal tool-axis. The system includes a compaction device to compact the composite charge on the layup surface. The system includes a tool-positioning device to position of the layup tool such that a compaction force, applied to the composite charge by the compaction device, is normal to the layup surface.

公开(公告)号：US12049548B2

公开(公告)日：2024-07-30

申请号：US17606859

申请日：2020-05-15

Applicant: Toray Industries, Inc.

Inventor： Yoshihumi Nakayama ,  Miho Onodera ,  Masato Honma

IPC: C08J5/24 ,  B29B11/16 ,  B29C70/00 ,  B29C70/30 ,  B29K105/08 ,  B32B5/12 ,  B32B27/08 ,  B32B27/12 ,  B32B27/38

CPC classification number: C08J5/243 ,  B29B11/16 ,  B29C70/003 ,  B29C70/0035 ,  B29C70/30 ,  B32B5/12 ,  B32B27/08 ,  B32B27/12 ,  B32B27/38 ,  B29K2105/0872 ,  B32B2260/046 ,  B32B2262/106 ,  C08J2363/00

Abstract: An object of the present invention is to provide a prepreg and a laminate for producing a laminate suitable as a structural material, which have excellent joining strength and can be firmly integrated with another structural member by welding. The present invention provides a prepreg including the following structural components: [A] reinforcing fibers, [B] a thermosetting resin, and [C] a thermoplastic resin, wherein [A] has a surface free energy, measured by a Wilhelmy method, of 10 to 50 mJ/m2, [C] is present on a surface of the prepreg, and the reinforcing fibers [A] are present, which are included in a resin area including [B] and a resin area including [C] across an interface between the two resin areas.

公开(公告)号：US12017421B2

公开(公告)日：2024-06-25

申请号：US17299866

申请日：2019-12-09

Applicant: Nanocomp Technologies, Inc.

Inventor： Mahdi Ghazizadeh ,  Eitan Zeira ,  Derek Kincaid ,  David Hatrick

IPC: B29C70/54 ,  B29C35/12 ,  B29C70/30 ,  B29L9/00

CPC classification number: B29C70/54 ,  B29C35/12 ,  B29C70/30 ,  B29K2713/00 ,  B29K2995/0005 ,  B29L2009/00

Abstract: A method of producing composites that are capable of being used in various industries, including the aerospace and automotive industries. In particular, the present disclosure relates to methods of curing one or more prepregs and/or a liquid curable composition using one or more self-supporting, nonwoven carbon nanotube sheets comprising substantially non-aligned carbon nanotubes.

公开(公告)号：US12005665B2

公开(公告)日：2024-06-11

申请号：US18064664

申请日：2022-12-12

Applicant: Airbus Operations (S.A.S.)

Inventor： Jago Pridie

IPC: B29D99/00 ,  B29C51/26 ,  B29C70/30 ,  B29C70/44 ,  B29C70/46 ,  B29C70/54 ,  B29K105/00 ,  B29K105/12

CPC classification number: B29D99/0014 ,  B29C51/261 ,  B29C70/30 ,  B29C70/446 ,  B29C70/46 ,  B29C70/543 ,  B29K2105/12 ,  B29K2105/253

Abstract: A device for manufacturing a stiffened panel with reinforcements which each have a final thickness and a final height. The manufacturing device includes tools configured to each support a preform of fibers having a U-shaped or C-shaped cross section with a base and two wings. Each tool comprises, at at least one of its first and second lateral faces, a set-back portion which, when two tools are juxtaposed, delimits a recess configured to form a reinforcement during a consolidation or polymerization step. The tools are dimensioned such that each recess has a width, at the consolidation or polymerization temperature, that is substantially equal to the thickness of the reinforcements. This solution makes it possible to more effectively control the geometry of the stiffened panel by avoiding the formation of beads. A method for manufacturing a stiffened panel using the device is also disclosed.

公开(公告)号：US11999471B2

公开(公告)日：2024-06-04

申请号：US17856579

申请日：2022-07-01

Applicant: Rohr, Inc.

Inventor： Daniel O. Ursenbach ,  Nathaniel M. Gray

IPC: B64C27/473 ,  B29C70/30 ,  B64C27/00 ,  B29L31/08

CPC classification number: B64C27/473 ,  B29C70/30 ,  B64C27/008 ,  B29L2031/082 ,  B64C2027/4736 ,  F05D2300/603

Abstract: A rotor blade is provided that includes an airfoil extending spanwise from a base to a tip. The airfoil extends longitudinally (e.g., chordwise) from a leading edge to a trailing edge. The airfoil extends laterally between a first side and a second side. The airfoil includes a body and a weight. The body includes a plurality of body layers. Each of the body layers includes fiber reinforcement within a body thermoplastic matrix. The weight includes a weight layer embedded within the body. The weight layer includes metal powder within a weight thermoplastic matrix.