公开(公告)号：US20240367396A1

公开(公告)日：2024-11-07

申请号：US18777027

申请日：2024-07-18

Applicant: The Boeing Company

Inventor： Remmelt Andrew Staal ,  Justin H. Register ,  Ernie Fidgeon ,  Glory C. Edwards ,  Gregory J. Smith

IPC: B29C73/02 ,  B29C73/10 ,  B29C73/26

Abstract: Disclosed herein are a repair apparatus, system, and method for a composite sandwich structure. The repair is suited for reinforcing a sandwich panel having a first sheet and a second sheet opposite the first sheet. A core is interposed between and coupled to the first sheet and the second sheet. The repair uses a potting compound packed into an abnormality of the core and located on the outer surface of the first sheet. A patch is coupled to the outer surface of the first sheet over the abnormality of the core and cured. The cured potting compound is interposed between and bonded to the patch and the abnormality of the core and bonded to the patch and the outer surface of the first sheet to form a structural reinforcement.

公开(公告)号：US11981096B2

公开(公告)日：2024-05-14

申请号：US17753629

申请日：2020-09-11

Applicant: SAFRAN NACELLES

Inventor： Erika Cavelier ,  Julien Helin

IPC: B29C73/10 ,  B29C73/26 ,  B29L31/30

CPC classification number: B29C73/10 ,  B29C73/26 ,  B29C2073/266 ,  B29L2031/3076 ,  Y10T156/1066 ,  Y10T156/1074 ,  Y10T428/20

Abstract: The present invention relates to a method for repairing a damaged thermal protection covering a nacelle structure for an aircraft turbojet engine by adding a repair thermal insulation blanket as well as a repair sheet onto the damaged part.

公开(公告)号：US11898062B2

公开(公告)日：2024-02-13

申请号：US17466149

申请日：2021-09-03

Applicant: Illinois Tool Works Inc.

Inventor： Mehdi Habibpour ,  Matt James Lertola ,  Carlton G. Seaboldt ,  Grant Shouldice

IPC: C09D7/40 ,  C09D167/00 ,  C09D5/00 ,  C09D7/61 ,  B33Y80/00 ,  B29C73/10 ,  B29C73/06 ,  B29B11/14 ,  B29C35/08

CPC classification number: C09D7/70 ,  B29B11/14 ,  B29C73/06 ,  B29C73/10 ,  B33Y80/00 ,  C09D5/002 ,  C09D7/61 ,  C09D167/00 ,  B29C35/0805 ,  B29C2035/0827

Abstract: A method of repairing a surface defect with a patch is provided. A fibrous substrate is impregnated with a formulation that includes a polyester resin, a crosslinking agent, a solvent, and a particulate filler. The fibrous substrate is contacted with the surface defect. The formulation is exposed to actinic radiation to induce cure of the formulation to form the patch to repair the surface defect. A kit is also provided that includes a bottle containing the formulation. A sheet of fibrous support material is also provided that is adapted to receive the formulation therethrough. Instructions for repairing a surface defect by the aforementioned method are also provided as part of the kit. 3D printing of an article to fit in the surface defect is also disclosed.

公开(公告)号：US11872781B2

公开(公告)日：2024-01-16

申请号：US17926035

申请日：2020-11-02

Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION GYEONGSANG NATIONAL UNIVERSITY ,  INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY

Inventor： Young Woo Nam ,  Gi Won Jeong ,  Jin Hwe Kweon ,  Jin Ho Choi ,  Joon hyung Shin ,  Bo Seong Kwon ,  Jong Gwan Yook ,  Yeong Hoon Noh

IPC: B29C73/10 ,  B64F5/40 ,  B64D7/00 ,  F41H3/00 ,  H01Q17/00

CPC classification number: B29C73/10 ,  B64F5/40 ,  B64D7/00 ,  F41H3/00 ,  H01Q17/00

Abstract: A method for repairing a damaged area of a stealth composite structure having a stealth function using a scarf patch includes the steps of diagnosing the damaged area; deriving a repair area including the diagnosed damaged area; processing the scarf patch according to the derived repair area; machining a patch hole according to the derived repair area to remove the damaged area; and coupling the scarf patch to the patch hole so that an inner wall of the patch hole and a side surface of the scarf patch face.

公开(公告)号：US11858222B2

公开(公告)日：2024-01-02

申请号：US17054263

申请日：2019-05-09

Applicant: DEUTSCHES ZENTRUM FÜR LUFT—UND RAUMFAHRT E.V.

Inventor： Lennert Heilmann

IPC: B29C65/00 ,  B29C59/00 ,  B29C59/02 ,  B29C73/10 ,  B29K105/08

CPC classification number: B29C66/0222 ,  B29C59/005 ,  B29C59/026 ,  B29C66/73161 ,  B29C66/73753 ,  B29C73/10 ,  B29K2105/0845

Abstract: The invention relates to a method for applying a material (30) to a fiber composite component within an application region (13) of the fiber composite component, the fiber composite component being produced from a fiber composite material having a fiber material (11) and a matrix material (12), the method comprising the following steps: —providing at least one monofilament woven fabric (20), in which a plurality of or all threads each consist of a single filament, —arranging the at least one monofilament woven fabric (20) on a fiber preform (10) in the application region (13), which fiber preform is formed from the fiber material (11) of the fiber composite material, —curing, in a common process step, the matrix material (12) of the fiber composite material, which matrix material embeds the fibers material (11) of the fiber preform (10), and a matrix material (12) embedding the monofilament woven fabric (20), thereafter the matrix material (12) of the fiber preform (10) and the matrix material (12) of the monofilament woven fabric (20) being at least partially cured, —tearing off the monofilament woven fabric (20) integrally bonded to the fiber preform (10), and—applying the material (30) in the application region (13) after the monofilament woven fabric (20) has been torn off.

公开(公告)号：US11820089B2

公开(公告)日：2023-11-21

申请号：US17092696

申请日：2020-11-09

Applicant: AIRBUS SAS ,  Airbus Operations S.A.S.

Inventor： Julien Charles ,  Franck Dobigeon ,  Guillaume Ferrer ,  Anthony Rince

IPC: B29C35/00 ,  B29C73/00 ,  B29C73/10 ,  B29C35/08 ,  B29L31/30

CPC classification number: B29C73/10 ,  B29C35/08 ,  B29C2795/002 ,  B29K2995/002 ,  B29L2031/3076

Abstract: An assembly includes a bag and of a composite panel exhibiting a damaged region to be repaired by polymerization of a repair piece using the bag. The bag includes a sheet intended to be laid over the panel. When the panel and the sheet are laid one atop of the other, the sheet exhibits regions capable of absorbing heat emitted by radiation onto it in a proportion that is dependent on the polymerization temperature needed for that region of the panel that corresponds to it, the radiation being partially absorbed by suitable colouration of the sheet in the region concerned. Determining those regions of the panel in which radiation is less well absorbed than in others means that the heating can be adapted to suit the needs of polymerization in terms of repair and that even polymerization can thus be obtained over the entire damaged region, thereby consolidating the repair.

公开(公告)号：US20230302750A1

公开(公告)日：2023-09-28

申请号：US17993778

申请日：2022-11-23

Applicant: RealD Inc.

Inventor： CHING-CHIN (JOHN) WU ,  WEN-SHAO (VINCENT) CHEN

IPC: B29C73/10 ,  E06B9/52

CPC classification number: B29C73/10 ,  E06B9/52 ,  E06B2009/525 ,  C09J9/00

Abstract: A screen repair patch and a screen flaw repair method. The screen repair patch includes an optical layer, a substrate layer, and an adhesion layer. The optical layer and a screen to be repaired have the same or similar optical performance. The substrate layer has a thickness of 10 to 250 microns. The adhesion layer has a thickness of 5 to 200 microns. In the screen flaw repair method, a repair patch is cut off from a region on a patch sheet corresponding to the position of a flaw of a screen, and the repair patch is attached to the corresponding position of the flaw of the screen by using a joining direction of the screen as an affixing direction of the repair patch. The screen repair patch and the screen flaw repair method of the present disclosure uses a patch that can be easily affixed and removed and can repair a flaw on site to maintain original optical efficiency and uniformity of a screen and are applied to a polarization-preserving screen to maintain high polarization contrast, so as to extend the service life of the screen.

公开(公告)号：US20230296128A1

公开(公告)日：2023-09-21

申请号：US18202537

申请日：2023-05-26

Applicant: Goodrich Corporation

Inventor： Brayton Reed ,  Joyel M. Schaefer ,  Michael King ,  Mark R. Gurvich

IPC: F16C3/02 ,  B29C73/10 ,  B60K17/24

CPC classification number: F16C3/026 ,  B29C73/10 ,  B60K17/24 ,  B29L2031/75

Abstract: A drive shaft has a central tubular portion formed of a polymer composite with imbedded fibers. It extends between a first end and a second end. The central tubular portion has an outer peripheral surface. There is at least one ring on the outer peripheral surface of the central tubular portion. A method of repairing a composite material tube includes the steps of (a) identifying a damaged area on a composite tube, and (b) placing a patch on a surface of the tube and over the damaged area.

公开(公告)号：US20230234309A1

公开(公告)日：2023-07-27

申请号：US17925195

申请日：2021-05-03

Applicant: REMA TIP TOP AG

Inventor： Christian CASPER ,  Florian KINZL ,  Sylvia MÜCKE

IPC: B29C73/10

CPC classification number: B29C73/10 ,  B29K2995/0088 ,  B29L2030/00

Abstract: A repair patch for an elastomeric element, particularly for a vehicle tire, use thereof and method for bonding a repair patch to an elastomeric element. The repair patch (1) comprises: a top layer (10), a bonding layer (30) for covering a wall (80) of the elastomeric element (40), and at least one intermediate layer (20) arranged between the bonding layer (30) and the top layer (10), wherein prior to vulcanization with the elastomeric element (40), the bonding layer (30) has a first and a second natural rubber component, wherein the first natural rubber component has a lower molecular weight Mw than the second natural rubber component, such that a mixture of the first and second natural rubber components has a bimodal molecular weight distribution.

公开(公告)号：US20230166870A1

公开(公告)日：2023-06-01

申请号：US17993165

申请日：2022-11-23

Applicant: Airbus Operations SAS

Inventor： Bruno CHAUVEAU ,  Olivier COLLIN ,  Olivier CHAUVET

IPC: B64F5/40 ,  B64C1/12 ,  B29C73/10 ,  B29C73/26

CPC classification number: B64F5/40 ,  B64C1/12 ,  B29C73/10 ,  B29C73/26 ,  B29C2073/264

Abstract: A method for repairing a damaged aircraft fuselage outer skin part, the damaged skin part comprising a static pressure port around which is arranged a stopper fastened to a structure of the fuselage at which a pipe of the static pressure port opens, the method including removing the stopper from the static port, fitting a patch including an opening for housing the stopper, and re-fitting the stopper on an adjustable-thickness spacer. A repair assembly configured to apply the repair method is also provided. Advantageously, it is thus possible to recreate an aerodynamic profile in accordance with the requirements for taking static pressure of the aircraft, with a reduced down-time of the aircraft.