• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    METHOD FOR REPAIRING A MEMBER UNDERSTANDING A FIBER REINFORCED PLASTIC A method for repairing a limb comprising a fiber reinforced resin is described. This method can easily and inexpensively repair a through hole. When the repair of a through hole (20), a temporary hole (11) is formed, a sheet of fabric (30) comprising reinforced fibers is rolled into a cylinder and inserted into a temporary hole (11), the sheet of fabric is impregnated with a resin, the resin is stiffened, and a new through hole (20) is formed.
    公开号:BR112012020999B1
    申请号:R112012020999-0
    申请日:2011-01-26
    公开日:2020-10-27
    发明作者:Toshikazu Shigetomi；Koichi Hasegawa；Kaoru Onohara；Atsumi Tanaka
    申请人:Mitsubishi Aircraft Corporation；
    IPC主号:
    专利说明:

    Technical Field
    [0001] The present invention relates to a method for repairing a limb comprising fiber-reinforced plastic, which such method is used to form aircraft, ships, vehicles and the like. Prior Art
    [0002] In recent years, several members have been formed of fiber-reinforced plastic (resin) using carbon fibers and the like as a reinforcement. In the case where a member comprising a fiber reinforced plastic is attached to another structural member, in the case where another part or the like is attached to the member comprising the fiber reinforced plastic and in similar cases, a through hole is sometimes formed in the member comprising a fiber-reinforced plastic.
    [0003] When such a through hole is formed, in some cases, delamination occurs around the through hole, or the through hole is formed obliquely by work error.
    [0004] In addition, cracks and the like can be generated around the through hole by tightening a screw and nut and other fasteners with excessive force.
    [0005] To repair such a through hole, a method has been available in which a tapered hole is formed by removing a portion in the strip including the damaged portion around the through hole, a plug that comprises fiber-reinforced plastic and has a such that it adjusts the tapered orifice by connecting to the tapered orifice, and a new through-hole is reformed (for example, referring to Patent Literature 1). List of Citations Patent Literature Patent Literature 1: US Patent No. 5190611 Summary of the Invention Technical Problem
    [0006] In the method described above, unfortunately, time and effort are required to produce the plug comprising a fiber reinforced plastic. Also, to bring the plug into contact with the tapered orifice, the cone angles the plug and the tapered orifice must be formed with high aceraceous, which requires effort and cost.
    [0007] Additionally, although a conical orifice may correspond to through holes having diameters in a certain range, in order to correspond to through holes having several diameters, the preparation must be done in such a way that conical holes having a plurality of diameters can formed. Necessarily, plugs corresponding to these conical holes must be prepared, which cost a lot of money.
    [0008] The present invention was carried out to solve the above technical problems, and according to an object of the same it must provide a method for repairing a member comprising a fiber reinforced plastic, such a method can easily repair a through hole at low cost. Solution to the Problem
    [0009] To achieve the above project, the present invention provides a method for repairing a member comprising a fiber reinforced plastic, comprising the steps of forming a hole in a repair portion to be repaired of the member; wrapping a strip-shaped sheet of fabric comprising reinforcement fibers in a cylindrical shape and inserting the rolled-up sheet of tissue into the hole; impregnate the tissue sheet in the hole with a resin; and heating the resin with which the tissue sheet has been impregnated to cure the resin.
    [00010] The repair portion is, for example, a through hole formed in the limb. In this case, in the stage of forming the orifice, the orifice is formed by removing a band including the through-hole of the limb / i.e., the orifice is formed by enlarging the through-hole. After the tissue sheet has been inserted into this hole and impregnated with resin to fill the hole, a new through hole is formed. In this way, the through hole can be repaired.
    [00011] The repair portion is not limited to the through hole. For example, even when foreign matter enters the limb or a flaw is present in the limb, foreign matter or flaws are removed by the formation of the hole, the tissue sheet is inserted into this hole, and the tissue sheet is impregnated with the resin, through which repairs can be made.
    [00012] In the repair methods described above, as the tissue sheet only needs to be rolled up and inserted into the formed hole, a plug or similar corresponding to the diameter of the hole does not need to be prepared in advance.
    [00013] Additionally, the fabric sheet can be rolled into a cylindrical shape by being wrapped around a rod-shaped core material.
    [00014] Also, the hole can be tapered, and the tissue sheet can be rolled into a tapered shape and inserted into the hole. In addition in this case, the fabric sheet can be triangular or trapezoidal in such a way that the thickness of the fabric gradually decreases, and the fabric sheet can be rolled up in a conical shape. Therefore, the tissue sheet having been rolled into a conical shape is preferably inserted into the hole.
    [00015] In place of the tissue sheet described above, a prepreg sheet can also be used. That is, the present invention provides a method for repairing a member comprising fiber-reinforced plastic, comprising the steps of forming a hole in a repair portion to be repaired of the member; wrapping the strip-shaped prepreg sheet, which is formed by impregnating fibers reinforced with a resin, in a cylindrical shape and inserting the rolled prepreg sheet into the hole; and heating the resin with which the prepreg sheet has been impregnated to cure the resin. Advantageous Effects of the Invention
    [00016] According to the present invention, in the repair method, the hole should only be formed in the repair portion, and the fabric sheet should only be rolled up and inserted into the formed hole, so that a plug or the like corresponding to the orifice diameter does not need to be prepared in advance. In addition, the fabric sheet can be rolled into a cylindrical shape by being wrapped around a rod-shaped core material. Therefore, the through hole can be easily repaired at low cost.
    [00017] Also, when the through hole is repaired, as the roll of the tissue sheet in a cylindrical shape in order to wrap the newly formed through hole is present around the new through hole, effects of recovery of the support strength around through hole and recovery of bypass resistance can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS
    [00018] [FIG. 1] FIG. 1 is a view showing an example of a limb to which a method for repairing a limb comprising fiber-reinforced plastic is applied.
    [00019] [FIGS. 2A, 2B, 2C and 2D] FIGS. 2A, 2B, 2C and 2D are seen showing a flow of a method for repairing a member comprising a fiber reinforced plastic.
    [00020] [FIG. 3] FIG. 3 is a view showing an example of a case where a core material is used when the fabric sheet is rolled up.
    [00021] [FIGS. 4A, and 4B] FIGS. 4A, and 4B are seen showing an example of a case where a temporary orifice is tapered, FIG. 4A being a sectional view showing a member in which a temporary cone-shaped hole is formed, and FIG. 4B being a schematic view showing an example in which a sheet of fabric is rolled into a conical shape to be inserted into the temporary hole. DESCRIPTION OF THE MODALITIES
    [00022] The present invention will now be described in detail based on the modalities shown in the accompanying drawings. FIRST MODE
    [00023] FIGS. 1, 2A, 2B, 2C and 2D are seen to explain the method for repairing a member comprising a fiber reinforced plastic according to a first embodiment.
    [00024] As shown in FIG. 1, when a through hole 20, which is formed in a member 10 comprising a fiber-reinforced plastic which is formed by impregnating reinforcement fibers such as carbon fibers with a resin and is cured, is formed obliquely, or a problem such as delamination occurs around the through hole 20, to repair this through hole 20, first, the member 10 around the through hole 20 including a portion to be repaired is removed by cutting using various types of tools as shown in FIG. 2A. Therefore, a temporary orifice (orifice) 11 is formed in the member 10. This temporary orifice 11 is preferably of a shape that has a minimum required diameter.
    [00025] Next, as shown in FIG. 2B, a fabric sheet 30 comprising reinforcement fibers is rolled into a cylindrical shape and inserted (plugged) into the temporary hole 11. At this point, the fabric sheet 30 is preferably rolled up as tightly as possible.
    [00026] Furthermore, it is preferable that the fabric sheet 30 having a thickness W greater than the thickness of the member 10 is used so that when the fabric sheet 30 is inserted into the temporary hole 11, both end portions 30a and 30b the tissue sheet 30 having been rolled into a cylindrical shape protrudes from both surfaces of the member 10.
    [00027] Before or after the rolled fabric sheet 30 is inserted into the temporary hole 11, a ring-shaped support plate 31 having the same internal diameter as that of the temporary hole 11 is attached to both surfaces of the member 10 with an adhesive , an adhesive tape, or similar suitable connection means.
    [00028] Therefore, as shown in FIG. 2C, vacuum bags 33A and 33B are placed on both surfaces of the member 10 in order to cover the tissue sheet 30, which is inserted into the temporary hole 11, and the support plates 31. Also, on the underside of the temporary hole 11, a cover member 34 for closing the opening of the support plate 31 is mounted.
    [00029] For each of the vacuum bags 33A and 33B, a suction hose 40 of a vacuum cleaner is connected. In addition, for each of the vacuum bags 33A and 33B, an injection hose 41 of a resin injection device is connected.
    [00030] Thereafter, the atmosphere of a space in the vacuum bags 33A and 33B is sucked through the suction hose 40 by the use of a source of negative pressure generation such as a vacuum pump of the aspirator, through which the space in the temporary orifice 11, into which the tissue sheet 30 has been inserted, is made in a state of negative pressure.
    [00031] Then, a thermosetting resin is supplied through the injection hose 41 from a resin material tank of a resin injection device. By the negative pressure in the vacuum bags 33A and 33B, the resin is injected in the vacuum bags 33A and 33B, and the fabric sheet 30 in the temporary orifice 11 is impregnated with the resin.
    [00032] Next, the tissue sheet 30 and the resin in the temporary orifice 11 are heated by using an appropriate heater to cure the resin. By means of which, the member 10 is made in a state in which the temporary orifice 11 is filled with 100F fiber reinforced material.
    [00033] Thereafter, as shown in FIG. 3D, 100F fiber reinforced materials projecting from both surfaces of member 10 are removed using a cutting tool or the like.
    [00034] Then, by the formation of a new through hole 20 ', the repair of the through hole 20 is completed.
    [00035] As described above, the method of the first embodiment is such that when the through hole 20 is repaired, the temporary hole 11 is formed, the sheet of fabric comprising reinforcement fibers is rolled into a cylindrical shape and inserted into the temporary hole 11 , the fabric sheet 30 is impregnated with a resin and the resin is cured, and a new through hole 20 'is formed. By means of which, a previously molded plug does not need to be prepared, and the through hole 20 can be easily repaired.
    [00036] Also, according to the diameter of the through hole 20, the diameter of the rolled fabric sheet 30 only needs to be changed, so that the fabric sheet can match any through hole easily at low cost. Second modality
    [00037] In the following, a second embodiment of a method for repairing a limb comprising a fiber reinforced plastic according to the present invention is described. In the description below, the same reference signs are applied to elements common to those of the first modality, and the explanation of these elements is omitted.
    [00038] In this modality. The step of first forming the temporary orifice 11 is the same as the first step in the first embodiment.
    [00039] Next, the tissue sheet 30 comprising reinforcement fibers is rolled into a cylindrical shape and inserted (plugged) into the temporary hole 11. At this point, as shown in FIG. 3, the fabric sheet 30 is previously wound around a core material 50 comprising a plastic, metal or the like. By wrapping the tissue sheet 30 around the core material 50, the tissue sheet 30 can be rolled up easily and tightly compared to the first embodiment.
    [00040] The subsequent steps are the same as those of the first modality. That is, the atmosphere of the space in the vacuum bags 33A and 33B is sucked in by using a source of negative pressure generation such as the vacuum pump of the aspirator, through which the space in the temporary orifice 11 is made in a state negative pressure. Then, a thermostable resin is injected from the resin material tank of the resin injection device, and the tissue sheet 30 in the temporary orifice 11 is impregnated with the resin.
    [00041] Next, the fabric sheet 30 and the resin in the temporary orifice 11 are heated by using the appropriate heater to cure the resin, the 100F fiber reinforced materials and the 50 core materials projecting from both surfaces of the member 10 are removed by using the cutting tool or the like. By means of which, the member 10 is made in a state in which the temporary orifice 11 is filled with the 100F fiber reinforced material. therefore, by the formation of a new through hole 20 ', the repair of the through hole 20 is completed.
    [00042] Then, the same effects as those of the first modality can be achieved.
    [00043] Additionally, by wrapping the tissue sheet 30 around the core material 50, the tissue sheet 30 can be arranged in the temporary orifice 11 by the wrapping in an easy and compact manner.
    [00044] In the modalities described above, the temporary orifice 11 is of a straight shape having an equal diameter. However, the temporary orifice 11 can be conically shaped as shown in FIG. 4A.
    [00045] In this case, as shown in FIG. 4B, the fabric sheet 30 having a triangular shape or a trapezoidal shape is used, by means of which the fabric sheet 30 can be rolled into a conical shape corresponding to the temporary cone shaped hole 11.
    [00046] Still, in the modalities described above, the configuration is such that the fabric sheet 30 is impregnated with the resin by vacuum suction. However, the configuration can be made such that a so-called prepreg sheet, which is formed by impregnating, previously, the tissue sheet 30 with the resin is used and this prepreg sheet is rolled up and inserted into the temporary hole 11.
    [00047] In addition, the configurations described in the modalities described above can be selected, can be combined, or can be changed to other appropriate configurations without departing from the spirit and scope of the present invention. List of Reference Signs
    [00048] 10 ... limb, 11 ... temporary orifice (hole), 20 ... through hole, 30 ... tissue sheet, 33A, 33B ... vacuum bag, 34 ... limb cap, 40 ... suction hose, 41 ... injection hose, 50 ... core material, 100F ... fiber reinforced material
    权利要求:
    Claims (13)
    [0001]
    1. A method for repairing a limb (10) comprising a fiber-reinforced plastic, comprising the steps of: forming an orifice (11) in a repair portion to be repaired of the limb (10); wrapping a strip-shaped sheet of fabric (30) comprising reinforcement fibers in a cylindrical shape and inserting the rolled sheet of fabric (30) into the hole (11); according to a first option, impregnate the fabric sheet (30) in the hole (11) with a resin; or, according to a second alternative option, use a strip-shaped prepreg sheet (30) as the strip-shaped tissue sheet, whose strip-shaped prepreg sheet (30) is formed by impregnating fibers reinforced with a resin; and heating the resin with which the fabric sheet (30) was impregnated to cure the resin, characterized by the fact that the rolled fabric sheet (30) is inserted into the hole (11) formed in the repair portion to be repaired of the limb (10), and where a backing plate (31) is attached to the member (10) before the fabric sheet (30) or the prepreg sheet (30) is rolled cylindrically and the fabric sheet (30) rolled or the rolled prepreg sheet (30) is inserted into the hole (11), or after the rolled fabric sheet (30) or the rolled prepreg sheet (30) is inserted into the hole (11).
    [0002]
    2. Method for repairing a limb (10) comprising a fiber-reinforced plastic according to claim 1, characterized by the fact that: the repair portion is a through hole (20), and in the step of forming the hole (11 ), the orifice (11) is formed by removing a band including the through-hole (20) of the member (10); and in addition, the method comprises a step of forming a new through hole (20 ') after the resin has been heated and cured.
    [0003]
    3. Method for repairing a limb (10) comprising a fiber-reinforced plastic according to claim 1 or 2, characterized in that the fabric sheet (30) is rolled into a cylindrical shape by wrapping around a core material rod-shaped (50).
    [0004]
    4. Method for repairing a limb (10) comprising a fiber-reinforced plastic according to any of claims 1 to 3, characterized by the fact that the hole (11) is conical in shape, and the fabric sheet (30) it is rolled into a conical shape and inserted into the hole (11).
    [0005]
    5. Method for repairing a limb (10) comprising a fiber-reinforced plastic according to claim 4, characterized in that the fabric sheet (30) is triangular or trapezoidal in shape such that the thickness of it gradually decreases , and the fabric sheet (30) is rolled in a conical shape.
    [0006]
    6. Method for repairing a limb (10) comprising a fiber-reinforced plastic according to any one of claims 1 to 5, characterized by the fact that the support plate (31) is attached to both surfaces of the limb (10).
    [0007]
    Method for repairing a member (10) comprising a fiber-reinforced plastic according to any one of claims 1 to 6, characterized in that the backing plate (31) comprises a ring shape, and has the same internal diameter than the hole (11) in the repair portion.
    [0008]
    Method for repairing a limb (10) comprising a fiber-reinforced plastic according to any one of claims 1 to 7, characterized in that the backing plate (31) is attached to the limb (10) with an adhesive.
    [0009]
    Method for repairing a member (10) comprising a fiber-reinforced plastic according to any one of claims 1 to 8, characterized in that it additionally comprises a step of assembling a cover member (34) on one side of the hole (11) in the repair portion.
    [0010]
    10. Method for repairing a limb (10) comprising a fiber-reinforced plastic according to claim 1, characterized in that the backing plate (31) comprises an orifice that supports the fabric sheet (30) or the sheet prepreg (30) by means of a surface of the hole of the support plate (31).
    [0011]
    Method for repairing a limb (10) comprising a fiber-reinforced plastic according to any one of claims 1 to 5, characterized in that it further comprises a step of attaching the backing plate (31) to the limb (10) before the tissue sheet (30) or the prepreg sheet (30) is rolled up cylindrically and the tissue sheet (30) is inserted into the hole or after the tissue sheet (30) or the prepreg sheet (30) is rolled up be inserted into the hole (11), and mount a cover member (34) on one side of the hole (11) in the repair portion, where the cover member (34) is mounted on a different side on one side where the resin is injected into the hole (11) in the repair portion.
    [0012]
    12. Method for repairing a member (10) comprising a fiber-reinforced plastic according to claim 9, characterized in that the cap member (14) is mounted on a lower side in a vertical direction of the hole (11) in the repair portion.
    [0013]
    13. Method for repairing a member (10) comprising a fiber-reinforced plastic according to claim 9, characterized in that the fabric sheet (30) or the rolled prepreg sheet (30) is enclosed by a pouch vacuum (33A, 33B), where the side of the orifice (11) on which the cap member (34) is mounted is a side from which an atmosphere of a space in the vacuum bag (33A, 33B) is sucked .
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112012020999B1|2020-10-27|method for repairing a limb comprising fiber-reinforced plastic
    JP2007271083A|2007-10-18|Damaged hole repairing method and enlarged hole repairing kit
    BR102013014257B1|2020-12-01|apparatus and method for use in autoclave curing of a composite load
    US9815546B2|2017-11-14|Method for repairing honeycomb core sandwich structural body and repaired product
    US20170225410A1|2017-08-10|Tool and method for the manufacture of composite structures
    BR112015017742B1|2020-11-10|method and apparatus for reworking an area of a composite structure
    BRPI0513687B1|2015-12-01|method for punching an attachment to a plastic fuel tank and a plastic fuel tank
    EP2517865A1|2012-10-31|Replacing an aperture in a laminated component
    BRPI0722191A2|2014-04-08|VASE, METHOD OF MANUFACTURING A STRENGTHENED FIBER COMPOSITE VASE WITH A NON-CYLINDRIC FORMAT, AND, PRODUCTION PLANT TO PRODUCE A VASE
    BR102016012093A2|2016-11-29|method of forming a bevelled joint and molding tool
    JP5598842B2|2014-10-01|Repair method for members made of fiber reinforced resin
    BR112012032134B1|2019-12-10|profiled support element, process for manufacturing a profiled support element, as well as its use in a process for manufacturing a reinforced vehicle fuselage component
    CN106965457A|2017-07-21|A kind of compound propeller blade burst shaping is studied with transition Joining Technology
    CN206708606U|2017-12-05|A kind of reparation clamping and pressing fitting
    BR112019011344A2|2019-10-15|Method and system for fabricating a core for a wind turbine blade
    BR102019016508A2|2020-03-10|METHOD FOR MANUFACTURING A COMPOSITE CONNECTOR, COMPOSITE CONNECTOR, AND, CONNECTION SYSTEM
    US20190061280A1|2019-02-28|Method for Repairing a Composite Part
    US10160028B2|2018-12-25|Expanding flexible bladder to insert tool
    CN105156834A|2015-12-16|Method for repairing corrosion perforations of oilfield pressure pipeline tanks by blocking leakage with pressure
    KR20150087121A|2015-07-29|Joint molding
    KR101228039B1|2013-01-30|Tire puncture repairing material
    CN209146593U|2019-07-23|A kind of land spill response pipeline rehabilitation device
    BR112021001536A2|2021-04-20|process for producing a fibrous synthetic material comparison body and testing process
    JP2008069949A|2008-03-27|Repairing device
    BR112020022269A2|2021-02-23|method for welding rotor blade thermoplastic components
    同族专利:
    公开号 | 公开日
    US20140174635A1|2014-06-26|
    EP2540484B1|2021-07-21|
    EP2540484A1|2013-01-02|
    US20130025770A1|2013-01-31|
    WO2011105007A1|2011-09-01|
    US9701073B2|2017-07-11|
    CA2790995A1|2011-09-01|
    US8696842B2|2014-04-15|
    JP2011173321A|2011-09-08|
    EP2540484A4|2018-01-24|
    CA2790995C|2016-01-05|
    BR112012020999A2|2016-05-03|
    BR112012020999B8|2020-11-24|
    JP5653634B2|2015-01-14|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    BE630576A|1962-04-09|
    US3773097A|1971-04-21|1973-11-20|Whitmore E|Device for repairing tire punctures|
    US4867822A|1987-08-04|1989-09-19|The Boeing Corporation|Method for in-place fabrication of graphite epoxy bushings in graphite epoxy structures|
    DE4019744C2|1990-06-21|1994-05-26|Poly Id Ag Steckborn|Device for repairing components made of plastic, in particular made of fiber composite materials|
    US5190611A|1991-02-13|1993-03-02|The Boeing Company|Bearing load restoration method for composite structures|
    JPH11348141A|1998-06-12|1999-12-21|Taiei Shoko Kk|Method for repairing erected molded body, sheet, and its preparation|
    JP3795375B2|2001-10-31|2006-07-12|株式会社ブリヂストン|Surface refinishing method for resin moldings|
    US7367362B2|2004-12-03|2008-05-06|Illinois Tool Works Inc.|System and method for pipe repair|
    JP4764011B2|2005-01-04|2011-08-31|富士重工業株式会社|Repair method for defective parts of composite materials|
    US20070095457A1|2005-11-02|2007-05-03|The Boeing Company|Fast line maintenance repair method and system for composite structures|
    US7650678B2|2006-03-30|2010-01-26|United Technologies Corporation|Fabric bushing installation to repair a hole|
    JP2009285917A|2008-05-28|2009-12-10|Mitsubishi Heavy Ind Ltd|Method for repairing composite material structure and composite material structure|US20120272637A1|2011-04-28|2012-11-01|Brian Kenneth Holland|Replacing an aperture in a laminated component|
    US8945321B2|2011-05-30|2015-02-03|The Boeing Company|Method and apparatus for reworking structures using resin infusion of fiber preforms|
    DE112012003671T5|2011-09-04|2014-07-03|Honda Motor Co., Ltd.|Fiber-reinforced plastic element and method for producing a fiber-reinforced plastic element|
    US9004112B2|2012-03-12|2015-04-14|United Technologies Corporation|Method for adhesive bonding plug details for composite structures|
    FR3002181B1|2013-02-21|2015-02-20|Airbus Operations Sas|DEVICE AND METHOD FOR REPAIRING DEFORMABLE CORRUGATED RINGS WITH A DAMAGED AREA OF AN INTERMEDIATE LAYER OF A MULTILAYER STRUCTURE|
    US9665172B2|2013-09-03|2017-05-30|Tobii Ab|Portable eye tracking device|
    FR3014967B1|2013-12-13|2016-07-29|Airbus Operations Sas|DEVICE FOR FIXING AN OBJECT BY LIQUID INJECTION|
    US20150185128A1|2013-12-26|2015-07-02|The Boeing Company|Detection and Assessment of Damage to Composite Structure|
    US9434139B2|2014-05-01|2016-09-06|The Boeing Company|Structural integrated repair method and system tool device for repairing delaminated composite structures|
    EP2944455A1|2014-05-14|2015-11-18|AIRBUS HELICOPTERS DEUTSCHLAND GmbH|A method of repairing a sandwich component having a honeycomb core which is arranged between a first and a second cover plate|
    JP6417712B2|2014-05-21|2018-11-07|日産自動車株式会社|Part fastening structure|
    JP2016016548A|2014-07-07|2016-02-01|国立研究開発法人宇宙航空研究開発機構|Repair method of damaged part of material containing thermoplastic resin|
    US10288097B2|2014-08-06|2019-05-14|Honda Motor Co., Ltd.|Fiber-reinforced resin member and method for producing fiber-reinforced resin member|
    GB201516039D0|2015-09-10|2015-10-28|Short Brothers Plc|Method for designing and fitting, via interference, an insert into an opening in a non-metallic material|
    US9659556B1|2016-02-24|2017-05-23|The Boeing Company|Methods of repairing an acoustic sandwich panel and acoustic sandwich panel repair kits therefor|
    法律状态:
    2018-04-10| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-07-16| B06T| Formal requirements before examination [chapter 6.20 patent gazette]|
    2019-11-12| B07A| Technical examination (opinion): publication of technical examination (opinion) [chapter 7.1 patent gazette]|
    2020-04-14| B07A| Technical examination (opinion): publication of technical examination (opinion) [chapter 7.1 patent gazette]|
    2020-08-18| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-10-27| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 26/01/2011, OBSERVADAS AS CONDICOES LEGAIS. |
    2020-11-24| B16C| Correction of notification of the grant|Free format text: REF. RPI 2599 DE 27/10/2020 QUANTO AO ENDERECO. |
    优先权:
    申请号 | 申请日 | 专利标题
    JP2010038989A|JP5653634B2|2010-02-24|2010-02-24|Repair method for members made of fiber reinforced resin|
    JP2010-038989|2010-02-24|
    PCT/JP2011/000399|WO2011105007A1|2010-02-24|2011-01-26|Method for repairing a member comprising a fiber-reinforced resin|
    [返回顶部]