BR122013026810B8 - Caixa de velocidades de rotor de cauda para um helicóptero - Google Patents

Caixa de velocidades de rotor de cauda para um helicóptero

Info

Publication number
BR122013026810B8
BR122013026810B8 BR122013026810A BR122013026810A BR122013026810B8 BR 122013026810 B8 BR122013026810 B8 BR 122013026810B8 BR 122013026810 A BR122013026810 A BR 122013026810A BR 122013026810 A BR122013026810 A BR 122013026810A BR 122013026810 B8 BR122013026810 B8 BR 122013026810B8
Authority
BR
Brazil
Prior art keywords
output shaft
housing
tail rotor
shaft
pitch control
Prior art date
Application number
BR122013026810A
Other languages
English (en)
Other versions
BR122013026810A2 (pt
BR122013026810B1 (pt
Inventor
Terrence Newberry Paul
Original Assignee
Agustawestland Ltd
Leonardo UK Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Agustawestland Ltd, Leonardo UK Ltd filed Critical Agustawestland Ltd
Publication of BR122013026810A2 publication Critical patent/BR122013026810A2/pt
Publication of BR122013026810B1 publication Critical patent/BR122013026810B1/pt
Publication of BR122013026810B8 publication Critical patent/BR122013026810B8/pt

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/042—Guidance of lubricant
    • F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/042—Guidance of lubricant
    • F16H57/0427—Guidance of lubricant on rotary parts, e.g. using baffles for collecting lubricant by centrifugal force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/04—Helicopters
    • B64C27/12—Rotor drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/04—Helicopters
    • B64C27/12—Rotor drives
    • B64C27/14—Direct drive between power plant and rotor hub
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/82—Rotorcraft; Rotors peculiar thereto characterised by the provision of an auxiliary rotor or fluid-jet device for counter-balancing lifting rotor torque or changing direction of rotorcraft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/031—Gearboxes; Mounting gearing therein characterised by covers or lids for gearboxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/042—Guidance of lubricant
    • F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
    • F16H57/0426—Means for guiding lubricant into an axial channel of a shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/042—Guidance of lubricant
    • F16H57/043—Guidance of lubricant within rotary parts, e.g. axial channels or radial openings in shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0467—Elements of gearings to be lubricated, cooled or heated
    • F16H57/0469—Bearings or seals
    • F16H57/0471—Bearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/048—Type of gearings to be lubricated, cooled or heated
    • F16H57/0493—Gearings with spur or bevel gears
    • F16H57/0495—Gearings with spur or bevel gears with fixed gear ratio
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19991—Lubrication

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Details Of Gearings (AREA)
  • Valve Device For Special Equipments (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

LUBRIFICAÇÃO DE CAIXA DE VELOCIDADES. Uma caixa de velocidades de rotor de cauda de helicóptero que inclui uma carcaça, um eixo de saída para conexão a um rotor de cauda apoiado de modo rotativo na carcaça e tendo uma extremidade aberta naquele, um elemento de entrada apoiado de modo rotativo na carcaça, engrenagem que propicie uma conexão de transmissão de potência entre o elemento de entrada e o eixo de saída, um eixo de controle de passo para realizar uma mudança no passo do rotor de cauda, o eixo de controle de passo estando posicionado ao menos parcialmente dentro do eixo de saída, rotativo com ele, e móvel em relação àquele ao longo do eixo geométrico de rotação do eixo de saída, um elemento de acionamento para realizar movimento axial do eixo de controle de passo, o elemento de acionamento sendo móvel axialmente ao eixo de saída, mas impedido de girar com este, e um conjunto de mancal posicionado entre o eixo de controle de passo e o elemento de acionamento para permitir rotação relativa entre eles, onde a caixa de velocidades inclui ao menos uma estrutura para desviar óleo, disperso dentro da carcaça em uso, na direção da extremidade aberta do eixo de saída.
BR122013026810A 2011-02-17 2012-02-16 Caixa de velocidades de rotor de cauda para um helicóptero BR122013026810B8 (pt)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB1102763.8 2011-02-17
GB1102763.8A GB2488142B (en) 2011-02-17 2011-02-17 Tail rotor gearbox lubrication
BR112013021707A BR112013021707B8 (pt) 2011-02-17 2012-02-16 Caixa de velocidades de rotor de cauda de helicóptero, helicóptero e sistema de rotor de cauda de helicóptero
PCT/GB2012/050350 WO2012110820A2 (en) 2011-02-17 2012-02-16 Gearbox lubrication

Publications (3)

Publication Number Publication Date
BR122013026810A2 BR122013026810A2 (pt) 2019-08-06
BR122013026810B1 BR122013026810B1 (pt) 2021-07-20
BR122013026810B8 true BR122013026810B8 (pt) 2023-01-31

Family

ID=43859555

Family Applications (2)

Application Number Title Priority Date Filing Date
BR122013026810A BR122013026810B8 (pt) 2011-02-17 2012-02-16 Caixa de velocidades de rotor de cauda para um helicóptero
BR112013021707A BR112013021707B8 (pt) 2011-02-17 2012-02-16 Caixa de velocidades de rotor de cauda de helicóptero, helicóptero e sistema de rotor de cauda de helicóptero

Family Applications After (1)

Application Number Title Priority Date Filing Date
BR112013021707A BR112013021707B8 (pt) 2011-02-17 2012-02-16 Caixa de velocidades de rotor de cauda de helicóptero, helicóptero e sistema de rotor de cauda de helicóptero

Country Status (10)

Country Link
US (2) US9897193B2 (pt)
EP (2) EP2711292B1 (pt)
JP (2) JP6035250B2 (pt)
KR (2) KR101923753B1 (pt)
CN (2) CN103899739B (pt)
BR (2) BR122013026810B8 (pt)
CA (2) CA2827224C (pt)
GB (1) GB2488142B (pt)
RU (2) RU2581500C2 (pt)
WO (1) WO2012110820A2 (pt)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2488142B (en) 2011-02-17 2017-11-01 Agustawestland Ltd Tail rotor gearbox lubrication
US9945471B2 (en) * 2013-08-27 2018-04-17 Kawasaki Jukogyo Kabushiki Kaisha Lubricating apparatus for rotating shaft
US9587731B2 (en) * 2013-08-27 2017-03-07 Kawasaki Jukogyo Kabushiki Kaisha Lubricating apparatus for rotating shaft
CN103994202A (zh) * 2014-04-29 2014-08-20 成都市龙泉驿区齐盛机械厂 一种减速机
FR3021358B1 (fr) * 2014-05-23 2018-07-20 Safran Aircraft Engines Boite d'engrenages de turbomachine d'aeronef
DE102014210246A1 (de) * 2014-05-28 2015-12-03 Skf Lubrication Systems Germany Gmbh Schmierritzelmodul, Schmierritzel und Verfahren zum Herstellen eines Schmierritzelmoduls
JP5985692B1 (ja) * 2015-03-27 2016-09-06 本田技研工業株式会社 シャフトドライブ式車両
FR3059753B1 (fr) * 2016-12-02 2019-10-25 Renault S.A.S Dispositif de guidage d'huile de lubrification a l'interieur d'un arbre creux de boite de vitesses
KR101916075B1 (ko) * 2016-12-09 2018-11-07 현대자동차 주식회사 변속기 케이스의 윤활구조
RU2652867C1 (ru) * 2017-03-10 2018-05-03 Акционерное общество "Камов" Маслосистема редуктора вертолёта с резервированием контуров смазки и охлаждения
KR101916592B1 (ko) * 2017-06-22 2018-11-07 현대다이모스(주) 수동 변속기 회전축의 오일 가이드장치
DE102017222663B4 (de) * 2017-12-13 2022-07-14 Magna powertrain gmbh & co kg Getriebe und Verfahren zur Montage eines solchen Getriebes
US11486487B2 (en) 2018-11-02 2022-11-01 Sikorsky Aircraft Corporation Gearbox with integrated submersible lubricant pump
FR3100223A1 (fr) 2019-08-30 2021-03-05 Airbus Helicopters Boite de transmission de puissance, giravion équipé d’une telle boite de transmission et méthode de variation associée
FR3107087B1 (fr) * 2020-02-10 2022-08-05 Safran Trans Systems Boîtier de relais d’accessoires pour une turbomachine
CN112747108B (zh) * 2020-12-30 2022-05-24 苏州绿科智能机器人研究院有限公司 一种具有通气结构的减速器
CN113431889B (zh) * 2021-06-02 2022-06-21 中国航发湖南动力机械研究所 输出轴承送油机构、中间减速器及直升机
DE102021214477A1 (de) 2021-12-16 2023-06-22 Zf Friedrichshafen Ag Leitanordnung zum Leiten eines luft- und schwerkraftgeführten Spritzölfilms

Family Cites Families (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2454040A (en) * 1944-07-07 1948-11-16 Gen Electric Aircraft propeller
US2581923A (en) * 1947-11-25 1952-01-08 Firestone Tire & Rubber Co Auxiliary rotor for helicopters
GB715315A (en) * 1950-03-31 1954-09-15 Edward Charles Searls Improvements in or relating to the lubrication of gearing
US3138136A (en) * 1959-05-13 1964-06-23 Harry J Nichols Controllable reversible pitch propeller
US3450208A (en) * 1967-04-07 1969-06-17 Barton R E Dual drive mechanism
US3720387A (en) * 1968-11-15 1973-03-13 Viking Aircraft Corp Rotary wing system
US3645644A (en) 1970-01-22 1972-02-29 Hydro Drive Corp Interlocking variable-pitch propeller assembly
GB1340593A (en) * 1971-05-25 1973-12-12 Gkn Transmissions Ltd Lubrication of gearing
JPS5455261A (en) * 1977-10-12 1979-05-02 Toyota Motor Corp Lubricant induction unit for gear transmission
US4531692A (en) * 1982-03-15 1985-07-30 Ernesto Mateus Helicopter flight control and transmission system
IT1161530B (it) * 1983-10-26 1987-03-18 Agusta Aeronaut Costr Trasmissione per rotore anticoppia di elicotteri
JPS60116459A (ja) 1983-11-30 1985-06-22 Fuji Xerox Co Ltd 画像記録用ヘツド
JPS60116459U (ja) * 1984-01-13 1985-08-06 愛知機械工業株式会社 オイルチヤンネル
US5018407A (en) * 1989-10-27 1991-05-28 Scientific-Atlanta, Inc. Pedestal assembly having a reduced volume in a lubricant filled housing
US4987974A (en) * 1989-12-11 1991-01-29 Saturn Corporation Device to assist with the radial distribution of lubricating fluid from a rotating shaft
GB9223406D0 (en) 1992-11-07 1992-12-23 Automotive Products Plc A differential mechanism
US5411116A (en) * 1994-06-22 1995-05-02 United Technologies Corporation Self-scavenging, hybrid lubrication subsystem
US6065933A (en) * 1998-06-16 2000-05-23 Secord; Denver D. Folding rotor blade/propeller drive and pitch control actuator
JP2001336617A (ja) * 2000-05-31 2001-12-07 Suzuki Motor Corp 変速機の潤滑構造
FR2814522B1 (fr) * 2000-09-25 2002-12-13 Eurocopter France Dispositif de lubrification d'une boite de transmission de puissance presentant une orientation variable, en particulier pour un aeronef convertible a rotors basculants
JP4691265B2 (ja) * 2001-04-18 2011-06-01 本田技研工業株式会社 潤滑油供給構造
AU2002329966A1 (en) 2001-09-04 2003-03-18 Paul E. Arlton Rotor system for helicopters
JP2004169794A (ja) 2002-11-19 2004-06-17 Aisin Ai Co Ltd トランスミッションの軸内オイル供給構造
JP4701587B2 (ja) * 2003-06-02 2011-06-15 トヨタ自動車株式会社 電動式駆動装置
US7124857B2 (en) 2004-03-18 2006-10-24 Pratt & Whitney Canada Corp. Rotating shaft scavenging scoop
JP4581578B2 (ja) 2004-09-14 2010-11-17 トヨタ自動車株式会社 回転軸支持装置
FR2875329A1 (fr) * 2004-09-15 2006-03-17 St Microelectronics Sa Lecture de l'etat d'un element de memorisation non volatile
JP2006097714A (ja) * 2004-09-28 2006-04-13 Suzuki Motor Corp 変速機の潤滑装置
EP1739012B1 (en) * 2005-06-30 2008-03-26 Agusta S.p.A. Helicopter with an auxiliary lubricating circuit
RU2280594C1 (ru) * 2005-10-19 2006-07-27 Открытое Акционерное Общество "Московский Вертолетный Завод Им. М.Л. Миля" Хвостовой редуктор трансмиссии вертолета
JP2008144803A (ja) 2006-12-07 2008-06-26 Toyota Motor Corp 歯車変速機
JP2008196605A (ja) * 2007-02-13 2008-08-28 Aisin Ai Co Ltd 変速機における回転軸内への潤滑油供給装置
US7993425B2 (en) * 2007-11-28 2011-08-09 General Electric Company Free vortex air-oil separator
JP4894839B2 (ja) * 2008-10-08 2012-03-14 トヨタ自動車株式会社 動力伝達装置の潤滑構造
JP4807418B2 (ja) 2009-01-27 2011-11-02 トヨタ自動車株式会社 ディファレンシャル装置
DE102009056087B4 (de) 2009-11-30 2012-07-26 Gkn Driveline International Gmbh Verbindungsanordnung und Verfahren zur Herstellung einer Verbindungsanordnung
GB2488142B (en) 2011-02-17 2017-11-01 Agustawestland Ltd Tail rotor gearbox lubrication
FR2977637B1 (fr) * 2011-07-04 2015-07-24 Hispano Suiza Sa Boitier de relais d'accessoires d'une turbine a gaz integrant des moyens de desaccouplement

Also Published As

Publication number Publication date
JP2014510663A (ja) 2014-05-01
CN103899739A (zh) 2014-07-02
GB2488142B (en) 2017-11-01
RU2662374C2 (ru) 2018-07-25
EP2675707B1 (en) 2017-09-13
BR112013021707B8 (pt) 2022-11-22
KR102054021B1 (ko) 2019-12-09
CN103547507A (zh) 2014-01-29
CA2827224A1 (en) 2012-08-23
EP2711292A3 (en) 2017-06-07
US20140076662A1 (en) 2014-03-20
KR20140053866A (ko) 2014-05-08
BR122013026810A2 (pt) 2019-08-06
JP6035250B2 (ja) 2016-11-30
EP2711292B1 (en) 2018-07-18
CA3043699C (en) 2022-11-29
GB2488142A (en) 2012-08-22
US20130333506A1 (en) 2013-12-19
RU2013158716A (ru) 2015-07-10
JP6144177B2 (ja) 2017-06-07
WO2012110820A3 (en) 2013-07-25
JP2014196822A (ja) 2014-10-16
KR101923753B1 (ko) 2018-11-29
US9897193B2 (en) 2018-02-20
CA3043699A1 (en) 2012-08-23
BR112013021707A2 (pt) 2016-11-01
US9611929B2 (en) 2017-04-04
CA2827224C (en) 2019-11-26
BR112013021707B1 (pt) 2021-08-10
RU2581500C2 (ru) 2016-04-20
RU2013141239A (ru) 2015-03-27
CN103899739B (zh) 2017-01-11
EP2675707A2 (en) 2013-12-25
WO2012110820A2 (en) 2012-08-23
BR122013026810B1 (pt) 2021-07-20
GB201102763D0 (en) 2011-03-30
CN103547507B (zh) 2015-12-02
KR20140048097A (ko) 2014-04-23
EP2711292A2 (en) 2014-03-26

Similar Documents

Publication Publication Date Title
BR122013026810B8 (pt) Caixa de velocidades de rotor de cauda para um helicóptero
BR112018071910A2 (pt) redutor cicloidal com ajuste automático de recuo e sistema de direção assistida com tal redutor
BR112015026881A2 (pt) engrenagem de direção
BR112015013037A2 (pt) trem de pouso para reboque de múltiplas velocidades
BR112015004700A8 (pt) redutor com trem epicicloidal notavelmente para turbomáquina
BR112013002382A2 (pt) unidade de transmissão de propulsão e movimento, em particular para uma aeronave de asa giratória
BR102014019618A2 (pt) disposição de dobradiça acionada para um automóvel
BR112015025732A2 (pt) método para operar um maquinário de rotação e máquina de rotação
GB201217133D0 (en) Saw assembly with floating bearing for worm drive and motor shaft
BR112012029274A2 (pt) caixa de engrenagens em uma turbomáquina.
BR102019021711A2 (pt) atuador rotativo, método para operar um atuador rotativo, e, sistema de atuação rotacional
BR112014032610A2 (pt) disposição de acionamento para um veículo, veículo que inclui tal disposição de acionamento e método para controlar tal disposição de acionamento
WO2019024848A3 (zh) 一种鱼形线减速机
BR112016013784A2 (pt) Engrenagem planetária, gerador de vento compreendendo uma engrenagem planetária e uso de uma engrenagem planetária
RU2016150699A (ru) Низкопрофильное передаточное устройство с поворотными валами и соответствующий способ
BR112017021005A2 (pt) aparelho de perfuração
EP2620673A1 (en) Nose-wheel steering actuator
CN201490853U (zh) 组合电机
BR112017024999A2 (pt) ferramenta elétrica portátil compreendendo uma engrenagem de redução epicicloidal
BR112017021790A2 (pt) engrenagem cônica para lâminas de segadeira acionadas em uma maneira oscilante
EP2670029A3 (en) Electromechanical rotary actuator and method
BR102015021695A2 (pt) caixa de engrenagens, e, atuador de controle de voo
BR112015027355A2 (pt) acionamento e sistema com pelo menos um cilindro ou parafuso de extrusor acionado
UA70432U (ru) Пятиступенчатая коробка переключения скоростей с электромеханическим приводом управления
BR112016006119A2 (pt) turbina de recuperação de potência hidráulica e disposição de acionamento de equipamento giratória

Legal Events

Date Code Title Description
B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B03A Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 16/02/2012, OBSERVADAS AS CONDICOES LEGAIS.

B25G Requested change of headquarter approved

Owner name: AGUSTAWESTLAND LIMITED (GB)

B25G Requested change of headquarter approved

Owner name: AGUSTAWESTLAND LIMITED (GB)

B25L Entry of change of name and/or headquarter and transfer of application, patent and certificate of addition of invention: publication cancelled

Owner name: AGUSTAWESTLAND LIMITED (GB)

Free format text: ANULADA A PUBLICACAO CODIGO 25.7 NA RPI NO 2707 DE 22/11/2022 POR TER SIDO INDEVIDA.

B25A Requested transfer of rights approved

Owner name: LEONARDO UK LTD (GB)