IT8448487A0 - Perfezionamento nelle pale dei rotori di elicotteri - Google Patents

Perfezionamento nelle pale dei rotori di elicotteri

Info

Publication number: IT8448487A0
Authority: IT; Italy
Prior art keywords: improvement; rotor blades; helicopter rotor; helicopter; blades
Prior art date: 1983-07-04

Application number

IT8448487A

Other languages

English (en)

Other versions

IT1177861B (it

Inventor

Perry Frederick John

Original Assignee

Westland Plc

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.)

1983-07-04

Filing date

1984-07-02

Publication date

1984-07-02

1984-07-02 Application filed by Westland Plc filed Critical Westland Plc

1984-07-02 Publication of IT8448487A0 publication Critical patent/IT8448487A0/it

1987-08-26 Application granted granted Critical

1987-08-26 Publication of IT1177861B publication Critical patent/IT1177861B/it

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
- B64C27/46—Blades

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Aviation & Aerospace Engineering (AREA)
Structures Of Non-Positive Displacement Pumps (AREA)
Lubricants (AREA)

IT48487/84A 1983-07-04 1984-07-02 Perfezionamento nelle pale dei rotori di elicotteri IT1177861B (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB8318109		1983-07-04

Publications (2)

Publication Number	Publication Date
IT8448487A0 true IT8448487A0 (it)	1984-07-02
IT1177861B IT1177861B (it)	1987-08-26

Family

ID=10545219

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT48487/84A IT1177861B (it)	1983-07-04	1984-07-02	Perfezionamento nelle pale dei rotori di elicotteri

Country Status (3)

Country	Link
US (1)	US4668169A (it)
CA (1)	CA1243993A (it)
IT (1)	IT1177861B (it)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4976587A (en) *	1988-07-20	1990-12-11	Dwr Wind Technologies Inc.	Composite wind turbine rotor blade and method for making same
US5209643A (en) *	1991-03-27	1993-05-11	The Cessna Aircraft Company	Tapered propeller blade design
US5433586A (en) *	1991-03-27	1995-07-18	Cessna Aircraft Company	Tapered propeller blade design
GB9112835D0 (en) *	1991-06-14	1992-05-27	Westland Helicopters	Helicopter rotor blades
US5173023A (en) *	1991-08-12	1992-12-22	Cannon Energy Corporation	Wind turbine generator blade and retention system
US5417548A (en) *	1994-01-14	1995-05-23	Midwest Research Institute	Root region airfoil for wind turbine
US5562420A (en) *	1994-03-14	1996-10-08	Midwest Research Institute	Airfoils for wind turbine
US6068446A (en) *	1997-11-20	2000-05-30	Midwest Research Institute	Airfoils for wind turbine
US6996720B1 (en) *	1999-12-17	2006-02-07	Microsoft Corporation	System and method for accessing protected content in a rights-management architecture
US7017189B1 (en) *	2000-06-27	2006-03-21	Microsoft Corporation	System and method for activating a rendering device in a multi-level rights-management architecture
US6891953B1 (en) *	2000-06-27	2005-05-10	Microsoft Corporation	Method and system for binding enhanced software features to a persona
US7225159B2 (en) *	2000-06-30	2007-05-29	Microsoft Corporation	Method for authenticating and securing integrated bookstore entries
US20020046045A1 (en) *	2000-06-30	2002-04-18	Attila Narin	Architecture for an electronic shopping service integratable with a software application
US6419464B1 (en) *	2001-01-16	2002-07-16	Honeywell International Inc.	Vane for variable nozzle turbocharger
US7188342B2 (en) *	2001-04-20	2007-03-06	Microsoft Corporation	Server controlled branding of client software deployed over computer networks
US6607164B2 (en)	2001-10-22	2003-08-19	Toyota Motor Sales, U.S.A., Inc.	Wing airfoil
US7759327B2 (en) *	2006-01-06	2010-07-20	The Trustees Of Columbia University In The City Of New York	Compositions containing zinc salts for coating medical articles
US8066219B2 (en) *	2008-04-25	2011-11-29	Karem Aircraft, Inc.	Anhedral tip blades for tiltrotor aircraft
GB201109412D0 (en) *	2011-06-03	2011-07-20	Blade Dynamics Ltd	A wind turbine rotor
DE102012206109C5 (de) *	2012-04-13	2022-06-09	Wobben Properties Gmbh	Rotorblatt einer Windenergieanlage
DE102017124861A1 (de)	2017-10-24	2019-04-25	Wobben Properties Gmbh	Rotorblatt einer Windenergieanlage und Verfahren zu dessen Auslegung
US10875639B2 (en)	2019-02-19	2020-12-29	United States Of America As Represented By The Secretary Of The Army	Bi-planer rotor blade
CN113942642B (zh) *	2021-11-19	2023-09-08	中国直升机设计研究所	一种带有气动压力测量传感器的直升机桨叶

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR421916A (fr) *	1909-10-14	1911-03-08	Henry Chaigneau	Hélice aérienne indéformable
FR859557A (fr) *	1938-08-29	1940-12-21	Aviat Patents	Perfectionnements aux pales d'hélices aériennes et procédé pour situer l'axe de pivotement des pales d'hélices à pas variable
US3782856A (en) *	1972-05-31	1974-01-01	United Aircraft Corp	Composite aerodynamic blade with twin-beam spar
US4248572A (en) *	1978-12-11	1981-02-03	United Technologies Corporation	Helicopter blade
FR2479132A1 (fr) *	1980-03-25	1981-10-02	Aerospatiale	Pale a hautes performances pour rotor d'helicoptere
EP0037633B1 (en) *	1980-03-28	1986-07-30	WESTLAND plc	Helicopter rotor blade

1984
- 1984-06-13 CA CA000456459A patent/CA1243993A/en not_active Expired
- 1984-06-19 US US06/622,275 patent/US4668169A/en not_active Expired - Lifetime
- 1984-07-02 IT IT48487/84A patent/IT1177861B/it active

Also Published As

Publication number	Publication date
US4668169A (en)	1987-05-26
CA1243993A (en)	1988-11-01
IT1177861B (it)	1987-08-26

Similar Documents

Publication	Publication Date	Title
IT8448487A0 (it)	1984-07-02	Perfezionamento nelle pale dei rotori di elicotteri
GB2168111B (en)	1988-05-18	Rotor aerofoil blade containment
DE3769714D1 (de)	1991-06-06	Statorschaufel.
IT1164559B (it)	1987-04-15	Perfezionamento nelle lame per seghe
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IT1159375B (it)	1987-02-25	Rotore per elicotteri
IT8247680A0 (it)	1982-01-29	Perfezionamento nelle macchine tranciatrici
FR2591558B1 (fr)	1992-11-27	Pale de rotor principal d'helicoptere
DE3769903D1 (de)	1991-06-13	Hubschrauberrotorblattprofil.
BE894260A (fr)	1983-02-28	Aubes de rotor de turbine
IT1114058B (it)	1986-01-27	Perfezionamento nelle pale per il rotore principale di elicotteri
DE3682889D1 (de)	1992-01-23	Elektrochemische bearbeitungsmaschine zur bearbeitung von rotorschaufeln.
GB2167500B (en)	1988-05-18	Rotor aerofoil blade containment
IT1205405B (it)	1989-03-15	Rotore per elicotteri
FI872468A0 (fi)	1987-06-02	Rotor/blandare foer blandning av massamaterial och foer justering av slipning.
GB8516708D0 (en)	1985-08-07	Rotor blade construction
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IT1205404B (it)	1989-03-15	Rotore per elicotteri
GB2148820B (en)	1987-03-25	Helicopter rotor blades
FR2575992B1 (fr)	1987-06-26	Raccordement de pale de rotor
SE8204994D0 (sv)	1982-09-02	Rotorkniv

Legal Events

Date	Code	Title	Description
1999-10-27	TA	Fee payment date (situation as of event date), data collected since 19931001	Effective date: 19970730