IN156598B - - Google Patents

Info

Publication number: IN156598B
Authority: IN; India

Application number

IN593/CAL/82A

Other languages

English (en)

Inventor

Jean-Jacques Philippe

Robert Marius Claude Lyothier

Original Assignee

Onera (Off Nat Aerospatiale)

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.)

1981-06-05

Filing date

1982-05-24

Publication date

1985-09-14

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9259263&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=IN156598(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1982-05-24 Application filed by Onera (Off Nat Aerospatiale) filed Critical Onera (Off Nat Aerospatiale)

1985-09-14 Publication of IN156598B publication Critical patent/IN156598B/en

Links

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
- B64C27/46—Blades
- B64C27/463—Blade tips

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Aviation & Aerospace Engineering (AREA)
Structures Of Non-Positive Displacement Pumps (AREA)
Wind Motors (AREA)
Turbine Rotor Nozzle Sealing (AREA)

IN593/CAL/82A 1981-06-05 1982-05-24 IN156598B (ja)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR8111232A FR2507149A1 (fr)	1981-06-05	1981-06-05	Extremite de pale pour voilure tournante d'aeronef et voilure tournante pourvue de telles extremites de pale

Publications (1)

Publication Number	Publication Date
IN156598B true IN156598B (ja)	1985-09-14

Family

ID=9259263

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IN593/CAL/82A IN156598B (ja)	1981-06-05	1982-05-24

Country Status (7)

Country	Link
US (1)	US4451206A (ja)
EP (1)	EP0067097B1 (ja)
JP (1)	JPS57209499A (ja)
BR (1)	BR8203434A (ja)
DE (1)	DE3261125D1 (ja)
FR (1)	FR2507149A1 (ja)
IN (1)	IN156598B (ja)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2617118B1 (fr) *	1987-06-29	1992-08-21	Aerospatiale	Pale a extremite courbe pour voilure tournante d'aeronef
GB8815955D0 (en) *	1988-07-05	1988-11-16	Westland Helicopters	Helicopter rotor blades
US5161953A (en) *	1991-01-28	1992-11-10	Burtis Wilson A	Aircraft propeller and blade element
JP3916723B2 (ja) *	1997-05-15	2007-05-23	富士重工業株式会社	回転翼航空機の回転翼羽根
WO1998056654A1 (en) *	1997-06-13	1998-12-17	The Boeing Company	Blunt-leading-edge raked wingtips
JP3189251B2 (ja) *	1999-03-12	2001-07-16	株式会社コミュータヘリコプタ先進技術研究所	回転翼機のロータブレード
FR2793766B1 (fr) *	1999-05-21	2001-07-13	Eurocopter France	Pale pour voilure tournante d'aeronef
US6301868B1 (en)	1999-08-26	2001-10-16	James D. Siplinger	Vortex reducing mower blade
US6497385B1 (en)	2000-11-08	2002-12-24	Continuum Dynamics, Inc.	Rotor blade with optimized twist distribution
US7344360B2 (en)	2004-09-29	2008-03-18	General Electric Company	Wind turbine rotor blade with in-plane sweep and devices using same, and methods for making same
US7513750B2 (en) *	2006-03-08	2009-04-07	Sikorsky Aircraft Corporation	Rotor blade tip planform
ATE490914T1 (de) *	2008-05-22	2010-12-15	Agusta Spa	Drehmomentausgleichs-heckrotorblatt für hubschrauber
US7854595B2 (en) *	2008-07-30	2010-12-21	General Electric Company	Wind turbine blade tip shapes
AT507091B1 (de) *	2008-09-22	2010-02-15	Walter Enthammer	Strömungsmaschine
US10899440B2 (en)	2017-03-09	2021-01-26	Sikorsky Aircraft Corporation	Rotor blade tip design for improved hover and cruise performance
RU2734154C1 (ru) *	2019-12-24	2020-10-13	Общество с ограниченной ответственностью "ОКБ АВИАРЕШЕНИЯ" (ООО "ОКБ АВИАРЕШЕНИЯ")	Лопасть винта летательного аппарата вертолетного типа (варианты)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3399731A (en) *	1967-07-18	1968-09-03	Algy F. Giles Jr.	Rotor-blade
US3467197A (en) *	1968-05-07	1969-09-16	Bell Aerospace Corp	Rotor blade
US3721507A (en) *	1971-09-22	1973-03-20	United Aircraft Corp	Blade for high speed helicopter
CA1016524A (en) *	1974-01-03	1977-08-30	Textron Inc.	Helicopter rotor blade
GB1538055A (en) *	1975-05-19	1979-01-10	Westland Aircraft Ltd	Helicopter rotor blades
US3999888A (en) *	1975-06-25	1976-12-28	United Technologies Corporation	Composite tip weight attachment
US4130377A (en) *	1977-07-13	1978-12-19	United Technologies Corporation	Helicopter blade and rotor
US4142837A (en) *	1977-11-11	1979-03-06	United Technologies Corporation	Helicopter blade
US4248572A (en) *	1978-12-11	1981-02-03	United Technologies Corporation	Helicopter blade
US4324530A (en) *	1980-01-21	1982-04-13	United Technologies Corp.	Helicopter blade with a tip having a selected combination of sweep, taper and anhedral to improve hover efficiency
US4334828A (en) *	1980-01-21	1982-06-15	United Technologies Corporation	Helicopter blade with a tip having a selected combination of sweep, taper and anhedral to improve hover efficiency

1981
- 1981-06-05 FR FR8111232A patent/FR2507149A1/fr active Granted
1982
- 1982-05-19 DE DE8282400927T patent/DE3261125D1/de not_active Expired
- 1982-05-19 EP EP82400927A patent/EP0067097B1/fr not_active Expired
- 1982-05-24 IN IN593/CAL/82A patent/IN156598B/en unknown
- 1982-05-26 US US06/381,934 patent/US4451206A/en not_active Expired - Lifetime
- 1982-06-03 JP JP57094144A patent/JPS57209499A/ja active Granted
- 1982-06-04 BR BR8203434A patent/BR8203434A/pt not_active IP Right Cessation

Also Published As

Publication number	Publication date
US4451206A (en)	1984-05-29
JPS57209499A (en)	1982-12-22
FR2507149A1 (fr)	1982-12-10
DE3261125D1 (en)	1984-12-06
EP0067097B1 (fr)	1984-10-31
EP0067097A1 (fr)	1982-12-15
FR2507149B1 (ja)	1983-10-21
JPH0366198B2 (ja)	1991-10-16
BR8203434A (pt)	1983-06-07

Publication	Publication Date	Title
FR2499026B1 (ja)	1983-05-13
FR2499405B1 (ja)	1983-04-29
DE3249822A1 (ja)	1986-03-20
FR2498494B1 (ja)	1983-11-25
DE3280378D1 (ja)	1992-01-16
DE3103321C2 (ja)	1987-05-07
FR2499947B3 (ja)	1983-01-14
FR2498976B1 (ja)	1983-10-21
DE3248040C2 (ja)	1987-04-23
FR2497467B1 (ja)	1985-05-10
FR2499348B1 (ja)	1983-02-25
DE3229269C2 (ja)	1987-04-23
FR2498833B1 (ja)	1984-05-04
FR2498672B1 (ja)	1984-05-25
FR2499326B1 (ja)	1983-12-02
FR2497989B1 (ja)	1985-05-10
FR2499045B1 (ja)	1984-05-04
FR2498120B1 (ja)	1983-08-05
FR2498689B1 (ja)	1984-02-17
DE3101457C2 (ja)	1987-01-29
DE3304302C2 (ja)	1987-04-16
DE3229789C2 (ja)	1987-05-07
FR2498698B1 (ja)	1985-04-26
FR2480304B1 (ja)	1986-03-21
DE3278439T1 (ja)	1988-06-09