Global Patent Index - EP 1091870 A1

EP 1091870 A1 2001-04-18 - SPIRAL CYLINDRICAL WING TIP

Title (en)

SPIRAL CYLINDRICAL WING TIP

Title (de)

ZYLINDRISCHE UND SPIRALFÖRMIGE FLÜGELRANDKAPPE

Title (fr)

BOUT D'AILE CYLINDRIQUE ET EN SPIRALE

Publication

EP 1091870 A1 (FR)

Application

EP 99929388 A

Priority

  • FR 9901603 W
  • FR 9808472 A

Abstract (en)

[origin: FR2780700A1] The invention concerns a device in the form of a spiral cylindrical cavity, mobile or fixed, capable of being adapted to the tip of all carrier profiles, in particular to aeroplanes and gliders or craft requiring lifting capacity in its displacement, for reducing induced drag, increasing thrust and reaching in flight or lift, low speed levels with wide angles of incidence and high speed levels in cruising degree. The invention enables to use for similar performances or for initial performances weaker traction systems for longer and faster flights using less fuel and/or using larger loads. Moreover, said device enables to considerably and artificially increase a wing extension while preserving the same profile and the initial aerodynamics of an aeroplane in flight or of a levitating craft using lifting capacity up to subsonic speed.

IPC 1-7 (main, further and additional classification)

B64C 23/06

IPC 8 full level (invention and additional information)

B64C 23/06 (2006.01)

CPC (invention and additional information)

B64C 23/065 (2013.01); Y02T 50/164 (2013.01)

Citation (search report)

See references of WO 0001580A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

FR 2780700 A1 20000107; FR 2780700 B1 20000929; AU 4621699 A 20000124; BR 9912513 A 20010502; CA 2335929 A1 20000113; EP 1091870 A1 20010418; WO 0001580 A1 20000113; WO 0001580 B1 20000316

INPADOC legal status


2004-01-07 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030701

2001-04-18 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010122

2001-04-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2001-04-18 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI